RE: Speedy Bee
Good Day D Dr.!
The Tyvek sounds interesting but I just fixed up a Speedy that was over weight, it started a 4 lbs and when I finished recovering it I had it down to 3 lbs.
One pound doesn't sound like much until you realise that it represents a 30% reduction in the overall weight of the AC and a 100% improvement in the performance.
I'm not saying that your Speedy won't fly at 3.5 lbs, but I'll suggest to you that it'll fly better at 3 lbs.
With these small AC there is always a trade off between a "Solid" AC and a "Light" AC - that choice can only be made by the builder.
For now I'll stick to monocoat for the Bee series but for my 60 size AC, the Tyvek will be a great option! Thanks for the information.
Merry Xmas!!