Westland-built Seakings - UK HC.4/HAS.5 and Qatari Mk.2A/2C/3

If you have any corrections or update, please send me e-mail.

Welcome to "how to" page for Westland-built Seakings - UK HC.4/HAS.5 and Qatari Mk.2A/2C/3. The site will be divided by scale and then by type.

Probable configuration of HAS.5s in Gulf war: (based on available pictures and info)

ZE422: BS 381C:637 Medium Sea Grey camouflage - no barn doors, no EAPS, installed - MAD sponson, FLIR, front pylons, dual chaff/flare launchers on port side, GPS antenna on tail, IR jammer frame attachement points
XV661: BS 381C:637 Medium Sea Grey camouflage - no barn doors, no EAPS, installed - MAD sponson, FLIR, front pylons, - the rest probably same as XV661, but there are no photos
XZ571: BS 381C:637 Medium Sea Grey camouflage - no GPS antenna, installed - MAD sponson, Menagerie, 21/05/89 barn door ramp, front pylons
XZ575: BS 381C:637 Medium Sea Grey camouflage, installed 11/08/91 - MAD sponson, Menagerie, barn door ramp
XZ577: BS 381C:638 Dark Sea Grey camouflage, installed - MAD sponson, IR jammers, cargo hook assembly, front pylons, Menagerie
ZA137: BS 381C:637 Medium Sea Grey camouflage, installed - MAD sponson, IR jammers, cargo hook assembly, front pylons, Menagerie, barn door ramp

1:48

In August 2023 Airfix released new tool Sea King HAS.5 in 1:48, kit no. A11006
This is probably the best Seaking HAS.5 so far in any scale.
If you want to build proper UK HAS.5 Sea King from Gulf war from Airfix kit number A11006, you need to make some "tweaks and updates" to the kit.
If you want to build proper UK HC.4/Qatari Mk.2A/2C/3, you need to wait for Airfix to release kit with specific HC.4 parts.

UK HAS.5

Installed:

kit part B18 - strake
kit parts D8 - composite main rotor blades
kit part D5 and D9 - 6-bladed tail rotor
kit parts F8 and F13 - big dorsal cover for MEL ARI.5991 Sea Searcher I-band surface-search radar
kit part F5 - tail drive shaft cover
kit part C15 - 3 gravity-filled refuelling points - installed all 3
kit part A6 - cut out the gravity-filled refuelling point as per instructions
kit part G20 - install the gravity-filled refuelling point as per instructions
kit parts D33 and D34 - rear view mirrors
kit part X22 - starboard non bulged window
kit parts D23, D30, D38 and D39 - winch assembly
kit parts D17 and D18 - pitot tubes
kit parts G1 and G2 - nose mounted Racal MIR 2 ESM "Orange Crop" RWRs
kit part E1 - with mounts for UHF homing earials
kit part D16 - fuel dump
kit part D22 - I-Band transponder
kit part X20 - AN/ALQ-157 IR jammer
kit part D19 - UHF wire antenna - add thin wire between moulded-on antenna on starboard sponson and two kit parts D19, check pictures
kit part D21 - antenna
kit parts G10, G22, G23, G24, G25, G32, G34, G35 - antenna
kit part G31 - electronics cooling exhaust - different shape, compare with pictures
kit part X1 - light next to the winch
kit part B28, B29 and B31 - window blanking plates
kit part X19 - lower formation light - red color
kit parts G3, G4, G5 and G6 - fuselage mounted Racal MIR 2 ESM "Orange Crop" RWRs

Not installed:

Step 35 till 43 - Parts F43, F44, F15, F27, F33, F34, F30, F14, F25
Step 46 - Parts G11, G12, G13
Step 57 - do not install the console
Step 58 - do not install the seat
kit part F9 - short step under the port sliding doors
kit part C17 - long step under the port sliding doors
kit parts C15 and C16 - vertical strengthening plates on the joint of fuselage and tail - they were NOT on Gulf war HAS.5, so remove them and replace the lost rivets and lines
kit part D27 - VOR/ILS localiser
kit part X15 - starboard bulged window
kit parts D37 - hand holds
kit part G15 - ?
kit parts C2, C3, C4, C5, C7, C8, C9 and C10 - EAPS - probably removed thanks to "hot" conditions when sand/debris was not a risk and the added power outweighted the higher risk of F.O.D
kit parts C1 and C6 - FOD ramp - probably removed thanks to "hot" conditions when icing was not a risk and the added power outweighted the higher risk of F.O.D
kit part C16 - DO NOT drill the holes under the sliding window as in instructions Page 4 (they are for short steps which were not installed)
kit part C16 - DO NOT fill the holes above the sliding window as in instructions Page 4 (they are for the winch which was installed)
nose tipping light

