Bill Hempel 100cc Yak-55M????? - Page 98 - FlyingGiants
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Old 06-14-2017, 10:38 AM
madinpensacola is offline
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United States, FL, Pensacola
Joined Jun 2014
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Quote:
Originally Posted by Tripower455 View Post
I finally got out and got a couple of maiden flights on my 100cc Yak a few weeks ago! I took it out to the "new" club field, which, IMHO, is a bit tight for anything larger than a .60 sized airplane, with power lines, buildings and roads way too close to it. It's about the size of 2 football fields side by side, and with the various obstacles, it feels like flying in a soup bowl.

I managed to put about 30 minutes of flying on it without mishap, mainly getting the engine tuned up. It was a tad nose heavy, so I moved the receiver batts back from right behind the wing tube, to the rear edge of the receiver tray, and it's damn near perfect now. I went with the recommended throws and expo. It felt mushy with the recommended 35% expo, so I reduced it to 25%, which is much better. I might even take a little more out. Other than a click of elevator trim due to the nose heaviness, it didn't need anything else. Flies like it's on rails and rolls like it's on a drill bit.

After the maiden flights, before I even pulled out of the parking lot, I called the owner of another local field and asked to join, and have spent the last few weeks waiting for the monsoon to let up so I could meet the guy and officially be let into the club. The weather finally cooperated long enough yesterday to get a flight in at the new field, which is like Zanadu, in comparsion. The bonus is it's about half the drive time from my house.

The setup is:

DLE 111 27x10 Xoar laminated prop. I've got a Mejzic 28-10 Evo for it, but wanted to fly it with a cheaper prop for the first few flights and a little less load for the initial break in. 2700 MAH 5 cell nimh ignition batt.

Airtronics SD10GS tx, 92104 10 channel rx.

Savox 1270Ts on all surfaces but throttle, which is a Hitec 5645 MG.

SWB Servo arms.

SWB Self adjusting X2 rudder tray.

Smart Fly Competition 12 with opto kill and fail safe.

Dual 2500 LIFE receiver batts.

32 oz Fiji 3 line tank conversion.

Overall, I am very happy with the airplane and setup. I flew pattern in the early '80's, but now I am strictly a sport flyer, and don't do much 3D but I enjoy flying responsive, aerobatic airplanes. This airplane fills the everyday flyer niche nicely, although I think I need a bigger truck!
Looks awesome! Love the look of the 55. Congrats on the field. Good news like that is welcomed these days.
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Old 06-14-2017, 10:40 AM
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United States, MN, Elk River
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Good looking bird you have there!
Glad you had a good maiden and found a field to suit.
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Old 08-07-2017, 10:30 PM
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Ver 1 Yak 55..... I love it!

Thanks, Bill Hempel. Beautiful bird. CG right on and flew great.

Bill Hempel Yak 55 w/DA 50cc maiden (1 min 12 sec)
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