Hey TD can you look again at the Corsair..

[horseback]

Here is the final (and complete) set of charts for 10,000 ft/3000m.
I’ve re-organized and re-formatted the charts, so that the basic data is below the chart. Remember that the longer and flatter the curve, the faster the acceleration.

A few things to remember; weight vs power should govern the curve at the lower speed range and as speed increases, the effect of drag increases exponentially and eventually becomes the primary limiting factor. A heavy aircraft may not accumulate speed as quickly, but I expect that once achieved, it should not shed it quickly and that the greater weight will add momentum in the higher ranges so that minor changes in level flight will have somewhat less effect, and even less effect if the flat plate drag is low. I have the (general) US fighter drag and weight to power data from America’s Hundred Thousand, but I haven’t found the data for the Spitfire or other aircraft, and I would love to get that.

Those desiring specific comparisons may PM me and I’ll be glad to make a chart or send you the data.

I’m taking this program to the main forums; I’ve started doing the sea-level (100m) testing, and plan to take series at 5,000 ft/1525m, 15,000/4600 and 25,000/7600 to satisfy my own curiosity and hopefully encourage some debate about not only the raw speed data, but how the depictions of the cockpit instruments and the trim model affect how you fly issues.

cheers

horseback