Missing in the kit:

Trimble NAVSTAR GPS - looks like only ZE422 and XV661 had it installed on kit part F5, in 1/3th of the last tail shaft panel
longer port MAD sponson - MAD and winch assembly removed in 80s, so the pylon is empty
frame for AN/ALQ-157 IR jammer - two different frames, why ? check ?
dual M-130 chaff/flare launchers on port side next to fuselage/tail joint - maybe on both sides ? check ?
GPMG and the pintle mount - hidden in cabin, so no external difference, mount when opening the side sliding door
SAR equipment - hidden in cabin, so no external differences install when opening the sliding door
Plain and Secure Speech Radios - hidden in cabin, so no external difference
For machines ZE422 and XV661, you can use the G7 and G8 parts for the GEC Avionics "Sandpiper" FLIR used in Gulf. Fill in the 3 windows and make one bigger window, then scratchbuild the inverted tripod mount or use the SEMA models tripod and scratchbuild the FLIR ball itself. You also need to add the strenghtening plates under the tripod mounts, check the pictures.

Updates for the kit:

Eduard - EX989 mask, EX990 TFace mask, 3DL48145 3D instrument panel, 491395 color PE set, FE1395 color PE set ZOOM, FE1397 seatbelts, 648930 resin wheels, 644248 resin instrument and overhead panels, 491405 rear cargo interior, 644257 resin set PLUS
BAM models - BAM48097 crew door, 48099 main rotor head, 480100 overhead console, 480100 main and tail landing gear with wheels
SEMA Models - Sea King Mk.41 (Germany) conversion set - usable parts: HF Radio Antenna pylons, Pitot tubes, Fuel jettison pipe, Tie Down Hooks, Lifting frame
New Ware - NWAM1159 ADVANCED kabuki masks all windows including seal masks, other clear parts, wheels, camouflage details, NWAM1160 EXPERT kabuki masks all windows including seal and inner side masks, other clear parts, wheels, camouflage details Quinta Studio - QD48430 HAS.5 3D-Printed and coloured Interior, QDS-48430 HAS.5 3D-Printed and coloured Interior (Small version), QD48432 sonar screen, QR48058 seat pad with seatbelts
Air Graphic Models - AC48-02 sand filter set, AC48-03 6-bladed tail rotor
3DLINE models - MA01009 masks
CT scale models - CTM011 masks
3DPM - DPM48077 Crew Door
JSProduct - 48-101 weighted wheels and tail rotor

UK HC.4

Need to wait for specifix Airfix release, some parts are in the kit already, but most of them not.
For configuration of specific airframe, check the 1:72 section.

Updates for the kit:

BAM models - BAM48097 crew door, 48099 main rotor head, 480100 overhead console, 480100 main and tail landing gear with wheels
New Ware - NWAM1159 ADVANCED kabuki masks all windows including seal masks, other clear parts, wheels, camouflage details, NWAM1160 EXPERT kabuki masks all windows including seal and inner side masks, other clear parts, wheels, camouflage details SEMA Models - Sea King Mk.41 (Germany) conversion set - usable parts: HF Radio Antenna pylons, Pitot tubes, Centrisep EAPS filter exhausts, Fuel jettison pipe, Tie Down Hooks, Lifting frame
3DLINE models - MA01009 masks
CT scale models - CTM011 masks
Air Graphic Models - AC48-02 sand filter set, AC48-03 6-bladed tail rotor
3DPM - DPM48077 Crew Door
JSProduct - 48-101 weighted wheels and tail rotor, 48-102 Centrisep EAPS filter

Qatari Mk.2A (based on HC.4 Commando)

Better to wait for specifix HC.4 Airfix release, some parts are in the kit already, but most of them not.

Installed:

kit part A2 - rear wall for long cabin
kit parts C2, C3, C4, C5, C7, C8, C9 and C10 - EAPS
kit part D16 - fuel dump
kit part F3 - nose panel without tipping light
kit part F5 - tail drive shaft cover - remove the GPS mount and extend the cover with kit part E9
kit parts D23, D30, D38 and D39 - winch assembly
kit parts D7 - metal main rotor blades (upgraded to composite blades - when ?)
kit parts X10, X16, X22 and X23 - non-bulged window
kit parts D27 ? - VOR/ILS localiser antenna - on tail, position above the tailwheel and slightly to the aft, check pictures (probably added during some retrofit ?)
kit part E1 - with mounts for UHF homing earials
kit part C15 - 2 gravity-filled refuelling points on the starboard side, missing the middle one - fill it in
kit parts G24, G26, G34, G35 - antennas
kit part X19 - lower formation light - red color
interior for troops - install all the seats
antenna fit - compare with pictures

