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Thorpe F-20 build

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Old 07-01-2012, 05:48 PM
  #201
tlj125
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Default RE: Thorpe F-20 build

Started to plane and sand the bottom sheeting, 1st and 2nd base, into shape. The plans show a general outline of the shape but not very clear. Just have to do what looks about right.
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Old 07-04-2012, 05:32 PM
  #202
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Default RE: Thorpe F-20 build

Worked on blending the bottom of the fuse around the LE extentions, inlets, and nose. Plans are a little vague here as well. Roughed in with 100 grit paper. Just tried to make it look right.
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Old 07-04-2012, 05:37 PM
  #203
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Default RE: Thorpe F-20 build

Put some light balsa filler all around to try to blend sharp corners and fill holes and joints.
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Old 07-04-2012, 11:28 PM
  #204
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Default RE: Thorpe F-20 build

You can't beat some good old balsa bashing, this one brings back some great memories, Ron.
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Old 07-05-2012, 02:21 AM
  #205
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Default RE: Thorpe F-20 build

Terry youre almost there. Keep up the hard work.
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Old 07-05-2012, 05:36 PM
  #206
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Default RE: Thorpe F-20 build

Ron- any advice on finishing this model? Plans are a bit vague on final shaping.
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Old 07-05-2012, 05:40 PM
  #207
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Default RE: Thorpe F-20 build

Bob- I appreciate the encouragement. Wanted to get it done in time for KY Jets. Not going to make it.
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Old 07-05-2012, 11:28 PM
  #208
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Default RE: Thorpe F-20 build

I finished mine in 0.6 ounce glass cloth and resin. I think there is a video clip posted earlier. Ron.
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Old 07-06-2012, 02:10 AM
  #209
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Default RE: Thorpe F-20 build

Ron- I meant as far as shaping. For example, the bottom sheeting where it mates with the tail cone and elevators. Not sure what to do there. Watched the video several times to figure out the bottom up by the inlets. The back of the plane wasn't as clearly shown though. I appreciate the help and positive comments.

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Old 07-06-2012, 12:21 PM
  #210
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Default RE: Thorpe F-20 build

Hi Terry, it was a long time ago that I built my F20. I don't remember what I had for lunch today!! I think the tail plane to fus' joint was square on top and blended with a fillet on the under surface. I think the rear outer edges of the fus' base were tapered into rear facing bullet pods. The BVM agressor and maverick illustrate a simple blend with their detachable tail cone. Ron. p.s. I have a half built thorpe F20 waiting patiently for completion.
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Old 07-07-2012, 03:53 PM
  #211
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Default RE: Thorpe F-20 build

Well, Git-R-Done Ron!

Prepped the bottom of the model for glassing first. Got everything together and ready to start.
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Old 07-07-2012, 04:01 PM
  #212
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Default RE: Thorpe F-20 build

Mixed 1 oz resin, 1 oz hardener, and 1 oz MEK to thin for brushing. Laid the 1/2 oz cloth over the model and brushed the glue through with a small paint brush. Tried not to use too much glue. I mixed just enough to do the bottom. Clean-up of the brush was done with MEK so I can re-use it. The glue is suppose to set in 20 minutes and cure in 3 hours. Mixing in the MEK slows this down. I extimate it takes twice the normal time. I will wait for tomorrow to glass the top.
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Old 07-07-2012, 04:04 PM
  #213
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Default RE: Thorpe F-20 build

A few additional pics...
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Old 07-08-2012, 05:09 PM
  #214
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Default RE: Thorpe F-20 build

Used a #11 exacto to trim the glass cloth. Then sanded the edges with 150. Prepped the top and started glassing the nose and wings.
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Old 07-08-2012, 05:11 PM
  #215
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Default RE: Thorpe F-20 build

A few more pictures...
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Old 07-08-2012, 05:14 PM
  #216
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Default RE: Thorpe F-20 build

Glassed the hatch and flying surfaces...
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Old 07-11-2012, 06:12 PM
  #217
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Default RE: Thorpe F-20 build

Glued on the front pieces for the vertical fin faring. Started carving and sanding into shape. Of course lots of sanding after fiberglassing.
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Old 07-11-2012, 06:15 PM
  #218
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Default RE: Thorpe F-20 build

A few more pics...
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Old 07-12-2012, 12:40 PM
  #219
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Default RE: Thorpe F-20 build

I have followed this thread all the way along, and your build/building skills are impressive! It's been a joy to follow so far, I'm sure this will go well on the MW44 (Ballistic I think)!

Keep the good work!


All the best

John.
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Old 07-12-2012, 06:05 PM
  #220
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Default RE: Thorpe F-20 build

Thanks John. I hope it has good speed and vertical performance.

Marked and carved on the faring more tonight...
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Old 07-12-2012, 06:08 PM
  #221
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Default RE: Thorpe F-20 build

Sanded it into rough shape...
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Old 07-15-2012, 06:13 PM
  #222
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Default RE: Thorpe F-20 build

More glassing on the top and rear of the plane. Also glassed the inlet lips on the front where it is balsa.
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Old 07-15-2012, 06:16 PM
  #223
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Default RE: Thorpe F-20 build

More glassing pics...
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Old 07-15-2012, 06:18 PM
  #224
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Default RE: Thorpe F-20 build

And a few more...
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Old 07-16-2012, 06:05 PM
  #225
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Default RE: Thorpe F-20 build

Sanding, sanding, sanding...

Ordered paint tonight from Klass Kote. Anybody have experience with this type of epoxy paint? I really liked their website. Lots of info and testimonials. Picking out what I needed seemed not too difficult. Would like to hear from others on what they have experienced with this paint.

If all goes well, I'll be spraying primer over the weekend!

Terry
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