re:
" Full throttle use was
> available for shortly over a 30 second burst and snapped a wire strung
> across the throttle quadrant"
AKA "War emergency power" *
http://en.wikipedia.org/wiki/War_emergency_power
* like when an Me-109 was right on your tail.
The Merlin was built under license by Packard for P-51s. Packard reduced the
original 400+ variations of nuts, bolts and screws to a few dozen standard
sizes.
bs
--------------------------------
Bob Spidell - San Jose, CA
Wow! Is that what present day owners have to do? It would make owning a
Spitfire or Mustang (same engine) VERY expensive. As if just buying one was
not expensive enough!
Mike MacLean
60 Sprite
56 BN2
On Mon, Jan 25, 2010 at 6:09 AM, Guy R Day <grday@btinternet.com> wrote:
> Interesting little snippet from Federal Mogul that they have found that
> re-melting cast alloy piston centres (DuraBowl technology) reduces the grain
> size of the alloy and silicon particles resulting in a cost effective
> stronger and more thermally resistant piston. The immediate future is for
> diesel engines but - who knows?
> Another snippet for those who care - the Merlin engine (Spitfire) was
> removed, serviced and rebuild every 40 hrs under normal service and EVERY
> time full throttle was used, no matter how long for. Full throttle use was
> available for shortly over a 30 second burst and snapped a wire strung
> across the throttle quadrant to show the ground crew it had been used. Water
> injection was not used for decokes!!
>
> Guy R Day
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