Good going! We need to get more aeronautically minded kids moving through college and into industry.

On the model, I think that the inner tube is a BT-20 which is 12" long, while the outer tubes should be BT-55 based on the marking guide length and each around 5" in length - if you need to replace anything.

Check the glue joints after this length of time, especially the engine mount and shock cord mount. Gloss it up before you apply Sandman's decals and they will slide on like paint. Then you'll have a little piece of history to fly.

__________________
Gravity is a harsh mistress
SAM 002
NAR 91005
"The complexity of living is eminently favored to the simplicity of not."