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Old 01-13-2020, 11:58 AM
ten4teg ten4teg is offline
Join Date: Nov 2006
Location: Kenly, NC
Posts: 277
Default GT Propellers??

Anybody heard of or used GT Propellers on a RV?
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Old 01-13-2020, 09:05 PM
VA Maule VA Maule is offline
Join Date: Apr 2016
Location: Bucking ham, Virginia
Posts: 187
Default GT Propeller

Brain Kelley ( flyboy Kelley on here) put one on his RV-8 for the electric constant speed to work with the Rotec 9 cylinder radial . A search of his build should get you some info about it.
Maule MXT-7(daily flyer)
Lancer 235(partner)
Raidial RV-8R Ephanage Done, Wings Done, Fuselage on it's tall Grove gear & engine hung
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Old 01-16-2020, 10:35 AM
dilamipo dilamipo is offline
Join Date: Jan 2010
Location: Italy
Posts: 25

Dear Vansairforce members greetings from Tuscany Italy

After 3 years of intensive work finally my RV7 with one Lycoming O360A1a ,180 HP driving a constant speed prop and analog avionics had airborne on the 25th of March.
After the first flight of about 20 minuts little cruise and some touch and go were made. All went well.
The performance noted solo and half fuel are :
Take off distance about 100 meters,330 ft.
Climb rateo 2000 FT @ 100 kts
Economic cruise was 160 kts @ 2300 rpm,23 MAP.

The prop I have adopted is the Hartzell HC2YK upgrade with wood composite GTV24HY blades.
Company suggested 73” diameter.
Compared the original stock Hartzell the GT blades reduced weight of about 10 kg,20 pounds with very low inertia moment. Much appreciated on take off !!
Very smooth, expected dynamic balance by factory shortly.
See company link,

I’ll be more precise in performance after next flights.

Thanks Umberto and Vans for this fantastic aircraft.

*******check the link below for my second rv7 with my second tonini prop**********
Dimitri Paolacci

RV7 tip up sold

RV7 slider flying!!!

Last edited by dilamipo : 01-16-2020 at 10:39 AM.
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