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Throttle boxes, who made them?

Hi all,

I was recently told that the throttle boxes used in British aircraft were made by outside contractors other than the aircraft manufacturer itself. Any ideas which company made these? Or were there more. Of course I am after the manufacturer of the Halifax throttle boxes.

682al, perhaps you know about this having a more than general interest in throttle boxes 😉

Cheers

Cees

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By: HP57 - 9th January 2005 at 19:23

Well,

A quick search on the net found this site with a very interesting history of the company. It was taken over by Lucas Aerospace Ltd. in the seventies. Mmm familiar name, IIRC they also took over a certain company that made power operated aircraft turrets.

www.localhistory.scit.wlv.ac.uk/Museum/Transport/planes/hobsons/hobson01.htm

Time to ask some questions here and there.

Cheers

Cees

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By: HP57 - 9th January 2005 at 12:15

Thanks Mark12 and 682al for your responses.

I know Claudel-Hobson for their carburettors but never knew they made throttle boxes as well.

At least it’s a start and I will dig deeper into this. Who knows.

Cheers

Cees

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By: Mark12 - 9th January 2005 at 11:42

Cees,

From ‘SBAC – The British Aircraft Industry – 1939’.

Mark

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By: 682al - 9th January 2005 at 10:07

Hi both,

Firstly, Cees, my earlier reply was a bit rushed as I was getting ready to go out. Claudel-Hobson is, I think, the Trade name for the Company’s products and it’s usually to be found on the casting. The firm is (was) H M Hobson and their adverts appeared regularly in wartime editions of Flight, etc. When one turns up, I’ll scan it for you.

Peter, I’m not sure about the Stirling. The early aircraft had the Exactor controls. These were hydraulically operated (and problematic). The Sunderland had them, too. By the time that the Stirling Mk. III came out, the controls had changed to good ol’ cable in guides and pullies, like the Halifax.

As I said before, though, I don’t know whether the Halifax box was designed by Hobson, and it’s the same for the later Stirling – sorry!

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By: Peter - 9th January 2005 at 01:13

682al
Was it Hobson that made the throttle box assembly for the Stirling or am I thinking of something else??

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By: 682al - 8th January 2005 at 19:25

Not sure about tha Halifax throttle box, but Claudel-Hobson made many different types.

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