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Designed by Dumas specifically for small economical electric power systems. up to 2 ounce motor weight is acceptable. Keep in mind this is a very light weight, almost rubber like construction. Because of the very low wing loading, the Waco YMF-5 would be a perfect model for evening flying and large indoor venues. Although ailerons could be built into this model, instructions and dihedral are directed towards 3 channel flying.
Specifications: Wingspan 35 in. 889mm Wing Area 329 sq. in. 21.23 sq.dm. Length 25in. 635mm Weight: 8-12 oz. 227-284g Wing Loading @ 10oz (284g): 4.38 oz. sq. ft. 13.38g sq.dm. Radio Required 3 channel suggested with 6g servos. Battery: 2-3S 400-900 size pack Power Required 25-60 watts Setup and Performance Chart With HiMax Motors, Castle ESC and Radical RC Battery
Motor
# Cells
Prop
Amps
Watts
RPM
Thrust oz.
Pitch Speed MPH
FPM Climb @ Degree
Max Climb Angle
Est Top Speed
Himax 2805-1430
2
7x5
6.6
50
8,130
9
40
764@33
33
27
Himax 2805-1430
2
8x4
7.8
59
7,660
11
29
977@44
44
27
Himax 2805-1430
3
7x3.8
10.3
116
11,930
18
43
1608@60
90
36
Estimates based on manufacturers provided constants using E-Calc. MFG model specifications used in calculations. High Quality 2100mah used as trial cell in calculations. Actual performance may vary depending on components used, accuracy of data as provided by manufacturer, quality of ESC, weather and many other variables.
 "Waco YMF-5 Kit by Dumas")