Not installed:

kit parts C15 and C16 - vertical strengthening plates on the joint of fuselage and tail - they were NOT on Gulf war Mk.2As, so remove them and replace the lost rivets and lines
kit part D22 - I-Band transponder
kit part F2 - rear wall for short cabin
kit parts B29 and B31 - blanking plates for windows
no main rotor blades folding system
no folding tail boom
no ASW interior parts
nose tipping light

Missing in the kit:

LORAN "towel rack" antenna - missing from the Airfix no. A11006 kit, need to wait for future HC.4 kit or conversion part
"Commando/HC.4"-like sponsons with flotation gear installed with floats in disc and with compressed gas balls - need to wait for the future HC.4 kit or conversion part

Updates for the kit:

Eduard - EX989 mask, EX990 TFace mask, FE1397 seatbelts, 648930 resin wheels
BAM models - BAM48097 crew door, 48099 main rotor head, 480100 overhead console, 480100 main and tail landing gear with wheels
New Ware - NWAM1159 ADVANCED kabuki masks all windows including seal masks, other clear parts, wheels, camouflage details, NWAM1160 EXPERT kabuki masks all windows including seal and inner side masks, other clear parts, wheels, camouflage details SEMA Models - Sea King Mk.41 (Germany) conversion set - usable parts: HF Radio Antenna pylons, Pitot tubes, Centrisep EAPS filter exhausts, Fuel jettison pipe, Tie Down Hooks, Lifting frame
Air Graphic Models - AC48-02 sand filter set, AC48-03 6-bladed tail rotor
3DLINE models - MA01009 masks
CT scale models - CTM011 masks
3DPM - DPM48077 Crew Door
JSProduct - 48-101 weighted wheels and tail rotor, 48-102 Centrisep EAPS filter

Info:

Atleast one airframe, QA-22, was later repainted in lighter Mk.3 camo. During Gulf war, all Mk.2s wore the original darker camo.

Qatari Mk.2C VIP (based on HC.4 Commando)

Better to wait for specifix HC.4 Airfix release, some parts are in the kit already, but most of them not. Installed:

kit part D5 and D9 - 6-bladed tail rotor
kit part C17 - long HC.4-like step on port side under the sliding window
kit part C15 - 2 gravity-filled refuelling points on the starboard side, missing the middle one - fill it in
kit parts C2, C3, C4, C5, C7, C8, C9 and C10 - EAPS
kit part E1 - with mounts for UHF homing earials
kit part B28 - blanking plate for the rear window
kit part D16 - fuel dump
kit part F3 - nose panel without tipping light
kit parts D7 - metal main rotor blades (pics with composite blades after the helo was sold to Sierra Leone only)
kit parts D27 ? - VOR/ILS localiser antenna - on tail, position above the tailwheel and slightly to the aft, check pictures

Not installed:

kit parts C15 and C16 - vertical strengthening plates on the joint of fuselage and tail - they were NOT on Gulf war Mk.2C, so remove them and replace the lost rivets and lines
kit part D22 - I-Band transponder
kit part G19 - blanking plate for port pressure-refuelling point - blank off the other pressure-refuelling point under the rebuilt sliding doors
no main rotor blades folding system
no folding tail boom
kit part B18 - strake, fill in the mounting points on kit part C15

Missing in the kit:

LORAN "towel rack" antenna - missing from the Airfix no. A11006 kit, need to wait for future HC.4 kit or conversion part
different window setup on starboard side with two added "rails" above and below them (probably for keeping the fuselage from twisting) - check pictures and scratchbuild it
different door setup on port side - no sliding door, but up-and-down fold out doors with stairs with added 1 window - same size as the kit´s part X16 - check pictures and scratchbuild it
add one more window on the port side - same size as the kit´s part X16 - check pictures and scratchbuild it
duct for aircondition ? on port side - check pictures and scratchbuild it
"Commando/HC.4"-like sponsons with flotation gear installed with floats in disc and with compressed gas balls - need to wait for the future HC.4 kit or conversion part

Updates for the kit:

