Search found 49 matches

by seadog
March 5th, 2019, 8:44 am
Forum: 2019 Regionals & States
Topic: New Jersey 2019
Replies: 290
Views: 43277

Re: New Jersey 2019

Division C:

1.South
2.North
3.SB
4.Monty
5.JP Stevens

South looks very strong this year considering that some of their best people have not come to previous invitationals.
by seadog
February 26th, 2019, 6:14 pm
Forum: Elastic Launched Gliders B
Topic: Elastic Launched Gliders B
Replies: 209
Views: 47184

Re: Elastic Launched Gliders B

Sometimes my glider makes a constant arc shape while flying where it lightly goes down and then back up instead of flying stably, and I'm having problems troubleshooting it. It's a homemade glider based on this one: http://www.amaflightschool.org/diy/how-build-indoor-catapult-launch-glider-science-...
by seadog
May 20th, 2018, 7:57 pm
Forum: Helicopters C
Topic: Helicopters C
Replies: 244
Views: 68975

Re: Helicopters C

did anyone see a decrease in times at the competition? I think the air density was a factor of the lower times. At home in a 9 foot ceiling my partner and I were consistently getting times of above 3:10 however at the competition we got a time of 2:40.
by seadog
May 20th, 2018, 5:05 pm
Forum: Towers B/C
Topic: Score Predictions for 2018 Nationals
Replies: 53
Views: 9119

Re: Score Predictions for 2018 Nationals

6th place was 2342 tower weighed 6.35 held 9.875 kg.
by seadog
May 20th, 2018, 5:02 pm
Forum: Mousetrap Vehicle C
Topic: Mousetrap Vehicle C
Replies: 602
Views: 106057

Re: Mousetrap Vehicle C

5th was 9.2 seconds 0.8 cm off, score of 10.8.
by seadog
April 29th, 2018, 6:22 am
Forum: Towers B/C
Topic: Towers B/C
Replies: 524
Views: 98558

Re: Towers B/C

So my kids were kind of ambitious with the number of silica packets they used and they reduced the weight by .24 grams last night. Is this normal or potentially problematic? I have never used silica gel packets to reduce the wight of my tower however the absence of water in the wood may cause the s...
by seadog
March 19th, 2018, 6:58 pm
Forum: Wright Stuff B
Topic: Wright stuff times?
Replies: 35
Views: 11204

Re: Wright stuff times?

In a 90 foot gym times of 4 minutes should be achievable. So 2:37 is a bit on the lower end.
by seadog
March 19th, 2018, 6:55 pm
Forum: Towers B/C
Topic: Towers B/C
Replies: 524
Views: 98558

Re: Towers B/C

You may want to try x's and ladders for the chimney portion of the tower as the main segments undergo a lot of compression. Next time you test a tower make sure to look at the chimney and check if the braces are bending or warping while you are loading. This will give you a clear indication whether ...
by seadog
March 19th, 2018, 11:09 am
Forum: Towers B/C
Topic: Towers B/C
Replies: 524
Views: 98558

Re: Towers B/C

Where should the connection between the base and chimney be relative to the 20cm mark? Our team sees two main options: Option A: Have the chimney legs meet the base right at the 20cm height barely inside the 8cm circle. This allows a steeper base leg angle, but it also requires a shallower chimney ...
by seadog
March 16th, 2018, 4:49 pm
Forum: Helicopters C
Topic: Best Times
Replies: 100
Views: 16249

Re: Best Times

1st place in New Jersey was 2:58 in a 25 ft ceiling. However there was a decent amount of draft which stopped helicopters from reaching their max times.

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