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Bill Hempel 100cc Yak-55M?????
Just maybe!
Mr. Hempel has decided to see if there is a market for smaller versions of the Yak-55M. He has prototypes for both the 50cc and 100cc. I was lucky enough to be asked to give one a try and I chose the 100cc. To me, it is the perfect size for all types of flying. A few quick specs: 101" wingspan approx. 1850 squares 92" length, back of rudder to front of cowl 15 pounds as you see it below - basically less radio gear, powerplant, tank, and wheels. I've built a few 100cc planes and all the equipment added to the airframe usually comes out to about 10-12 pounds. So it looks like this will be a 25-27 pound plane |
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Re: Bill Hempel 100cc Yak-55M?????
A little more info.
This is true, "no glue required" from what I can see - all control surfaces are the pocket-hinge type, which means no glue and, more importantly, no hinge gap sealing! Oh, and check out the throw! I didn't get a pic of the aileron but it's about 90 degrees |
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Re: Bill Hempel 100cc Yak-55M?????
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Also, the roundness of the entire fuselage and lack of a tall rear deck can actually improve the way the plane rolls and the effectiveness of the rudder response. |
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Re: Bill Hempel 100cc Yak-55M?????
The cowl has a ring in it, with a tongue-and-groove setup to hold the bottom in and three screws(that will be hidden by the hatch) to hold the top in. Pretty sleek. Also worth noting, all the cooling louvers are already cut out - talk about saving a few hours of my time!
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Re: Bill Hempel 100cc Yak-55M?????
The wings are recessed in the fuse of course, and it came with carbon wing and stab tubes
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Re: Bill Hempel 100cc Yak-55M?????
Last pics for now:
The inside of the fuse is plenty roomy and the fuse seems very well constructed - and light. There are no provisions for a tail-mounted rudder servo but there is plenty of meat back there that I just might do it if the CG allows. This is a pretty long tail moment so it may not be an option. |
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Re: Bill Hempel 100cc Yak-55M?????
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Money is obviously tight and I have the Tucson Shootout just around the corner to focus on so it may be a slow process but I will do my best. Maybe I will do well enough to win the engine I need(DA-100L is the plan)! |
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USA
Joined Jan 2006
256 Posts
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Re: Bill Hempel 100cc Yak-55M?????
I like it! I already have two 100cc planes completed that I have not flown yet (long story). Bodywerks, if you like how it flies I will have a third.
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Re: Bill Hempel 100cc Yak-55M?????
That thing looks sweet. That 55 design is growing on me big time. It looks like a high quality kit.
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Re: Bill Hempel 100cc Yak-55M?????
This is a pre-production prototype so some things might change if he does decide to market them, but I would think very little. It is just a smaller version of his 44% Yak and I can tell you that it flies awesome.
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