On Wed, 28 Apr 2004 12:26:42 +0100, David wrote in message
> On 4/19/04 at 11:12 PM Vivian Meazza wrote:
> >All you ever wanted to know about a Merlin with 2 speed, 2 stage
> >supercharging is here:
> >Except exactly how the boost contol valve worked :-)
> Nice link!
> I've found a reference describing the BCV mechanism ("Thrust for
> Flight" by W. Thomson), apparently it consisted of a stack of metal
> aneroids that contract under increased pressure. This makes perfect
> sense - it would measure absolute pressure, and I believe is similar
> to the mechanism used in many barometers.
..search these for "aneroid".
http://www.unlimitedexcitement.com/Griffon Budweiser/Rolls-Royce Griffon
..med vennlig hilsen = with Kind Regards from Arnt... ;-)
...with a number of polar bear hunters in his ancestry...
Scenarios always come in sets of three:
best case, worst case, and just in case.
Flightgear-devel mailing list