Hey guys

A couple of months ago I was asked to do a review on the ExtremeFlight Yak 74" ( http://extremeflightrc.com/html/74yak54.html ) and Brillelli 46cc gas engine ( http://www.brillelli.com/brillelli_010.htm ). The complete combo can be found at http://www.brillelli.com/brillelli_012.htm

This plane was actually already built and put together by aerobob, but unfortunately he could not complete the review and I was asked to complete it. The plane was disassembled and shipped to me. I have take a bunch of pics myself during engine mounting as well as radio gear install and teh fuel tank install. RCU and Mike East have been nice enough to allow me to use some of Mike's pics from his review of the EF 74" with an OS 1.60 so I can outline the build visually. Thanks guys!

The plane itself has been completed now for I would say 6 weeks.. it has made it to the field once so far and I discovered el. servo issues which turned out to be a flawed motor in one of the servos. Unfortunately the weather has not cooperated ever since and I havent had a chance to bring it to the field since. Hopefully I will get a break here and the weather will drop the winds down and bring out some sun for a change. In the meantime I thought I would start the thread and start sharing some pics of the review.


More often then not now adays with servo technology advancing you see a lot of people throwing 250+ oz servos in all their planes. Nothing like that is needed for a plane this size and in my opinion it's not really worth spending $500 or $600 in servos for a 74" plane. I am not saying the servos are not worth it.. but it's rare to see a review that is done with the "guy on a budget" in mind. Therefore I decided to use quality metal gear servos but not the top of the line digital servos.


Plane Equipment:

4 x Hitec 645MG for Al and El (133oz at 6v)
1 x Hitec 5645MG for Rudder (168oz at 6v)
1 x JR standard on Throttle

1 x NoBS 1400 6.0 for servos
1 x NoBS 1400 4.8 on ign

2 x Cermark DSC switches on radio and ign.

1 x Futaba 138 PCM reciever

16 oz standard tank with proper gas stopper

Brillelli 46cc gas engine
21 x 8 Zoar prop

All standard hardware is used on this plane


I will break down the build in the next posts with pics.... and soon as the weather works with me wil sharea few videos.




Enjoy!