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Koch Chart Formula
On 2006-08-25, abripl wrote:
Your function was for Da = f(Pa, T) which in turn require various approximations to get takeoff distance and climb performance - not a finished product. Jim's formula were correct. The Koch chart, itself, contains no takeoff distance and climb performance. It is merely a translation, if you will, expressed in chart form of density altitude given pressure altitude and temperature. Any additions to any Koch chart, such as TO distance or climb performance, _are_ additions and may hold true for only for certain classes of aircraft. Generally what you see in charts with those additions might have been created and would probably work for the typical SE general aviation plane. To this extent they may be very useful and helpful. But, again, they are _not_ part of the Koch chart, they are _additions_. ....Edwin -- __________________________________________________ __________ "Once you have flown, you will walk the earth with your eyes turned skyward, for there you have been, there you long to return."-da Vinci http://bellsouthpwp2.net/e/d/edwinljohnson |
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