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GM 16x8 Folding prop blades

Product Code: GM16X8
 (14 reviews)

Price: $35.07

5 in stock
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Description

A pair of very high quality GM 16 x 8 folding prop blades, suitable for HyperFlight's and other makes of folding prop yokes and spinners.

These blades are thinner (they have a higher aspect ratio) than normal folding propeller blades, allowing larger diameter blades to be fitted without pulling too much current. This increases the propulsive efficiency of the powertrain. They are also engineered to fold closer to the fuselage, and cause less drag when folded than other props. See photos 3 and 4 for a visual comparison of GM, RF and Aeronaut props, kindly produced by Andre Jeber Demetrio.

Note this product consists of two carbon propeller blades only. The central spinner/yoke assembly is not included. Also it is common for prop blades to not fit all spinner/yokes perfectly as supplied. It is often necessary to reduce the width the blade root slightly to ensure free folding movement. Also the cut out in the spinner cone often needs to be increased to allow the blades to fully extend. The root of the blade should not touch the spinner cone when the prop is fully opened.

GM 16x8 Folding Propeller Blade Specifications
Prop diameter 41 cm 16 in
Prop pitch 20 cm 8 in
Weight of 2 blades 11.4 g 0.40 oz
Width of blade root 7.95 mm 0.313 in
Hinge pin hole dia 3.0 mm 0.118 in
Max power 2000 W

Reviews 14  


 Review by:

nice blades, perfect fit, fast delivery


 Review by:

nice blades, perfect fit, fast delivery


 Review by:

excellent quality, great service


 Review by:

Very nice work. Used on Powerline Micro 1015 Turbo in Maxa 4E Pro Megalight, gives a very clean nose profile when folded and great performance. Many thanks to Neil for recommending these - there is a reason why Hyperflight enjoys such a good reputation for customer service!


 Review by:

GM 16 x 8 Folding prop blades.

Very good product and great service


 Review by:

Beautiful performance


 Review by:

GM Prop Blades

Simply the best blades and as always the best service.


 Review by:

Great prop on my Perfections.
Performance with a schambeck 1025 is more than sufficient and a much nicer fit on the fuse than the rf 16x8,5 small!


 Review by:

Very prompt delivery, as usual from Hyperflight. I normally use aeronaut blades, so, at more than 3 times the cost, I was pleased to find a considerable improvement in performance from these blades, though obviously not a 3 fold improvement !
A good performance upgrade.


 Review by:

GM prop blades

it's hard to review prop blades in the middle of
Dec.. They look great, fit well, and fit the Maxa
well. Running them in the shop is not a fare
test, but in the pacific NW it is what it is.
They arrived shortly after I ordered them, great
service.


 Review by:

Simply the best.


 Review by:

Fabulous. Half the mass of equivalents, with better performance, and the neatest tuck along the fuselage in most models. Drag is much reduced, my Supra is virtually silent on glide.

I am disappointed that they do not suit my Kappa, but that is because of the peculiar shape of the plane at the nose of the fuselage. Perfect on my other models, though.

And they look cool!


 Review by:

Used with the Powerline 1025 motor, instead of pulling 45 amps as expected using these blades the motor is only pulling 35 amp. mounted in a Kappa 35 at 1400 grams flying weight it climbs to 150 metres in 15 seconds.
highly recommended.


 Review by:

EXCELLENT PRODUCT

This prop is a great product. The profile is very slim and it sure aids minimizing parasite drag on your glider.
It is also about half the weight of other similar size props!
I was expecting to get higher amperage out of this prop so perhaps it is a good idea to buy one with a coarser pitch that the one you are already using.
Overall, very satisfied!


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