I always thought max range was calculated at L/D airspeed.  I don't think, historically, it's been done at 65% power.  Besides, max endurance has nothing to do with distance, it has to do with *time* aloft.  Max range is a no-wind DISTANCE, while max endurance is a max time.  I may be wrong, but that's how I've always thought of those terms.

Thoughts?

Walter


On Apr 19, 2005, at 7:06 AM, Matt Hapgood wrote:



Can someone explain to me if this makes sense (Max endurance has greater
range than max range)?  Conceptually this doesn't make sense to me...

The data is from Lancair Production website for the 400.

Cruise Data
 Max Power Speed (FL180) . . . . . . . . . .  230 KTAS  (265 mph)
 Max Recommended Cruise Power Speed (FL25) .  235 KTAS  (270 mph)
 Max Range (65% Power, FL180, 200 KTAS). . . 1071  Nautical Miles*
 Max Endurance. . . . . . . . . . . . . . .. 1320  Nautical Miles*



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