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Old 09-21-2002 | 01:16 PM
  #54  
Tamecat
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Joined: Aug 2002
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From: Teaneck, NJ
Default Mig - 21

The plane never flew because it was mainly over weight. This was my first try at building a Ducted fan model and I learned a lot. The plane would not have flown with an O.S. 65 and a dynamac fan unit that I thought it should. More like a turbine. But like I said before, I made a lot of mistakes. Here is a list:

1. Use 1/4 inch balsa wood for the whole fuse structure.
2. Used regular epoxy to coat the interior of the plane from inlet
to exhaust. (That alone added much weight.)
3. Made the wings fixed instead of removeable. (Hard to store)
4. The landing gear needed to be more robust. It was too
flimsy. That was also because of the length. But it was at the
correct height for this scale.

Things that learned from this model:

1. How to vacuum form canopy.
2. Preplan the model out before you cut wood. Know where
everything will go before you start. (Fuel tanks, Servos,
Batteries, etc)
3. Keep a construction book so if you want to do it again, you
have a ready reference of what to do and what not to do.
4. Keep it light, keep it light, keep it light. Did I mention KEEP IT
LIGHT!?

I'm currently working on another Scratch DF called the AMX. It's the size of a JHH model and will use a turbax I and 7.5 motor. Many of the lessons learned from above was used to make this plane. As for the Jag, I gave it to a friend. He liked the concept and wanted it. Remember guys, we don't want to finance a crash, better to bow out and save the money for another project than trying to replace valuable equipment. Thank you all for the interest. Any question? Believe me, I have answers.

Tamecat