PPRuNe Forums - View Single Post - Upgrading Rotax 912UL (80HP) to Rotax 914UL (115HP), experience anyone?
Old 12th Apr 2011, 14:10
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Ultra long hauler
 
Join Date: Aug 2010
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Originally Posted by mmbengt
On Aircraft - Home you have all the information you need about fuel consumption etc for the 912 ULS and 914.

I have a 914 in my Dyn'Aéro MCR-M and I see typically exactly the same fuel consumption as with the 912 ULS except for the few minutes during take off where I use the turbo. I have not yet investigated the high altitude performance though.

Best regards
/Bengt
Thanks, nice low winger--> I googled her.
I compared the 912ULS & 914UL´s fuel consumption graphics……..and at 5500RPM they are as good as identical.
After the 5500, the 914´s consumption sky-rockets, for obvious reasons.

Yesterday I got feedback from a local friend of mine though that the overall consumption of a 914 at the club is 33% more than the 912ULS, but flying faster; the difference is realistically 28%, approximately…………

Still quite a lot………..and this goes against the Rotax graphics, assuming you cruise under 5500RPM; only using the Turbo for take off´s or high altitude action.

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