Any word on electric MTV-17?
Lycoming, Continental, Hartzell, McCauley, or any broad spectrum drive system component used on multiple type.
Sat Apr 18, 2026 11:54 am
Anyone flown it, own it, or heard anything?
Electrically controlled constant speed prop.
Thanks!
Dan
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Ace007 offline

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Sounds cool. Would be a nice option for those with solid crankshafts.
Has there ever been an electrically-controlled variable pitch prop for any certified aircraft?
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Zzz offline

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I think the earliest Bonanzas were equipped with electrically adjustable props that evolved into a true constant speed mechanism. But I’ve not seen one. Just read about them.
https://www.bonanza.org/globalassets/mi ... ration.pdf
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Belloypilot offline


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Ace007 offline

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Looks like one of those rare instances where it’s approved on cubs in another country but not the USA.
I’m very curious how it’s controlled, a rheostat on the panel and slip rings like an electric deice boot? How much current does it draw? Is it a true constant speed or an inflight adjustable pitch?
Interesting…
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Halestorm offline


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There are a couple FAA STC’d electric props (look for the MTV-18) for a 172 and PA-28.
I’m thinking about buying this for my new 175hp O-300.
Talked to a guy who flight tested it and was offered a field approval but wanted an STC.
One controller version has a constant speed function. Uses brushes.
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Ace007 offline

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Sun Apr 19, 2026 10:29 am
Let's say there's an STC for the MTV-15 on your bird, but none for the MTV-17, so you decide to try for a field approval using data from the -15, or similar approvals of the -17 on similar airframe/engine combos.
Chance of success? How useful is EASA data in a FAA field approval?
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Zzz offline

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Electric controlled prop is available by STC for Grumman Tiger O-360 engine.
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48Stinson1083 offline

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