Regarding H2S and H2X radar

[donkeyking]

which country was H2X radar made in? UK or US

And who can post a mosquito picture for me and this mosquito installed H2S radar?

Thanks

[mhuxt]

which country was H2X radar made in? UK or US

And who can post a mosquito picture for me and this mosquito installed H2S radar?

Thanks

So far as I'm aware, H2S was developed by the Brits, though I don't know if they benefitted from US tech / bits in doing so.

Not sure how H2X differed, but so far as I know it was the US designation for H2S. The Brits never called their own system H2X, only the USAAF.

At least some 139 Sqn Mosquitos had H2X in a painted-over nose, as opposed to the larger blister on the aft fuselage, which IIRC was used right at the end of the war by 627 Sqn.

There's a photo of a 139 Sqn H2X Mossie at this site:

Wing Commander H A Forbes

[Tinplate58]

H2X was the American development of the British H2S; both were airborne ground-scanning radar.Halifax/ Lancaster pathfinders had H2S in a bulge under the fuselage.
H2S was also in a few Eighth AF B-17Fs in late 1943 but installed below the nose ; early H2X units were the same ----known as "STINKEY".
Later it was able to be fitted in place of the ball turrets in Eighth-Fifteenth B-17s and B-24s (as a radome) known as "MICKEY".
H2S and other electronic gear was in RAF Mosquito PR.IXs; Eighth AF had PR.XVIs with H2X in a re-designed nose similar to the "bullnose" on night fighter XIIIs and XXXs (802RG/ 25BG(R) .
The attached is a red-tailed XVI from the 25th at Watton,the small bulge on top of the nose can also be seen on some RAAF Beaufighters.

Nick

[donkeyking]

Great picture, thank you very much

[hartmann]

The H2S differed from H2X in the wavelenght used.
H2 S = S band, It worked in 10 cm of wavelength.
H2 X = X band, It worked in 3 cm wavelength.

H2X was a nightmare for twin engined airplanes because It demanded a lot of power from the engines. it was cause of accidents, and wasn´t all the worth It was intended for (It tended to be frequently jammed by the rain ad snow, a lot more than H2S, and far more than equivalent German radars working in decimetric wavelenght,like "Hohentwiel", almost immune to bad weather).

I hope this can help.
Best regards.

[donkeyking]

What other difference is there except wavelength between H2S MK III and H2X ?

I know US used H2X radar before June 1944, but RAF just used H2S MK III which used the same 3cm wavelength with H2X in Dec 1944.

[hartmann]

Hello donkeyking

What other difference is there except wavelength between H2S MK III and H2X ?

I know US used H2X radar before June 1944, but RAF just used H2S MK III which used the same 3cm wavelength with H2X in Dec 1944.

Unfortunatelly, I don´t know exactly the difference. I think that it was more of a designation problem between US and British nomenclature, than really a big difference between both sets. I will try to find something more in books and documents.

Best regards

[donkeyking]

I hope you can help me to find some information about manufacture information for H2X

Thanks again and good luck to you.