1、-.e 1oII 2 00El ZmmY, ,- - “ -= -=-XiaR+=./25wY. .- - - - -.- - - - -F1 .+.208Y*- - -+=.29/.Figure 6.- Sketches of model showing propeller-overlapconfiguration.All dimensions are in inches.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NACATN 4404 1
2、9I I I Iv 1 I I Ixt$Q400 J .2 .3 4 .3 .6 ? .8 .9 10Radius ram, $jRFigure 7.- Propeller blade-form curves. NACA 16-series section.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-20 NACA TN 4404Inboufd propellerf,s)0 80On/yo 8f, # =0a * = -0.01; ;= -0.
3、104; 5f,F, variable;full-span flaps. .dProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NACA TN 4404.21.MyTO20-.2c /0 20 30 40 50 “60 70/%p def Iection, AC, deg(b) Pitching mcment.0 10 20 30 40 50 60 70Flop deflection, 8 v=ia. #DProvided by IHSNot for
4、 ResaleNo reproduction or networking permitted without license from IHS-,-,-NACA TN 4404.ftap deflection ,%f, , deg(b) Pitching mnt.23Flop de flection,8f, rJdeg(c) Thrust-recovery factor.Flap dDY_ = -0.01; bf,s = 30; bf,F, variable; full-span flaps.D .Y.Provided by IHSNot for ResaleNo reproduction o
5、r networking permitted without license from IHS-,-,-NAC!ATN 4404 25Flap de flection,f, , deg(b Pitching mcment. o /0 20 30 40 SO 60 70Flap deflection,8f, , deg(c) Thrust-recovery factor.Flop de flectionf, , deg(d) Turning amgle.Figure 10.- Concluded.Provided by IHSNot for ResaleNo reproduction or ne
6、tworking permitted without license from IHS-,-,-26 NACA TN 4404.Propeller position Ik150/ /-+10 80(a) Summary of turning effectiveness.Figure 11.- XEffect of vertical displacement of propellers. - = 0.500;DY-= -0.01; bf, = 50; ,F, vuiable; full-sp= flaps.DProvided by IHSNot for ResaleNo reproduction
7、 or networking permitted without license from IHS-,-,-NACA TN 440k 27F-7.sb%o 10 20 30 40 50 60 70,Flop de f/ection,8 , deg(b) Pitching moment.o 10 20 30 40 50 g 7tiFlop deflection,f degI.(c) Thrust-recovery factor./%7p d(?f/CtkV?,8f,6egeg.(d) Turning angle.Figure il.- Concluded.Provided by IHSNot f
8、or ResaleNo reproduction or networking permitted without license from IHS-,-,-Propeller position7 IIL,8.64.2G= $LT1 1 1 I I I , I 1 1 r. .2 # .6 .8 /go”oo(a) Summsry of turning effactiveness.12.- Effect of vertical displacement of propellers inFigureof ground effect. = 0.500; = -0.01; % s = 50; bf F
9、) )ground-bosxdangle, 32; full-span flap; h/D, variabti.the region= ;a71a15Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NACATN 4404 29A#(b) Pitching mcment.(c) Thrust-recovery factor.(d) Turning angle.Figure 12.- Concluded.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
