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Yamaha Snowmobile engine conversion

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cblink.007

Well-Known Member
Joined
Jul 7, 2014
Messages
589
Location
Maryland, USA
I have recently been reading alot about the Yamaya RX1 & Apex conversions, and very successful applications so far.

I spoke to the folks at Mohawk Aero Craft. More power, more torque, slightly lighter and better fuel efficiency than a Rotax 912....and offered at $10k! Is there a catch?

I am personally looking for legit feedback on these engines. I want to know more, and see if it would be a genuine alternative for my design!
 

Marc W

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Joined
Mar 31, 2017
Messages
628
Location
Colorado
Have you been to the "Yamaha Aircraft Conversions" group on Facebook? There is a lot of information there from folks who have done successful conversions. Mohawk does not have the best reputation in the business.
 

cblink.007

Well-Known Member
Joined
Jul 7, 2014
Messages
589
Location
Maryland, USA
Mohawk does not have the best reputation in the business
How so? Just curious. Who is the best one in your opinion?

Engine selection is critical, and we want to make the best choice!

We will take a look at the FB page...thx!
 

JohnB

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HBA Supporter
Joined
Aug 18, 2019
Messages
84
what airframe is the engine planned for?, I'm at 54T (RWJ Airpark) and putting one (APEX) in a 701. Got lots of info, gimme a note if you like and we'll chat JB
 

TarDevil

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Joined
Jun 29, 2010
Messages
814
Location
Coastal North Carolina/USA
By appearances it seems the Yamaha is becoming not just viable but the better solution for certain lightweight power applications. Some good minds are packaging systems (Props, PSRU, Exhaust). Are we overdue for a dedicated Yamaha Discussion area?
 

cblink.007

Well-Known Member
Joined
Jul 7, 2014
Messages
589
Location
Maryland, USA
By appearances it seems the Yamaha is becoming not just viable but the better solution for certain lightweight power applications. Some good minds are packaging systems (Props, PSRU, Exhaust). Are we overdue for a dedicated Yamaha Discussion area?
I think so... I keep hearing nothing but great things.

This is the data sheet provided to me from Mohawk Aero:
 

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cblink.007

Well-Known Member
Joined
Jul 7, 2014
Messages
589
Location
Maryland, USA
Just out of curiosity, does anyone here either have CAD drawings of this engine and the mount?

Does not need to be super detailed; 2D is fine...and good enough to plot structural mounting points and figure out bodywork shaping & clearancing!

Also, what dimentions are you guys looking at for the radiator(s)? I'd like to figure out where to place it...and work some induction & cooling drag numbers!

Thanks, gents!
 
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