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by jander14indoor
Yesterday, 11:10 am
Forum: Wright Stuff C
Topic: Wright Stuff C
Replies: 796
Views: 47895

Re: Wright Stuff C

Lots of good comments so far. Glue, go see that article I wrote WAY to many years back on the NSO website. - Lightest, thinned duco, but NOT necessary for WS planes. Believe it or not, these things are HEAVY compared to hard core indoor planes. And it does take some practice/technique to make it rea...
by jander14indoor
July 17th, 2019, 8:34 am
Forum: Wright Stuff C
Topic: Pennyplane Discussion
Replies: 10
Views: 1696

Re: Pennyplane Discussion

Congrats! Though I have to say you are a brave one to fly a Penny Plane outside!

Jeff Anderson
Livonia, MI
by jander14indoor
June 20th, 2019, 6:13 am
Forum: Wright Stuff C
Topic: Pennyplane Discussion
Replies: 10
Views: 1696

Re: Pennyplane Discussion

there is another trick to straighten wire. BEFORE you cut it. Suspend it vertically with a weight on the end heavy enough to just pull it straight (elastically). Twist until yield. Remove weight and check to see if it hangs straight. Start with one or two turns, check. If not straight, try three, ch...
by jander14indoor
June 19th, 2019, 7:37 am
Forum: Wright Stuff C
Topic: Pennyplane Discussion
Replies: 10
Views: 1696

Re: Pennyplane Discussion

INAV Hobby Shopper already mentioned, its in the link I posted already. You could 3D print a form, but it would limit you to air drying, no tossing it into the oven to accelerate drying. Might want to add drying holes to the surface you form on to increase drying rate. Air drying isn't much of a con...
by jander14indoor
June 12th, 2019, 6:57 pm
Forum: Wright Stuff C
Topic: 2020 Wright Stuff Parameters
Replies: 32
Views: 2716

Re: 2020 Wright Stuff Parameters

Probably getting to point that you'd be better asking these on some of the free flight forums as suggested. That said... ...I'll give MY view. Rounded nose spars. Just what it sounds like. Round off the top and bottom LEADING corners of the leading spar. Start with a square 1/16 spar and round two e...
by jander14indoor
June 12th, 2019, 7:44 am
Forum: Wright Stuff C
Topic: 2020 Wright Stuff Parameters
Replies: 32
Views: 2716

Re: 2020 Wright Stuff Parameters

As with Wright Stuff. Most any plan you find on line will work for a Limited Penny Plane. And most are balsa based. The key for a good LPP (of any design) is CAREFUL balsa selection for max stiffness while hitting target weight. Particularly spars. Which is why some flyers have gone carbon. But you ...
by jander14indoor
June 7th, 2019, 8:15 pm
Forum: Wright Stuff C
Topic: 2020 Wright Stuff Parameters
Replies: 32
Views: 2716

Re: 2020 Wright Stuff Parameters

Whatever trips your trigger. Limited Penny Plane is a typical next step. Very doable with hobby shop wood if you select carefully. Capable of very impressive performance without being too fragile. Frankly I'd suggest you start here. Mini-sticks are several steps harder to hit min weight, but can be ...
by jander14indoor
June 7th, 2019, 8:47 am
Forum: Wright Stuff C
Topic: 2020 Wright Stuff Parameters
Replies: 32
Views: 2716

Re: 2020 Wright Stuff Parameters

Pushers, canards, and even this years tandems are just ways to get student's thinking about unconventional design approaches. Dime bonus was just added mass, didn't even drive much in the way of design change, just forced students to demonstrate THEY knew how to adapt their plane since it was a 'sur...
by jander14indoor
June 7th, 2019, 8:16 am
Forum: Roller Coaster B
Topic: Roller Coaster B
Replies: 76
Views: 9218

Re: Roller Coaster B

Good description of my measurement method. I loaded the design of the gauge on thingiverse: https://www.thingiverse.com/thing:3395737 and back in Feb posted that link to another string on roller coaster. I plan on doing that for all events I supervise in the future, no reason to hide how devices are...
by jander14indoor
June 5th, 2019, 11:00 am
Forum: Roller Coaster B
Topic: National Scores
Replies: 26
Views: 1114

Re: National Scores

Heh heh oh the pain of having a stubborn coach I observed this too frequently with Mousetrap Vehicle, where making your device fit in a box that is 1 cm smaller on each dimension confers virtually no disadvantage. However, 1 cm of height on a roller is worth approx 1.4 cm's of gap - and 2 cm's is t...
by jander14indoor
June 4th, 2019, 4:21 pm
Forum: Wright Stuff C
Topic: Wright Stuff C
Replies: 796
Views: 47895

Re: Wright Stuff C

Don't get me wrong, personally I have no problem with kits. They are especially helpful to get raw teams started and to achieve some level of success. After all, the reason I spend so much time coaching, contributing to this list, etc, is because until a team has a plane that flies, there is NO oppo...
by jander14indoor
June 4th, 2019, 4:14 pm
Forum: Roller Coaster B
Topic: National Scores
Replies: 26
Views: 1114

Re: National Scores

You are more than welcome. I enjoy spending time with the competitors, you all are universally polite, knowledgeable and well spoken. While the day is long and hard, it is ultimately time well and enjoyably spent on the part of me and my volunteers. I think the scores represented an event that worke...
by jander14indoor
June 4th, 2019, 11:04 am
Forum: Roller Coaster B
Topic: National Scores
Replies: 26
Views: 1114

Re: National Scores

Summary of nationals scores Top score 665, already posted, accurately described 2nd - 653 points, 84 cm across three gaps 3rd - 645 points, 84 cm across two gaps 4th - 608 points, 78 cm across three gaps 5th - 595 points, 72 cm across three gaps 6th - 559 points, 65 cm across three gaps Pretty close...
by jander14indoor
June 4th, 2019, 9:56 am
Forum: Wright Stuff C
Topic: Wright Stuff C
Replies: 796
Views: 47895

Re: Wright Stuff C

Here's a question I have about kits. There is always a lot of 'noise' about how important it is to have a kit to win or only kits can win. Which allows Wright Stuff to be attacked, unfortunately. Subjectively I don't believe that to be true. Obviously the first place plane wasn't a kit. Note, I DO r...
by jander14indoor
May 17th, 2019, 7:46 am
Forum: Wright Stuff C
Topic: Wright Stuff C
Replies: 796
Views: 47895

Re: Wright Stuff C

Warm air helps the rubber store more energy (to a point, and possibly more correct to say cold rubber stores less energy). Humid air, in addition to the weight gain, tends to soften the balsa, affecting trim and motor stick bending. And its not really the humid air, but the resulting moisture increa...

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