|
|
|
![]() |
|
|||||||
|
||||||||
|
|
Thread Tools |
Rating:
|
Display Modes |
|
#4
|
|||
|
|||
|
Re: Helicopter propulsion
Posted by Justin Stiltner at 1/17/2001 12:31 AM EST
Student on team #388, Epsilon, from Grundy High School and NASA, American Electric Power, Town of Grundy. In Reply to: Re: Helicopter propulsion Posted by Michael Betts on 1/15/2001 9:29 PM EST: : John, : Tom is correct, but this needs further discussion. : First of all, I note that you list your team as a high school with no corporate backing. I assume that this means you have no professional engineers, machinists or mentors on your team. : As mentors, one of our primary jobs is to make sure our students leave the competition with the same number of eyes, fingers and toes as they had at the beginning. : Imagination is wonderful. Think outside of the box and revel in your creativity. BUT, do a reality check before you build! : That said, let's consider your problem. : IF YOU COULD design a helicopter which fits the 30x36x60 package, is made from kit materials and can lift a good payload, a few things need to be true. : 1. The blades are hinged and unfold at the beginning. : 2. The RPM required would be truly astronomical. : With the possible exception of some frightfully expensive titanium, you lack the space age composite materials to make a strong enough straight blade, much less a hinged one, and when the blades rip loose from your bot, it's not the bot I worry about. It's the hundreds of spectators who will be ripped to shreds. : Regardless of what else might be said, FIRST would never allow anything resembling a helicopter to be used on stage. They would site Rule S6 and never give you the chance to compete. : The reality is that you have less than 2 horsepower of motors available in the kit. You don't have enough power in your motors to airlift your "minimal system" (battery, control, light, et cetera) much less a payload. BUT YOU DO have enough power to cause some major damage to yourself and your friends! : Trust me, if you try and build something on this scale, you, or someone on your team, could be seriously injured. : Mike Well Said!! Justin Stiltner Team #388 Grundy VA, (still rembers the time he was picking himself up out of the ditch after seeing a model helecoptor crash and flop around like a dieing bird) |
| Thread Tools | |
| Display Modes | Rate This Thread |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| The Helicopter Game | Aaron Lussier | Chit-Chat | 32 | 13-08-2006 19:03 |
| Lots of Wheels and F = u x N | archiver | 2001 | 17 | 23-06-2002 23:37 |