1.75in 2 blade Spinner for a RC Howard DGA-3 Pete

by odie_wan, published

1.75in 2 blade Spinner for a RC Howard DGA-3 Pete by odie_wan Nov 19, 2012
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This is a two piece spinner for a Howard DGA-3 Pete RC airplane. Thought it will work on any 200w range motor with a .25in shaft diameter prop adapter. It's designed around a Master Airscrew 6x4 prop. It's held together by two M3x8mm socket head cap screws.

I am planning on fiddling with the thickness to get the weight down. I will also play with cooling holes. Stay tuned.


Just print the parts out. They turn out well when printed pointing up.

Use two M3 x ~8mm screws to hold it together.

UPDATE: I revised the spinner base and top. They are both now shell designs. I also included cooling holes in the top and bottom parts.
I haven't had a chance to weight the original against the new version.

Update 12-20-12: I took some better pictures of the latest version of the spinner (V3/v6) and weighed it. total of 9 gr w/o the screws. Note you probably want to use v3/v6.

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looking for 2 blade spinner for 9x5 prop, will try this with some scaling.. I need some nose weight so happy for it to be heavy

I can use a spinner with 8mm shaft size, 1.75 inch diameter and I'm using a 8 x 4 prop. If this is fun for you I would appreciate the files for sure! Any change of getting the solid model data. I'm not sure if people do that here or not.

Thank you,


What size do you need? What brand of prop are you running? If you give me some more details, I can whip something up.

Hi, sorry to be late in responding, I have some hobbyking sourced master airscrew G/F 3 Series 9 x 5, (9x6 shown) http://www.hobbyking.com/hobbyking/store/__20282__Master_Airscrew_propeller_9x6_USA_Warehouse_.htmlhttp://www.hobbyking.com/hobby... and a range of APC http://www.hobbyking.com/hobbyking/store/__5440__APC_style_propeller_10x5_E.htmlhttp://www.hobbyking.com/hobby... 10x5, 9x5, 9x6,8x4 props. The APC props seem to be wider at the base of the blade, and also slightly fatter at the hub. I can take some measurements if that helps,

GF 3 series hub thickness 11.9mm, hub diameter 19.7mm blade leading edge to training edge width (measured front on) 14mm at hub end. fairly flat 7mm width 30 degree-ish base of the blade where it attaches to hub.
APC Prop 9x6 hub dia 20.5mm hub thickness 8.9mm. 7.5mm thick blade at base, 15 degrees to rotation plane quite fat, and leading edge flet to front of hub, trailing edge scalloped in. 14mm width blade measured front on to hub.

If you need a different hole size for a smaller prop adapter, let me know. I can whip one up for you.