Subject: [FlyRotary]
Re: air flow, induction air scoop
I don't understand how a 13B can flow 277.77 cu ft/min
at 6000rpm, while a 20B flows 275 cu ft. min.(Al's numbers), unless the 275 cu
ft figure is for 4000rpm instead of 6000 rpm. Using Ed's formula, I get
416.67 cu ft/min at 6000rpm, or 31.66 lbs/minute. Which number is
correct?
Mark S.
Mark;
I guess you didn’t read the
intervening postings where I admitted I had made a mistake. Apparently I
computed for 2 rotors instead of three.
Al