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by erikb
May 21st, 2013, 12:13 pm
Forum: Helicopters B
Topic: Helicopters B
Replies: 139
Views: 21154

Re: Helicopters B

What is the best way to start preparing for this event now/over the summer? I will give you the same advice i give my kids. Write down everything you learned this year. Write down any random thought that pertains to helicopters. Then think hard about what you want for next year. Make reasonable goa...
by erikb
May 21st, 2013, 12:00 pm
Forum: Helicopters B
Topic: Chinook Helicopter Design
Replies: 11
Views: 5301

Re: Chinook Helicopter Design

That was a beautiful flight, but I am still curious how Ron transfered the energy from the horizontal bands to the vertical prop shafts evenly. Roy uses two very small aluminum tubes bent to form the curve with .014" wire run through them. A rubber band is attached to one end of the wire while the ...
by erikb
May 21st, 2013, 11:35 am
Forum: 2013 Build Events
Topic: Robot Arm C
Replies: 425
Views: 42916

Re: Robot Arm C

No one got a good movie from nationals for the robot arm. But, it did not change from state.

http://www.youtube.com/watch?v=cNxv9cCmzOA
by erikb
May 21st, 2013, 11:03 am
Forum: 2013 Build Events
Topic: Gravity Vehicle C
Replies: 426
Views: 46590

Re: Gravity Vehicle C

Second place teams, second run

http://www.youtube.com/watch?v=S2q0Aa_nx7M
by erikb
May 21st, 2013, 8:11 am
Forum: 2013 Build Events
Topic: Elastic Launched Glider C
Replies: 454
Views: 71644

Re: Robot Arm C

I will try one more time, then i suggest we drop it completely. As i have no way to express what i am trying to say in a manner that would be understood. If it is not now. In no way was i suggesting that the event staff did anything but try to make a fair event. I believe they did everything they co...
by erikb
May 21st, 2013, 7:25 am
Forum: 2013 Build Events
Topic: Elastic Launched Glider C
Replies: 454
Views: 71644

Re: Robot Arm C

....All teams were not afforded equal opportunity. .... Hello. As the ELG event supervisor, I wanted to offer our perspective. Things we can control: -Air / Blowers We requested the gym A/C to be turned off at 6am. This was miscommunicated somehow within WSU and it took them until 8am to get it tak...
by erikb
May 21st, 2013, 7:10 am
Forum: 2013 Build Events
Topic: Elastic Launched Glider C
Replies: 454
Views: 71644

Re: Elastic Launched Glider C

Here is a video of one of the flights. What it shows is the underside of the launching mechanism. Pitch and roll are controlled by two pivot points in the base close to the launching surface and a ruler on the other side is used to measure pull back. (yaw is constant since you are pulling it in a st...
by erikb
May 21st, 2013, 6:34 am
Forum: 2013 Build Events
Topic: Elastic Launched Glider C
Replies: 454
Views: 71644

Re: Robot Arm C

I'd also suggest coming up with a suggested solution to these grievances. We emphatically and rigorously try to make the contest as fair as possible to everyone, but it isn't like we're able to reduce the air pressure in the room to match conditions at teams local venues, there are limits to what c...
by erikb
May 20th, 2013, 11:48 pm
Forum: 2013 Build Events
Topic: Elastic Launched Glider C
Replies: 454
Views: 71644

Re: Robot Arm C

In two events pl2 feels that he was denied the opportunity to truly do his best. And those that saw him at the gliders know how upset he was. I'd like to suggest a little perspective here. All competitors were treated equally as far as I know and given the same 'opportunity'. Like most situations i...
by erikb
May 20th, 2013, 8:20 pm
Forum: Helicopters B
Topic: Air resistance / density / humidity changes ?
Replies: 2
Views: 2106

Re: Air resistance / density / humidity changes ?

Given that next year will be in Orlando (and hoping that we win state again) how do other groups manage this variability ? Do you just go early with extra kits and retune or are there better solutions ? Build a new glider on site. That is a time consuming process in the middle of chaos. The goal is...

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