> But let's say you can climb the thing at 1000FPM and 100KIAS. That takes you an hour (covering roughly 250 nm?) to hit 65,000. If you spend an hour at cruise and then come down at 2000 fpm again covering 150nm ... you've just taken 2:30 block to go 900nm. What market does that make sense in? Might make a great autonomous cargo bird for Fedex.
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> People spending 5 million on an airplane do not care about $180 of fuel difference per flight, and also that is only at altitude. If the climb rate of that airplane is 1,000fpm, which seems optimistic, it would take nearly an hour to get up there. If you are going on a 2 or 3 hour leg, fuel burn could be the same or worse.
https://www.beechtalk.com/forums/viewtopic.php?f=49&t=174467...
Longer analysis video: