Pigs. 3,4,5 N.A.C.A. Technical Memorandum No. 727 flight path slope obtainable I'/qo1 in degrees with the horizontal Forward flight Backward flight 40° 50° … Figure 4. P A / *n=0 - F< AV —> vi **— AH K between 3 tt/2 K =3 tt/2 R between tt and 3 tt/2 and 2tt Vn always speed of aircraft. Figure 5.
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