Eduard - EX989 mask, EX990 TFace mask, FE1397 seatbelts, 648930 resin wheels
BAM models - BAM48097 crew door, 48099 main rotor head, 480100 overhead console, 480100 main and tail landing gear with wheels
New Ware - NWAM1159 ADVANCED kabuki masks all windows including seal masks, other clear parts, wheels, camouflage details, NWAM1160 EXPERT kabuki masks all windows including seal and inner side masks, other clear parts, wheels, camouflage details SEMA Models - Sea King Mk.41 (Germany) conversion set - usable parts: HF Radio Antenna pylons, Pitot tubes, Centrisep EAPS filter exhausts, Fuel jettison pipe, Tie Down Hooks, Lifting frame
Air Graphic Models - AC48-02 sand filter set, AC48-03 6-bladed tail rotor
3DLINE models - MA01009 masks
CT scale models - CTM011 masks
3DPM - DPM48077 Crew Door
JSProduct - 48-101 weighted wheels and tail rotor, 48-102 Centrisep EAPS filter

Qatari Mk.3 (based on HC.4 Commando but with floats, stretched cabin and greater fuel supply from HC.4 Commando version)

Installed:

kit part B18 - strake
kit part D5 and D9 - 6-bladed tail rotor
kit parts D7 - metal main rotor blades (later composite blades, but in Gulf war 100% photo proof for metal blades)
kit parts E18, E19, E20 and E21 - HAS.3-like short sponsons - but remove the flotation bags from kit parts E20 and E21, and install "Commando/HC.4"-like flotation gear installed with floats in disc and with compressed gas balls
kit parts E2 and E3 - small dorsal radar dome
kit part E9 - tail rotor shaft cover - installed (CHECK INSTRUCTIONS FOR ANTENNAS)
kit parts C2, C3, C4, C5, C7, C8, C9 and C10 - EAPS
kit part X11 - bulged starboard rear window
kit parts D23, D30, D38 and D39 - winch assembly
kit part E1 - with mounts for UHF homing earials
kit part D16 - fuel dump
kit part D22 - I-Band transponder
kit part C15 - 2 gravity-filled refuelling points on the starboard side, missing the middle one - fill it in
kit parts D27 ? - VOR/ILS localiser antenna - on tail, position above the tailwheel and slightly to the aft, check pictures
kit part G19 - blanking plate for port pressure-refuelling point - see note below at Missing in the kit section for more info
kit part C17 - long HC.4-like step on port side under the sliding window

Not installed:

kit parts C15 and C16 - vertical strengthening plates on the joint of fuselage and tail - they were NOT on Gulf war Mk.3s, so remove them and replace the lost rivets and lines
kit parts G1, G2, G3, G4, G5 and G6 - nose and fuselage mounted Racal MIR 2 ESM "Orange Crop" RWRs

Missing in the kit:

LORAN "towel rack" antenna - missing from the Airfix no. A11006 kit, need to wait for future HC.4 kit or conversion part
nose panel with tipping light - missing from the Airfix no. A11006 kit, need to wait for future HC.4 kit or conversion part
attachment points with AM-39 Exocet rails
(NOTE: attachment points on all airframes, but no pics for QA-34, QA-35, QA-36 and QA-37 with either rails or rails with Exocets)
(NOTE 2: only one picture shows 2 x AM-39 Exocet rockets carried together, for QA-30 during pre-delivery trials)
(NOTE 3: the support struts for Exocet rails are different from Brazil (Sikorski-built) Seakings, but same as on Pakistani (Westland-built) Seakings
port pressure-refuelling point - next to the sliding door like on HC.4, BUT moved more aft (check and compare with pictures) - probably interference with cable connections for the AM-39 Exocet rails (photo of Brazilian Sikorski-built Seaking shows connection to rails in the place of the pressure-refuelling point)

Updates for the kit:

Eduard - EX989 mask, EX990 TFace mask, FE1397 seatbelts, 648930 resin wheels
BAM models - BAM48097 crew door, 48099 main rotor head, 480100 overhead console, 480100 main and tail landing gear with wheels
SEMA Models - Sea King Mk.41 (Germany) conversion set - usable parts: HF Radio Antenna pylons, Pitot tubes, Centrisep EAPS filter exhausts, Fuel jettison pipe, Tie Down Hooks, Lifting frame
New Ware - NWAM1159 ADVANCED kabuki masks all windows including seal masks, other clear parts, wheels, camouflage details, NWAM1160 EXPERT kabuki masks all windows including seal and inner side masks, other clear parts, wheels, camouflage details Quinta Studio - QD48432 sonar screen, QR48058 seat pad with seatbelts
Air Graphic Models - AC48-02 sand filter set, AC48-03 6-bladed tail rotor
3DLINE models - MA01009 masks
CT scale models - CTM011 masks
3DPM - DPM48077 Crew Door
JSProduct - 48-101 weighted wheels and tail rotor, 48-102 Centrisep EAPS filter

1:72

UK HAS.5

For specific airframe configuration, check the 1:48 section.

