Activity

Wow John that really nice of you. Never had that much apreciation for on of my birds. Im definitly now going to build a new booster. My fins will have about half or less the span ,half inch to inch…   Read more»

Kyle, I had the rocket you mentioned in my hands this week – your dad showed it to me. The work you did was FANTASTIC!!!!!!! and I mean that with all my heart. That said, it is my opinion that…   Read more»

Well, the noise you speak of bruce is actually a Hybrid flight in the DVD. Know what sound and rocket you mean. hybrids of specific makes if not all make this real fluttery sound as they fly. Thats part of…   Read more»

Thanks Bruce for the spread sheet put im sorry to say i do not understand it at all : /

Oh, man, Conway! Tell us! 🙂 You know, on the Oktoberfest ’05 DVD (from Dave Hanson… plug, plug) you can hear, at least I believe it to be true, a high power rocket with fin flutter. Don’t remember which one,…   Read more»

Actually kyle you know someone that has gone that fast and the rocket to boot. Give you 3 guesses. And did it on a 54-2550 full K motor.. More then 1 time with the same rocket. Roughly the size your…   Read more»

I’ve got a great spreadsheet (from somewhere?) that deals with fin flutter, etc. I’ll send it to you both. Elviss_boy, don’t have your e-mail, sent it to Warren. He should send it on to you, if it’s good. Your A-05’s…   Read more»

My fins are pretty big, if you look on public missiles they are the design FIN-A-05. I do not have a taper ont he fins and the rocket is 6 feet tall. So if it wiggles just a bit my…   Read more»

Tell me about the fins. Flutter is readily cured by building up the fins with different resonant frequencies and a taper from base of span to tip. My original SSS bird on an H180 sim’d to just Mach 2 and…   Read more»

8) Count me in 8)

I personally don’t pay much attention to NAR records as they’re not even close to Tripoli records the last time I looked. Tripoli world records are available on the Tripoli website. Our records are located under the Contests link on…   Read more»

will do. Maybe add it to a dvd if sufficiently entertaining,John S

Let me know when. I’d love to get a video. Kinda like “Back to the Future”.KP

Thanks guys, Donna did do a great job. There is a drawback, however to enlisting spouses aide: she now is an equal partner in the go/no-go choice. If windy and any chance of thermalling or drifting away, I don’t ask,…   Read more»

John, nice chute. I recently read that the Jeffco and Park County Sheriff’s are on the lookout for folks deployment testing chutes out of sunroofs Just kidding. I’m sure the bazooka test was a sight to behold…KP

Looks great, and that’s one heck of a chute 😀

I carry several products that do a great job of filling in any of the stuff you guys are talking about and then some. Most are a light to ultra light polyester body filler or finishing glaze. Some are even…   Read more»

Thanks, Warren.

From the boat building biz, the proper way to deal with the fabric weave is to do a process called “fairing”. (As in to make something look “fair” or pretty). You use epoxy mixed with glass or silica microballoons and…   Read more»

Yes, it does. Thanks again, Doug.