December 2025

De Havilland DH.110


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De Havilland DH.110

Unbuilt Protoype  - 1953

FROG 1955 issue - refurbished

The DH.110 was de Havilland's last twin boom design. Beset by development problems at the start, the RAF abandoned it in favour of the (even more troublesome) Gloster Javelin. However, the Fleet Air Arm recognised its potential for carrier operations and adopted it, as the superb Sea Vixen.


Development of the DH110 started in 1949 and it first flew 2 years later. In September 1952 at the Farnborough Air Show, whilst maneuvering hard at the end of a supersonic run toward the crowd, the first DH110 prototype disintegrated in the air, killing pilot John Derry and test observer Anthony Richards instantly. As the airframe broke up, the DH110's engines and cockpit section continued into the crowd, killing 29 spectators and injuring over 60. In the wake of the disaster, strict airshow rules were introduced for all British Air Shows to prevent aircraft flying toward the crowd.


After a redesign of the wing structure, flight testing resumed in 1954; XF828, the first semi-navalised prototype (fitted with arrestor hook, but without folding wings), took to the air in 1955.

 



 

Refurbishing the 1955 FROG DH.110 Kit


This kit is a definite mish-mash of various DH110/Sea Vixen prototypes, somewhere half-way between the 2nd and 3rd prototypes.

The decals give the serial number as XF830, which is a non-existent aircraft, possibly one of the cancelled RAF prototypes.  Instead, the kit seems nearest to XF828, the navalised 3rd prototype since its canopy/windscreen is closer to the production FAW.1, but despite this , its fuselage shape, wings and many other details suggest the earlier prototypes WG236 or WG240 e.g. it lacks the flying tailplane of the later aircraft and has the longer engine exhaust/jetpipes. There are also cannon troughs beneath the fuselage, which are incorrect and the engine intakes are not the right shape (and entirely see-through).


Since I already have a representation of XF828, this left me with a choice;  complete it unchanged as the imaginary XF830 (as FROG intended), or backdate it to WG240, either in the naval colour scheme, or even the all-black scheme it wore for the ill-fated Farnborough Air Show.  


As with the Venom, the existing paint came off very easily, and most of the inappropriate rivets were removed at the same time. Some of the rough looking joints turned out to be very sound once sanded back, such that I avoided needing much filler beyond a smear of Tippex on the port nose.  


The undercarriage was long gone, albeit that the outer gear doors were still attached.  However, this is no problem because FROG didn't provide any undercarriage bays, so "wheels up" it is.


The canopy was a bit more of a conundrum - WG240 had a clear unframed front section and despite my searching high and low to see if she ever wore the flat armoured glass of the later aircraft, it seems she did not.  I couldn't find anything rounded in the spares box that would fit, so the decision was made for me - the mythical XF830 she will be!


Paint, as always is hand-brushed enamel - Humbrol 125 Dark Grey for the topsides (I'm saving my last tins of 123 and the 125 is almost identical) and Revell 59 Sky for the undersides.  Decals came from the spares box and a final satin topcoat sealed everything in.  I’ve not applied any weathering or fine detailing, leaving the kit pristine, almost as a contemporary 1950s desk display model and not pretending to be anything it isn’t!  


As with the Venom, this has been a fun refurbishment of an historic and genuinely antique kit from days gone by.   It’s not as nice a kit as the Venom - less detailing and whilst definitely not a “toy”, it doesn’t really reflect any genuine aircraft. But for a £ each !!!!!   


I wonder what December’s Flea Market will bring?  

 

 

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This is the 2nd of my £1 Flea Market Bargains, an original 1955 mould FROG De Havilland DH110 kit.  As with last month's Venom, it seems to have been built and painted to a reasonable standard, but is showing the ravages of its 50 years of existence.  As before, I wouldn't dare build an original one, but this was ripe for refurbishment and TLC !


This FROG kit was a bit luckier than the Venom as it continued to be released up until 1968, with the "new" Sea Vixen kit replacing it in 1976, just before FROG folded.  No news of the whereabouts of its mould, but since the last issue was in New Zealand, from where a number of moulds were alleged to have been lost at sea on their way to Hong Kong, I think its fair to assume that this one no longer exists!


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Link to many more experimental aircraft models on my Research Pages

For more Sea Vixen/DH.110 models, have a look at my Flight Deck Pages


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Above - the real thing at Farnborough (IWM ATP 21657C)


Below - WG240 undertakes deck landing trials.  Note the rear mounted “frilly” air brakes and the absence of any hook.

 



 

Above - my conversion of a FROG Sea Vixen back into the 3rd DH.110 prototype, XF828