Base kit: Revell 04450

Installed:

kit parts 104 and 105 - 6-bladed tail rotor
kit parts 28 and 29 - FOD ramp - probably removed thanks to "hot" conditions when icing was not a risk and the added power outweighted the higher risk of F.O.D
kit parts 106 and 107 - big dorsal radar cover for ARI.5991 MEL Sea Searcher I-band surface-search radar
kit parts 53, 54, 55 and 56 - winch assembly
kit part 68 - Pitot tubes
kit part 108 - strake
kit part 124 - antenna
kit part 115 - bottom position light
kit part 116 - antenna
kit part 74 and 75 - antenna - attach thin wire between the antenna poles
kit parts 113 and 114 - antennas
kit parts 121 and 122 - antennas
kit part 142 - antenna
kit part 46 - fuel dump
kit part 60 - sonar hole cover
kit part 139 - mount it backwards from instructions pointing 45 degrees down, some kind of cooling exhaust
kit part 96 - nose with mounted Racal MIR 2 ESM "Orange Crop" RWRs
kit parts 102 and 103 - long port sponson (the MAD and the winch assembly was removed to save weight)
kit parts 109, 110, 111 and 112 - fuselage mounted Racal MIR 2 ESM "Orange Crop" RWRs

Not installed:

kit part 47 - VOR/ILS localiser
kit part 57 - small radar dome
kit parts 69 and 70 - weather radar
kit part 140
kit parts 43 and 44 - 5-bladed tail rotor
kit part 26 - nose panel with tipping light
kit parts 97, 98, 99, 100 and 101 - EAPS

Missing in the kit:

Trimble NAVSTAR GPS - looks like only XV661 had it installed, check pictures ?
frame for AN/ALQ-157 IR jammers - two different frames, why ? - in Airfix HC.4 kit parts F20+F21, but maybe wrong version, check ?
AN/ALQ-157 IR jammers - in Airfix HC.4 kit parts E15
dual M-130 chaff/flare launchers on port side next to fuselage/tail joint
GPMG and the pintle mount - hidden in cabin, so no external difference, mount when opening the side sliding door - in Airwaves AES72127 set or in Airfix A04056 HC.4 kit part F27 (pintle mount)
SAR equipment - hidden in cabin, so no external differences
Plain and Secure Speech Radios - hidden in cabin, so no external difference
GEC Avionics "Sandpiper" FLIR - in resin set from Airwaves SC72106 - need to scratchbuild the mounting bracket - starboard side, ahead of the front pylon, simillar to S-61N/L mount
starboard side fuselage - middle gravity-filled refuelling point - compare with pictures and update the fuselage

UK HC.4

In December 2015 Airfix released new tool Sea King HC.4 in 1:72, kit no. A04056.
This is probably the best HC.4 so far, because Airfix used LIDAR (laser scanner) to scan the original 1:1 airframe and convert it to CAD design and produce 1:72 kit.
Unfortunately, the kit is not great in details and also the scribing is so so, definetly not something you could expect in 21st century ....
If you want to build proper HC.4 Sea King from Gulf war from Airfix kit, you need to make some "tweaks" to the kit.
Following is a table with "lumps and bumps" configuration, as there were few setups thanks to ongoing upgrade of electronics etc.

Configuration of antennas, accesories and camouflage schemes

All the information in the table below is based on available pics !! And, yes, it could changed while in Gulf, there is just not the photo proof, yet.

