Propellor Selection

I have a Sensenich Model 76EM8S5-0-60 that I inherited from a friend.  Will this be an appropriate propellor for the CH750 Cruzer?  I am leaning towards a Viking 130 HP motor when plane is ready for power.

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Permalink Reply by Bob Simmons on August 10, 2023 at 1:00pm

Not sure of bolt patterns, diameter, rotation, etc., but you better have pretty big tires to swing a 76 inch prop on a Cruzer.

Permalink Reply by John Bowers on August 10, 2023 at 9:23pm

I understand.  I'm a complete novice here, it being my first airplane build.  I won't be ready to mount motor and propellor until probably March 2024, so I have plenty of time to learn the critical details such as what you're pointing out to me.  Really appreciate your input.

Permalink Reply by Jan Eggenfellner on August 12, 2023 at 7:15pm

Typically we use a 3 blade DUC propeller or Whirlwind - we use a bolt pattern like the Rotax 912. The Cruzer will typically use a 70-71" propeller with the Viking 130, unless you are doing a big tire Cruzer setup - then 75"

Permalink Reply by John Bowers on August 13, 2023 at 1:59pm

I will likely follow your lead with the 3-blade prop on the Viking 130HP.

By the way, I saw a YouTube video from Viking suggesting a new GM motor plant, from the 2024 Chevy 3 cylinder turbo engine in their new car.

Permalink Reply by Carl Orton on August 15, 2023 at 10:01pm

FAA requires 7” from prop tip to ground. I had to send my prop back to Sensenich to have them trim it 2” (1” each tip). 

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