Re: boat propulsion - miniature computer-controlled steam plant?

On 11/03/2024 13:30, Jim Wilkins wrote:

"Peter Fairbrother"  wrote in message news:usl1ga$34frv$1@dont-email.me...
>
A story I heard, don't know whether it is true or not, is that just
before WW2 the British Government ordered Excel to make lots of BCAs.
Excel (or whoever) then continued to pay design royalties to
Boley/Leinen right through 1940. Ouch! Postwar, the design rights were
considered  to be spoils of war.
>
Peter Fairbrother
>
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The US paid the German manufacturer DWM $412,520 in 1928 to settle a patent dispute over features of the Springfield rifle taken from the 1893 Mauser.
https://www.milsurps.com/showthread.php?t=15846
>
I've read but can't find where that Britain and Germany both bought 20mm aircraft cannon from Oerlikon, all with barrels made from German steel.
>

I was watching a program the other day about the restoration of a Spitfire in the Shuttleworth collection IIRC and they mentioned it being fitted with a 20mm cannon to match what the Germans used and they mentioned it as Hispano Suiza, maybe this one https://en.wikipedia.org/wiki/Hispano-Suiza_HS.404 .