Imperial

good solid information, thankyou for taking the time to write such a detailed overview of the physics related to flywheels. you took what I had in my head but could never put into words, and made something truly enlightening.

I am now seriously considering a twin afterburner setup running of a belt used in rc cars to connect the front and rear drive, and 1 380 sized brushless motor. I have a 380 in my 1/16 rc car that is 4800kv and rated to 12.2 volts that would be somewhere around the 50k rpm mark with huge amount of torque and inertia from the belt and flywheels spinning as one huge rotating assembly. hmm the brain is ticking now, engineering this would take some time.

edit: yes I understand resistance would slow down the 50k rpm figure I gave. these motors can be up to 7100kv from what I have seen, and my 1.3kg rc car will spin all 4 wheels when cruising at 60km/h (40ish mph)and then punching the throttle so torque wouldn't be a problem.

yes it will charge that pack in about 6 hours from dead empty. but you would be better off buying a 2s 7.4v 1000mah lipo $6-8 from hobbyking and one of their turnigy 800mah 2/3s chargers for $5-8. it will charge the battery in an hour and the 7.4v lipo will be better than the 9.6v Ni MH. they also sell Tamiya plug but I would suggest using xt-60's if you are serious. hope I've helped

just buy the stryfe they are the best flywheel baster without dolubt.

1: smooth trigger pull
2: good ranges
3: easy wiring with minimal effort to re-wire
4: cheap
5: no barrel to reduce ranges
6: light manoeuvrable and easy to customize

trust me you won't be disappointed they are by far my favourite flywheel to play around with. I run one on 2s 7.4v lipo reqired and it is pretty impressive and not very noisy. 3s 11.4v is just insane for ranges but is very loud and will eat your motors if your using proper lipo packs and not just trustfires.