Quote:
Originally Posted by FLYBOYJ  YEP!!!!
Folks - been reading this thread and observing interesting discussion, but I'm gonna throw my 2 cents in here...going to get 7 minutes to 20,000 feet at best rate of climb (Vx) - period. ....... |
Just to make sure we have the correct $ .02, VX is best ANGLE of climb - best Rate of climb is Vy.
From WMAXT's post:
...This is true, the POH is designed to be achiveable by any aircraft on the line with an average pilot. BTW thats why I added the note on the graph it is almost identicle to the POH for the P-38J/L in military power. Remember to, the POH does not include WEP numbers probably because they can vary so much.
//Quote:
Originally Posted by FLYBOYJ
If tests were done at places like Wright Patterson that got different data, someone felt it wasn't significant enough to place in the -1.....
Actualy, I belive, in many cases it was factored in to create the average for the POH. Something else that must be considered is air quality - density, moisture content ect. the chart above being performed by Lockheed will be on the west coast where ideal flying conditions exist. Many of the AAF tests were at Eglin Field where conditions vary wildly and humiditity is on the average higher than other locations. With the P-38 or other turbocharged aircraft this can affect turbo speeds and effectiveness greatly. // Endquote.
Shouldn't make a difference where tests are done. The chart posted doesn't take into account atmosphere, but shows altitude. This will be Density Altitude. The pilots should be calulating Density altitude and applying the charts as appropriate.
Cheers
Bruce.
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