08.04.2010, 00:54
I guess in my head, i'm thinking the steeper you climb the less the wing helps in lifting the aircraft against gravity.
So the steeper you climb the more thrust is required to achieve the same height as you might at a shallower angle. I don't think displacement is the same.
I think in the context of the test, the optimum angle of climb does not change much from 1500ft to 10,000ft.
Actually, Ace this speed is determined more out of engine efficiency than anything else. The plane may infact climb steeper at 140IAS but would not be an efficient use of fuel or power. Furthermore, it may not actually increase the rate of climb at all, so climbing steeper would waste fuel and engine life with out any gain.
There are several German tests on the 109 for determining the appropriate angle of climb and much of the discussion involved airspeed because it helped keep the engine cooler.
Bill
So the steeper you climb the more thrust is required to achieve the same height as you might at a shallower angle. I don't think displacement is the same.
I think in the context of the test, the optimum angle of climb does not change much from 1500ft to 10,000ft.
Quote:The reason it is so close to a constant is that the best climb speed tends to be slightly above the stall speed.
Actually, Ace this speed is determined more out of engine efficiency than anything else. The plane may infact climb steeper at 140IAS but would not be an efficient use of fuel or power. Furthermore, it may not actually increase the rate of climb at all, so climbing steeper would waste fuel and engine life with out any gain.
There are several German tests on the 109 for determining the appropriate angle of climb and much of the discussion involved airspeed because it helped keep the engine cooler.
Bill