Quote:
Originally Posted by pstyle
OK, So I've decided to test this little suggestion from Thomas Voss of Desastersoft:
I flew a spitfire 2a, with 50% fuel.
I've carried out testing at three altitudes >250ft, 5,000ft and 10,000ft.
I tested the airspeed at 2400, 2600 and 2800 RPM at each altitude.
Boost pressure was ALWAYS adjusted to read +5 in each case.
All tests were carried out with 100% open radiator
All speeds are indicated, at straight and level flight.
The ONLY variable was this - one test 1 I opened the radiator before starting the engine. In test 2 I waited until I was nearly airborne before opening the radiator.
SPEED test results:
http://postimage.org/image/mqaksad1v/
For me, there is NO obvious speed improvement resulting from opening the radio before engine start in the 2a. |
hiya Pstyle,
seems pretty conclusive, absolutely no change
thx for comparing it and posting the results
__________________
President Dwight D. Eisenhower 1953: Every gun that is made, every warship launched, every rocket fired signifies, in the final sense, a theft from those who hunger and are not fed, those who are cold and are not clothed. This world in arms is not spending money alone, it is spending the sweat of its laborers, the genius of its scientists, the hopes of its children
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09-18-2012, 03:29 AM
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