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Largest blades

Old 12-04-2021, 12:42 PM
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Dana W
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Default Largest blades

Which helicopter has the biggest blade?
Old 12-04-2021, 05:35 PM
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resourcecapital
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H-17
134 feet
i know its not what u are really looking for but it is a correct answer to your question.
Old 12-04-2021, 06:58 PM
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Dana W
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Lol thanks but I mean R/C helicopter.
Old 12-04-2021, 09:57 PM
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resourcecapital
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i knew that but could not resist.

i have seen a gasser that had almost a 4 ft rotor diameter. it weighed in about 35 lbs.

it was modeled after a korean war mash chopper.
thing was huge and flew great.

Old 12-07-2021, 06:52 PM
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Dana W
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Wow that's big. Thanks
Old 12-21-2021, 09:19 PM
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MT-Propeller, a natural composite propeller manufacturer, has received an FAA STC for the installation of a 3-blade hydraulically actuated constant speed propeller on Diamond DA42 twin engine aircraft.

The new propeller provides the DA42 with an enhanced ground roll and takeoff distance, as well as improved climb performance and smoother cruising.

The MT-Propeller can be installed on Diamond DA42, DA 42M, DA 42-NG, and DA 42 M-NG aircraft that use Technify Motors GmbH TAE 125-01, TAE 125-02-99, and TAE 125-02-144 engines or Austro Engine GmbH 4E-B.

Advantages of the new propeller installation include vibration damping characteristics, no engine modifications, reduced ground roll and takeoff distance, improved climb performance by 10%, and more speed.

The 3-blade propeller has an unlimited life and is FOD repairable.

The propeller installation is also certified by the EASA and TCCA Canada.
Source: Globalair.com
Old 12-21-2021, 09:21 PM
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Alan Carr
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Originally Posted by Dana W View Post
Which helicopter has the biggest blade?
The most blades I've seen are 8 on the Mi-26. But the highest theoretical lifting efficiency is achieved with the fewest blades and experiments have been done with single blade rotors (with a counterweight - there were vibration problems that couldn't be resolved).

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