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Old 02-05-2007 | 10:49 PM
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badger5964
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From: Fayetteville, NC
Default RE: Bridi Killer Bee

Here are some picks of the tail group peices.

I thought the model needed more rudder so a bought the bottom trailing corner out about 3/4", leaving the rest the same. I also did not want the flying wires attached to the stabilizer and fin so to strengthen this area added carbon fiber ribbon. I used the same 1/4" carbon tow used in the wing. Using my Dremel and a router like bit, I sunk a flat bottomed cut about a 16" deep and 5/16" wide. Then laid in a layer of laminating epoxy, the tow and a fitted peice of 1/16" thick balsa. Clamped it down flat and tight. After it set up I sanded smooth and did the same to the other side.

I did not like how the fin fit near the rear former. There is a V shaped gap between the verticle former and the sloping fin. So I add some 1/2" balsa stock to fill the gap and provide a smoother transition between the turtle deck and the fin.

I had a brain fart while fitting the fin. I fitted the fin without the 1/2" thick stabilzer in place. This lead me to cut the fin root where it fits to the very rear of the fuse a 1/2" short.

My Robart Incidence meter came in today so I'll use it to check incidence on the wing as previous posts stated my concern over the ill fitting wing/fuse joint.

I used a method from airfield models.com to get a perfect fit for the wing saddle. Used expoy laminating resin and micro ballons to fill wing/fuse gap. Looks like it will work well.

Next up is assembly of bones and a draft balance check. I'm looking to place the servos. I'll place where it makes balance sense. Plans call for both rudder and elevator servos to be mounted in the fuse near the rear. I just want to confirm location with balance. If tail heavy I'll try using pull-pull to move servos forward.

I hope to do the balance check and glue and glass the cowl and wheel pants. Will post some pictures of those propably next week.