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by retired1
August 16th, 2019, 1:40 pm
Forum: Wright Stuff C
Topic: Wright Stuff C
Replies: 797
Views: 48391

Re: Wright Stuff C

Jeff has really good words of wisdom. This post should be mandatory reading for any student as soon as they are assigned to the WS event . While I mostly agree with his glue comments, a thinned coat of duco as a primer followed by a full strength coat is equally as strong as any super glue joint and...
by retired1
June 3rd, 2019, 11:26 am
Forum: Regionals and States
Topic: Florida 2019
Replies: 208
Views: 22443

Re: Florida 2019

Curious!! What is the rumor of why the switch from UCF to UF for the state meet. Since you are involved with UF, will you have a 1 mile hike for any event like UCF using the education Gym for 4 events.
by retired1
May 22nd, 2019, 7:13 am
Forum: General Chat
Topic: Science Olympiad Events 2019-2020
Replies: 552
Views: 83556

Re: Science Olympiad Events 2019-2020

For a reasonable guess, take a look at what they are going to cover at the summer event classes in Phoenix.
It will not be perfect, but it will give you a decent idea.
by retired1
April 1st, 2019, 12:18 pm
Forum: Wright Stuff C
Topic: Nationals Room Announced
Replies: 23
Views: 2127

Re: nationaws Room Announced

I find it hard to believe that any college that can host the National science Olympiad can not do better. It will require a major change of tactics for teams that are not getting around 4 min flights. Blind dumb luck will be a major factor.
by retired1
March 10th, 2019, 3:38 pm
Forum: Boomilever B/C
Topic: Boomilever B/C
Replies: 361
Views: 33693

Re: Boomilever B/C

Can not argue with actual figures, but 2 grams in 5 grams is 40%. Literature would rate this a WET balsa. 15% appears to be an accepted % for dry balsa and 5 % for dried balsa. Moisture makes the device weigh more and lowers the tensile strength, moisture is not good. It will absorb moisture from th...
by retired1
March 7th, 2019, 2:01 pm
Forum: Battery Buggy B
Topic: Sighting/Alignment
Replies: 33
Views: 2561

Re: Sighting/Alignment

The last time that I mentored an event like this we set up an offset or aim target that would accommodate the required curve. We kept a careful log of the required turns for the wingnut brake as well as the flag offset. They started with some gross settings (distances) As there was more time, smalle...
by retired1
February 28th, 2019, 9:42 am
Forum: Wright Stuff C
Topic: Just trying to get my bad plane to fly
Replies: 30
Views: 2604

Re: Just trying to get my bad plane to fly

Is your plane your design, a published design , or a kit? What size rubber are you using? Is it tan super sport? Your problem is your winding. Rational sized tss will take about 100 winds per inch of the loop. You are flying with a little bit more than what many people land with.The right turn is a ...
by retired1
January 24th, 2019, 6:58 am
Forum: Battery Buggy B
Topic: Battery Buggy Wheel Stopping Mechanism
Replies: 14
Views: 1796

Re: Battery Buggy Wheel Stopping Mechanism

You might want to try using a Teflon washer. In the past, some of the kit makers included a soft thick cloth washer, something like felt.
by retired1
January 7th, 2019, 2:05 pm
Forum: Battery Buggy B
Topic: Wheels
Replies: 21
Views: 2037

Re: Wheels

Because of the low weight and relatively slow speed,low friction bushings will work very well. Go to IGUS and fill out the information for the Y.E.S. program and they will send them to you FREE!. They have both metric and SAE sizes. They also have bearings, but that is quit a bit more work to do wel...
by retired1
January 4th, 2019, 7:37 am
Forum: Battery Buggy B
Topic: Caliper Steering
Replies: 35
Views: 4063

Re: Caliper Steering

You might want to consider using a 4-40 bolt and nut for your adjustment as you can get more precision that with a 32 or 24 thread bolt or all thread.
by retired1
January 4th, 2019, 3:12 am
Forum: Boomilever B/C
Topic: Boomilever B/C
Replies: 361
Views: 33693

Re: Boomilever B/C

You should have 2 tension members attaching to the dowel, not 4. The reason that the notched en is best is that you have more glue surface, thus a stronger joint.
The dowel option is probably the best because of the less wood (weight) and the ease of attaching it to the hook.
by retired1
January 3rd, 2019, 5:59 pm
Forum: Boomilever B/C
Topic: Boomilever B/C
Replies: 361
Views: 33693

Re: Boomilever B/C

A better way would be to very carefully cut grooves in the end of the dowel that will just fit the tension members . I used Devthane 5, but a good epoxy will work well. The real trick of this is to get the two end cuts to be perfectly parallel. If it is not, re cut a new piece. The joint will withst...
by retired1
December 24th, 2018, 7:29 am
Forum: Battery Buggy B
Topic: Battery Buggy B
Replies: 99
Views: 9125

Re: Battery Buggy B

They are t-40
by retired1
December 23rd, 2018, 2:37 pm
Forum: Battery Buggy B
Topic: Battery Buggy B
Replies: 99
Views: 9125

Re: Battery Buggy B

I am not working with battery buggy this year. I have 8 bane-bot wheels 1/2 " hub 2 7/8 dia and shaft size 0.158 Green tires. Have threaded rod that fits 10 " long and at least one 8" plain stainless rod. Miscellaneous bushings and thrust bearings. An assortment of gears. Not sure whi...
by retired1
December 12th, 2018, 9:29 am
Forum: Wright Stuff C
Topic: Wright Stuff 2019 - Designs
Replies: 16
Views: 2260

Re: Wright Stuff 2019 - Designs

Just looked at Laser Cut Planes web site.. John is selling a kit for $19.00 . It looks like a fairly simple build and should be competitive.As usual, the more practice flying, the better you will do. Also, a few tweaks might help it some.

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