ser. no.	D9+C17	F20+F21	E15	A5+A7	RWR setup	F15+F16	C11	C9+F28	camouflage	note

ZA291 VN				yes	3		yes	yes	pink	*2, RWR setup from info only
ZA293 VP	yes	yes		yes	1 (3 in 1993)		yes	yes	pink	EAPS + ALQ frame during washdown
ZA296 VK		yes	yes	yes	1 (later 2)	yes	yes	yes	pink	F.O.D. ramp
ZA298 WA/WJ				yes			yes	yes	pink
ZA310 VQ		no	no	yes	1	no	yes	yes	pink	F.O.D. ramp
ZA312 B	yes	no	no	yes	2	yes	yes	yes	pink	invasion stripes
ZA313 E	yes	no	no	yes	2 (3 in 1992)	yes	yes	yes	pink	invasion stripes
ZA314 WD/WM	yes	no	no	yes	2	yes	yes	yes	pink	*1
ZD476 VJ	yes	yes	yes	yes	1	yes	yes	yes	pink	AN/ALQ-157 on pic with F.O.D. only
ZD477 A	yes	no	no	yes	2 (3 in 1993)	yes	yes	yes	pink	invasion stripes, M-130 on invasion stripes pic only
ZD478 VM	yes	yes	no	yes	1	yes	yes	yes	pink
ZD480 C	yes	no	no	yes	2 (3 in 1992)	yes	yes	yes	pink	invasion stripes
ZE425	yes	yes	yes	yes	3	no	yes	yes	pink
ZE427 WB/WK	yes	no	no	yes	2	yes	yes	yes	pink	EAPS + invasion stripes with "WK"
ZE428 WC/WL	yes	no	no	yes	2	no	yes	yes	pink	EAPS + invasion stripes with "WL"
ZF117 D	yes	no	no	yes	2 (3 in 1993)	yes	yes	yes	pink	EAPS + M-130 + invasion stripes, orange ID panel behind rotor head
ZF118 VL	no	yes	yes	yes	2	yes	yes	yes	green	F.O.D. ramp
ZF119 VO	yes	yes	yes	yes	2	yes	yes	yes	green	F.O.D. ramp or EAPS
ZG820 F	yes	no	no	yes	2 (3 in 1992)	yes	yes	yes	pink	invasion stripes, orange ID panel behind rotor head
ZG821 WE/WN	yes	no	no	yes	2 (3 in 1993)	no	yes	yes	pink	invasion stripes on "WN" only
ZG822 WF/WO	yes	no	no	yes	2		yes	yes	pink

*1 - as WD - no invasion stripes, no EAPS, no F.O.D. ramp, no chaff/flare, no IR jammer
*2 - there is no pic of ZA291 in Gulf setup, only info that it had everything installed
NOTE: where there is no info of "yes/no", there are no pics to prove it.

Abbreviations: (antennas and other "lumps and bumps")

ZA314
ZA314

01 - front small RWR "Prophet" - in kit moulded on part no. F12
02 - HF antenna - every airframe had this antenna installed - in kit parts no. A5+A7 (antenna masts) + thin wire for the antenna itself
03 - lower UHF antenna - every airframe had this antenna installed - in kit part no. C9
04 - DME antenna - every airframe had this antenna installed - in kit moulded on parts no. A1+A2
05 - rear small RWR "Prophet" - not in the kit (they should be, they are part of the rear hemisphere if the airframe has the front hemisphere antennas)
06 - VOR/ILS localiser antenna - every airframe had this antenna installed (on both sides of the fuselage) - not in the kit (they are in Revell kit)
07 - upper UHF/VUHF - every airframe had this antenna installed - in kit moulded on part A1 BUT it is wrong shape - compare and trim by pictures
08 - Trimble NAVSTAR GPS - every airframe had this antenna installed (except ZA310 - maybe installed later ? no photo proof yet) - NOT moulded in the kit
09 - V tac antenna - every airframe had this antenna installed - in kit part no. F28
10 - I band transponder - in kit moulded on part no. A1

ZD479
ZD479

01 - I band transponder - in kit moulded on part no. A1
02 - V tac antenna - every airframe had this antenna installed - in kit part no. F28
03 - VOR/ILS localiser antenna - every airframe had this antenna installed (on both sides of the fuselage) - not in the kit (they are in Revell kit)
04 - M-130 chaff/flare - mounted on both sides of rear fuselage - it is possible, that during the conflict, all airframes had them installed - no photo proof for every airframe - check the pics - in kit parts no. F15+F16
05 - fuel dump - every airframe had this installed - in kit part no. C5
06 - VAIR - every airframe had this installed - in kit part no. C8
07 - DME antenna - every airframe had this antenna installed - in kit moulded on parts no. A1+A2
08 - ADF "towel rack" antenna under the fuselage - every airframe had this antenna installed - in kit part no. C11
09 - Decca navigation unit - every airframe had this antenna installed - in kit part no. C28 - NOT IN INSTRUCTIONS !!!
10 - Trimble NAVSTAR GPS - every airframe had this antenna installed (except ZA310 - maybe installed later ? no photo proof yet - photo proof on pic from 1992) - NOT moulded in the kit
11 - upper UHF/VUHF - every airframe had this antenna installed - in kit moulded on part A1 BUT it is wrong shape - compare and trim by pictures
12 - AN/ALQ-157 IR jammer frame - not every airframe had installed either just the IR jammer frame or the frame with IR jammer - it is possible, that during the conflict, all airframes had them installed - no photo proof for every airframe - check the pic - in kit parts no. F20+F21 - in the exterior PE set from Eduard, but wrong type !! (the sides has round lightening holes, but in Gulf the frames had one big lightening hole)

bottom arrangement of antennas from the kit instructions

01 - I band transponder
02 - V tac antenna
03 - fuel dump
04 - M-130
05 - ADF antenna
06 - lower UHF antenna
07 - lower VHF antenna
08 - anti-collision beacon
09 - Chelton UHF homing antenna
10 - radar altimeter antenna
11 - controllable co-pilot spotlight
12 - fixed floodlights
13 - DME antenna
14 - doppler antenna
15 - ILS marker

