Floatplane Homebuilt Murphy Moose with Yak M14PF Engine

The M14P family is certainly one of the Worlds legendry aircraft engines, to a certain extent because of its exceptional record in world-class russian aerobatic competitions, but also because of its charismatic noise and high-power output for its weight. As the only radial engine still in production, it also has a great deal of historical interest.

(MGigabiteM comments You might want to change the info "the only radial still in production" is incorrect. Rotec in Australia makes two radial engines; the R2800 and the R3600 which are 7 and 9 cylinders with 110 or 150 HP.)



The Russian National Team began asking for more power and the result was the M14PF in which the power is increased to 400hp by changing the supercharger gearbox so that the supercharger is turned at 10.5 times engine speed rather than 8.25. This therefore uses the same supercharger and other systems, but turns the supercharger impeller at an extremely high 30,000 rpm in order to produce the higher levels of boost necessary for greater power.

The PF engine is now well-proven after some 15 years in service. In- service testing was done with the Russian National Team and the engine was principally used in competition aircraft, such as the Sukhoi, but now has much wider application in other Yaks. The PF is now cleared up to 500 hours TBO, with the only proviso that the normal 100 hour checks are done at 50 hour intervals.The only catch offered by the Murphy Moose over the deHavilland Beaver is that it is an experimental airplane, thus it is assembled by homebuilders. It is not offered in a certified, factory built version. If one does not want to tackle building a Moose, then one is limited to buying one already built by someone else. While there is nothing inherently wrong with amateur built aircraft, one is well advised not to wander into this arena without quite a bit of knowledge about the builder and the way in which they built the aircraft.

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[volouro]

Delta lake?!?Rome NY?!? Sweet! I'll be watching for that airplane on the lake! Love the sound of the M14s.

[angelica14709]

Yes Rome, NY Delta Lake.

[angelica14709]

Charismatic noise and high-power output.

[HOMeSKILiT24]

Can I have a ride? Thats a nice sound!

[stretch34318]

talk about 20 questions, he is getting drilled.

[ljubisa88]

which type of fuel do you use??

[norseman7088]

Murphy Moose

[bsg1206]

What is the name of the aircraft?

[saywhat88]

Gorgeous.I see five or six different planes in the design.Bravo!

[GGigabiteM]

You might want to change the info "the only radial still in production" is incorrect. Rotec in Australia makes two radial engines; the R2800 and the R3600 which are 7 and 9 cylinders with 110 or 150 HP.

[hangarrat101]

beautiful eninge, but 500 hours TBO seems ridiculously short. I'd sacrifice the extra 40 hp and go for a P rather than a PF.