GWS DX Motor Prop Recommendations
The GWS DX motor system has become one of the most popular power options in slowflight, thanks to the popularity of the Lite Stik and similar aircraft that come with this system, reasonable cost and good performance. Each DX system (A through F) has a different gear ratio, with A being numerically the lowest and E the highest. However, there is a lot of confusion about what prop GWS recommends for each of its different DX systems because their original recommendations have been revised, but many internet sites still have the old recommendations posted. Below is a reproduction of the prop recommendation chart reproduced from the back of the package from a retail DX motor with explanations:
GEAR RATIOS
DXA = 5.86:1
DXB = 7:1
DXC = 8.6:1
DXD = 9.66:1
DXE = 10.7:1
DXF = 11.8:1
PROP IDENTIFICATION
First 2 digits of prop = diameter in inches
Second 2 digits of prop = pitch
PROP RATINGS
3 = Excellent
2 = Good
1 = Fair
0 = Don't Use
PROP A B C D E F
0947 1 0 0 0 0 0
0970 2 0 0 0 0 0
1047 3 1 0 0 0 0
1080 0 2 0 0 0 0
1147 0 3 1 0 0 0
1180 0 0 2 1 0 0
1260 0 0 3 3 1 0
1280 0 0 2 2 2 1
1365 0 0 0 2 3 2
1390 0 0 0 0 2 3
1470 0 0 0 0 0 2
