Search found 28 matches

by BalsaFerret
January 27th, 2020, 6:07 pm
Forum: ​W​r​i​g​h​t​ ​S​t​u​f​f​ ​C​
Topic: Altered Rules for Havard Invitational
Replies: 3
Views: 1675

Re: Altered Rules for Havard Invitational

This modified rules still has the "biplane" comment in Rule #1, so a biplane would be legal it would appear. Last year I believe had a 7cm chord, so the chord is larger than last year. Therefore not a direct drop-in replacement. They also crossed out the prop limitation, so like last year, the prop...
by BalsaFerret
January 27th, 2020, 3:32 pm
Forum: ​W​r​i​g​h​t​ ​S​t​u​f​f​ ​C​
Topic: Altered Rules for Havard Invitational
Replies: 3
Views: 1675

Altered Rules for Havard Invitational

Apparently the people at Harvard have decided to revise the rules for WS like Mass. Scioly does every year with "Wrong Stuff" (as janky as it can be). Besides official clarification from the event runners themselves, I wanted to see if you guys can make something from these "slightly" altered rules:...
by BalsaFerret
January 12th, 2020, 8:42 pm
Forum: Boomilever B/C
Topic: Boomilever B/C
Replies: 357
Views: 35381

Re: Boomilever B/C

As everyone is familiar with the "one finger buckling test", by Balsa Man himself, in order to categorize compression members, the general trend (or at least in my case) is that buckling strength is directly proportional to weight: a heavier stick would more or less have a greater buckling strength....
by BalsaFerret
June 2nd, 2019, 3:51 pm
Forum: Wright Stuff C
Topic: Wright Stuff C
Replies: 799
Views: 78000

Re: Wright Stuff C

1st: Albequerque HS with a 5:09 2nd: Bayard Rustin HS with a 4:25 3rd: Northville HS with a 3:50 From what I observed ^ I was 4th place with a 3:39 no bonus for time. During practice on Friday, I got 4:02 twice, Acton Boxborough can attest. But nonetheless it was great flying here and really amazin...
by BalsaFerret
May 21st, 2019, 8:39 am
Forum: Wright Stuff C
Topic: Wright Stuff C
Replies: 799
Views: 78000

Re: Wright Stuff C

Balsa, We use the Bernie Hunt NP/Design spreadsheet. Fern Rash also has published a good one. Both are available in the Yahoo Group “Indoor_Construction” in the Files section. Bernie’s sheet doesn’t calculate CG perfectly for heavy airplanes like we use for SO but we “trick” the spreadsheet by ente...
by BalsaFerret
May 19th, 2019, 8:38 pm
Forum: Wright Stuff C
Topic: Wright Stuff C
Replies: 799
Views: 78000

Re: Wright Stuff C

Balsa, We generally start testing by selecting a conservative CG based upon the neutral point and a slightly excessive decalage angle (difference between the wing and stabilizer incidence angles). We fly this setup, maybe slightly reducing wing incidence if stalling, with a variety of propellers (u...
by BalsaFerret
May 18th, 2019, 5:12 pm
Forum: Wright Stuff C
Topic: Wright Stuff C
Replies: 799
Views: 78000

Re: Wright Stuff C

Hey guys, although nats is not far away and people are finalizing their flights, I still don't feel like I've fully grasped the details and want to ask some (basic) questions: 1) How do you know when to adjust incidence/moving cg/testing different torques to maximize times - is it just through testi...
by BalsaFerret
May 18th, 2019, 3:32 pm
Forum: 2019 Nationals
Topic: 2019 National Tournament: Cornell University
Replies: 476
Views: 87332

Re: 2019 National Tournament: Cornell University

Isn't it also screening on Thursday night? Not sure when but that's when I'm planning to see it True, although I'm pretty sure Friday would gather more people bc I think most teams are arriving late Thursday or later But now that these two conflict I'm just disappointed You're in luck! We actually ...
by BalsaFerret
May 17th, 2019, 2:50 pm
Forum: 2019 Nationals
Topic: 2019 National Tournament: Cornell University
Replies: 476
Views: 87332

Re: 2019 National Tournament: Cornell University

After much discussion with Cornell, we were able to secure the Ramin Room for additional time on Friday! The practice times for Flying Events are now as follows: Friday - 2:00 pm - 5:00 pm (NOTE: HVAC SYSTEM MAY BE RUNNING ON FRIDAY) Saturday - 6:00 am - 8:00 am and during downtime throughout the d...
by BalsaFerret
May 17th, 2019, 1:58 pm
Forum: 2019 Nationals
Topic: 2019 National Tournament: Cornell University
Replies: 476
Views: 87332

Re: 2019 National Tournament: Cornell University

Can you Nats2019 give anything more regarding flight tests for DivC Wright Stuff and DivB ELG? Many teams have asked if there are Friday times due to impound and event issues Saturday morning. After much discussion with Cornell, we were able to secure the Ramin Room for additional time on Friday! T...

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