Kitfox Series 7 Rotax 915 iS Update
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Kitfox Series 7 Rotax 915 iS
As many of you have figured out we are working on the firewall forward package for the 915iS. We have 1 of 3 915iS prototype engines available and working on a mock-up airframe to determine many things.
We were concerned we would need completely new cowlings and possibly a completely different setup. Rotax made some changes from the 912iS that complicated the install.
The Turbo is larger, the exhaust is much larger, a larger oil cooler and unlike the 914, the 915 REQUIRES an intercooler.
Kitfox Series 7 Rotax 915 iS Aircraft Images
We have been able to make some small changes for most the install but needed to make a custom intercooler and ducting to the intercooler.
The firewall forward should use Teflon hoses due to the tight routing.
Currently the engine requires a hydraulic constant speed prop. The only one available is MT.. that will change fairly quickly as there are others working on props now. The single lever control is a topic for another post.
We are now removing the Titan 180 hp from the STi in preparation for the 915. If all goes well we should have an engine run close to the end of the month.
The Titan has been a solid engine with great performance and I would not hesitate to use this engine as the Lycoming/Continental alternative engine for the Kitfox. Continental Motors (John Heitland specifically) has been great to work with.
The complete Titan firewall forward and engine are now available if anyone is interested. Contact us directly for pricing.
We’re looking forward to flying the 915!
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