Is it like Wright Stuff?
Uh, yeah. I stole the bulk of the rules from there when we initially wrote the event, why mess with what worked? Same for Baloon or Elastic Launch Glider.
Course you can say that about towers, bridges and boom as a set too.
Same basic rules, specs on the device, fly for max time, power from rubber.
You can forget most of the trim/stability stuff you needed for Wright Stuff. Trim/Stability is still important, mechanics are very different though. Probably much simpler.
EVERYTHING you needed to know about building light for Wright Stuff applies to Helicopter.
The criticality of matching rubber to prop in Wright Stuff for max duration is even MORE important in matching rubber to rotors.
What's new is things like:
- What is the best shape for rotor blades?
- Should you use on, two, three or more blades?
- Should it be simple, easy to build triangle like shape, or something fancier like eliptical?
- What pitch?
- Blade area?
Dig into those resources, lots of meat there!
Actually, this whole event (as well as being an interesting variant on Wright Stuff) is part of my diabolical plan to eliminate commercial plastic propellors from Wright Stuff whenever it comes back. If you can make a successful rotor, you can make a very good Wright Stuff prop.