Other things, for detail check other pics on my site:

EAPS - Engine Air Particle Separator - special sand/dust filter on engine intake - from pictures, some airframes had them installed, some had only the F.O.D. ramp and some had even removed the F.O.D. ramp - it is possible, that during the conflict, all except the shipborn airframes (ZF118 and ZF119), had them installed - no photo proof for every airframe - in kit parts no. D9+C17 - upgrade it with parts from Eduard set 72617 - 1,2,3,4,5 and 34
AN/ALQ-157 IR jammer - not every airframe had installed either just the IR jammer frame or the frame with IR jammer - it is possible, that during the conflict, all airframes had them installed - no photo proof for every airframe - check the pics - in kit part no. E15
GPMG and the pintle mount - every airframe had the fitting to use the GPMG - there is a photo proof of using them in Gulf - the pintle mount in the kit is correct, the gun is M2 version, UK airframes had GPMG, so replace it with e.g. Airwaves AES72127

There were 3 types of RWR setup:

1 - NO RWRs at all - check THIS (kit part F12) and: 1 - remove, 2 - fill and sand, 3 - leave (ILS/glide slope antenna), 4 - remove and sand
2 - "Prophet" older RWRs - small antennas on lower part of the nose + small antennas just ahead of the tail wheel - check THIS (kit part F12) and: 1 - remove, 2 - fill and sand, 3 - leave (ILS/glide slope antenna), 4 - leave. The kit is missing the small antennas mounted just ahead of the tail wheel - see THIS just below the M-130 mount - antennas are on both sides of the fuselage !!
3 - "Prophet" newest RWR - long nose mounted antennas (above the old antenas) (kit parts no. F22+F23 - NOT IN INSTRUCTIONS !!!) + long rear side fuselage mounted antennas (in the kit parts F24 + F25) - airframes ZA291 and ZE425 ONLY !! - check THIS (kit part F12) and: 1 - remove, 2 - install kit parts no. F22+F23 here, 3 - leave (ILS/glide slope antenna), 4 - leave. Additional pics of the front and rear antennas - FRONT and REAR

Additional pics of the modern HC.4 with great details HERE

Updates for the kit:
Eduard - 72617 exterior, 73545 interior, CX437 canopy mask, SS545 ZOOM

Additional info and configuration regarding the kit:

F11 - commando step - not so nice, replace it with PE parts from Eduard PE sets (parts 72617/6 and 9)
F3, C1, C2, C3 - seats in cargo compartment - all machines had them installed
C7 - Chelton UHF homing antenna - oval antenna cover with two protruding rods under the nose - remove the rods as they are not seen on the pictures which are available
E13 - "BriteStar" IR lamp - one info I have is that they installed only one on port side for Gulf ops - not installed according to pictures
F26+F27 - door mounted gun - in kit it is M2 version, UK airframes had GPMG, so replace it with Airwaves AES72127
B7+C29+D13 - winch assembly - all pics shows it installed on every airframe
C24+C25 - F.O.D. ramp
vertical strenghtening plates (on parts A1 and A2) - remove it EXCEPT you are building airframes ZG820, ZG821 and ZG822 !! they were retroffited later and were only on ZGxxx airframes from factory
main rotor blades - correct composite version for Gulf airframes
the kit is missing rear view mirrors (not in Eduard PE)
the kit is completely missing rivets
the kit has nearly toy-like rotor head, rebuild it or replace it (from Revell or Fujimi)
the kit is completely missing the cargo sling assembly, I will try to find the picture and how to replicate it

Additional info about camouflages:

orange ID panel on the spine behind the rotor on engine housing - known pictures of ZF117/D and ZG820/F, there is no photo proof for additional airframes, but probably all had them painted
the large patches of fresh desert pink color on some helos are oversprayed UK flags
in one picture, some helos had the UK flag painted under the nose, on they way to Gulf, then probably resprayed desert pink again
ZF118/VL had the nose and fuselage sprayed UK flag during whole conflict

If you want to build proper Gulf war Seaking HC.4 from Airfix kit, you should NOT USE parts:

C10 - antenna
F31+F32 - probably some modern antennas ? - not installed according to pictures
F17/F18 - nose mounted RWR antennas - newest type, not used in Gulf
B12 - 5 bladed tail rotor - all Gulf Sea Kings had 6 bladed tail rotors
F33 - RWR mounted under the tail - not installed on Gulf war airframes

Qatari Mk.2A (based on HC.4 Commando)

