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91" ws Hots

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Old 03-07-2018, 08:59 AM
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loppo
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Default 91" wingspan Hots

I received a 91" wingspan Hots with a G62 Engine from a friend of mine that has Since past away He scratch built it from plans from RC Modeler Or Model Aviation. I am trying to find out the CG and Control surface Throws Can anyone help please

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Old 03-07-2018, 12:37 PM
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All Day Dan
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What does the model look like? Does it have a constant chord wing? Dan.
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Old 03-07-2018, 12:54 PM
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loppo
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Default 91" wingspan Hots

Yes It does how wide I do not know but I can get it
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Old 03-07-2018, 02:01 PM
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That would be the Big Hots. I had one about 15years ago. CG is 6-1/2 back from LE. Plans are still available from Big Hots - Air Age Store
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Old 03-13-2018, 01:01 PM
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loppo
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Default 91" wingspan Hots

I did get the plans but it has nothing about the control surface throws
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Old 03-16-2018, 10:11 AM
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raymond48
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What size balsa sheeting did you use? F11 on the plans have two sizes. 1/8 and 3/32.
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Old 03-16-2018, 03:31 PM
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I can't remember. I sold the plane years ago. I modified it when I built it using a two piece wing with a tube and greatly enlarged the control surfaces. It was a fun plane. Very maneuverable (with the larger control surfaces) and just about impossible to stall with 4 inch thick wing.
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Old 03-27-2018, 04:25 PM
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I've had two of the Big Hots scratch built in the past few years. I'd venture to say control throw is not an issue, put in as much as you can get. It is not a 3D machine, I doubt it will come anywhere close to a hover unless the builder used really light wood. The first I bought from a guy in Ft Worth and was strictly by the plans, had a 4.2 (69cc) Sachs on it. Plane was heavy, not a very good flier. The second one, I scratch built from a short kit from Lazer Cutters in Wichita Falls, TX, same as the first one I bought already built. I made it longer, wider wing, more wing chord, larger ailerons, larger horizontal and vertical tail surfaces and rudder/elevator larger. The plane weighs close to 30 lbs, it is BIG. I powered it with a DLA112. It was a fun flyer right up until it broke in half mid flight at the front of the wing saddle. My first one suffered the same issue, but broke when I was doing field repairs and pressing down on the fuselage in the wing area. It merely broke in half. Not nearly stout enough in that area even tho according to design it has two 1/8" pieces in that area all the way back to the back of the wing saddle. I repaired mine with a 4 foot long down both sides and bottom piece of light ply with NO LIGHTENING HOLES in it from the nose of the firewall all the way to the tail. I also added another layer inside the fuse wing saddle area after bracing it with spruce stringers. I probably added another pound of weight to the overall project. I DO NOT want it to break again. I am still searching for another 100cc engine to mount to it and I'm ready to go....again.
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