Base kit: Airfix A04056 HC.4

Installed:

kit parts E1 and E2 - starboard side windows
kit part E5 - starboard side aft window - replace it for non-bulged window
kit part F19 - port side blanking window
kit part E3 - port side window
kit part C5 - fuel dump
kit parts B7, D13, C29 - winch assembly
kit part C11 - LORAN antenna
kit part E14 - lower position light
kit part C9 - antenna
kit parts C17 and D9 - EAPS
kit parts D14 and D15 - Pitot tubes

Not installed:

kit part F11 - steps
kit parts F21 - IR jammer frames
kit parts F15, F16, F24, F25, F31, F32, F17, F18, F28, F33, C8 - various antennas
kit part E13 - IR light
kit parts E15 - IR jammers
kit parts A5 and A7 - antenna poles

Missing in the kit:

VOR/ILS localiser antenna - on tail, position above the tailwheel and slightly to the aft, check pictures (probably added during some retrofit ?)
metal main rotor blades - updated to composite, when ?
various antennas, compare with pictures and scratchbuild

Qatari Mk.2C VIP (based on HC.4 Commando)

Base kit: Airfix A04056 HC.4

kit part C5 - fuel dump
kit part C11 - LORAN antenna
kit part E14 - lower position light
kit part C9 - antenna
kit parts C17 and D9 - EAPS
kit part F12 - remove all the antenna bumps
kit parts D14 and D15 - Pitot tubes

Not installed:

kit part F11 - steps
kit parts F21 - IR jammer frames
kit parts F15, F16, F24, F25, F31, F32, F17, F18, F28, F33, C8 - various antennas
kit part E13 - IR light
kit parts E15 - IR jammers
kit parts A5 and A7 - antenna poles

Missing in the kit:

different door setup on port side - compare with pictures and scratchbuild
different windows setup on port and starboard side - compare with pictures and scratchbuild
VOR/ILS localiser antenna - on tail, position above the tailwheel and slightly to the aft, check pictures (probably added during some retrofit ?)
metal main rotor blades
various antennas, compare with pictures and scratchbuild

Qatari Mk.3 (based on HC.4 Commando but with floats, stretched cabin and greater fuel supply from HC.4 Commando version)

Base kit: Revell 04411 or 04899 Mk.41

Installed:

kit part 13 - cut out the fuselage and install bulged window kit part 17 + windows kit part 15 and 16
kit parts 97, 98, 99, 100 and 101 - EAPS
kit part 57 - small dorsal MEL ARI.5995 Sea Searcher radar dome
kit part 108 - strake
kit part 68 - Pitot tubes
kit part 104 and 105 - 6-bladed tail rotor
kit part 62 - LORAN antenna
kit parts 53, 54, 55 and 56 - winch assembly
kit parts 47 - VOR/ILS localiser antenna - on tail, position above the tailwheel and slightly to the aft, check pictures (probably added during some retrofit ?)
kit parts 30, 31, 38 and 39 - HAS.3-like short sponsons - but remove the flotation bags from kit parts 30 and 38, and install "Commando/HC.4"-like flotation gear installed with floats in disc and with compressed gas balls (only in Airfix A04056 HC.4 kit), do not install the enlarged lights on parts 30 and 38
kit part 46 - fuel dump

Not installed:

kit part 18 - do not cut out the fuselage and install bulged window kit part 17
kit part 18 - install window kit part 16
kit parts 28 and 29 - anti-ice shield
kit parts 69 and 70 - weather radar
kit parts 64 and 65 - antennas ?
kit parts 106 and 107 - big dorsal cover for MEL ARI.5991 Sea Searcher I-band surface-search radar

Missing in the kit:

attachment points with AM-39 Exocet rails
(NOTE: attachment points on all airframes, but no pics for QA-34, QA-35, QA-36 and QA-37 with either rails or rails with Exocets)
(NOTE 2: only one picture shows 2 x AM-39 Exocet rockets carried together, for QA-30 during pre-delivery trials)
(NOTE 3. you can take rails from Heller Super Puma kit and rockets from the same kit or from Eduard 672060 set)
(NOTE 4: the support struts for Exocet rails are different from Brazil (Sikorski-built) Seakings, but same as on Pakistani (Westland-built) Seakings
metal main rotor blades - alter the composite ones by the instructions step 43 (later composite blades, but in Gulf war 100% photo proof for metal blades)
port pressure-refuelling point - next to the sliding door like on HC.4, BUT moved more aft (check and compare with pictures) - probably interference with cable connections for the AM-39 Exocet rails (photo of Brazilian Seaking shows connection to rails in the place of the pressure-refuelling point)