Hi Edward, This rocket was designed to take a 75mm, 54mm, 38mm with 4 24mm just by removing one motor mount and inserting the other. I just wanted a flexible...
Once again we have had another increase in members joining this site, so I would like to take the time to welcome everyone just joining. Take your time and...
Hi Wilfred, Welcome. Thanks for your immediate photos contributions. Very interesting work you are doing. Do you primarily work the sleeves? Could you...
Hello guys, Wow, what a wonderfull stuff you show on this group. I'm really amazed by what I see!!! I'm new to the group so let me introduce myself: My name is...
I did find this and ordered 3 yards ($12 shipping) cause I jus gotta have some for an upcoming fin project (Estes Big Daddy on a J350, this is the 2nd one,...
Hi Mick, Wow, you're quick. The lathe you see in the pictures I use to sand the tubes. Since PVC is never perfectly straight you still have to do a lot of...
how about $32: http://carb.com/s.nl/sc.2/category.8/.f They're friendly and service is good. I haven't ordered recently, but they're pretty good about pulling...
Something else to consider is the use of compound curves on fins. They contribute huge amounts of out-of-plane stiffness. They're a hassle to do a series of...
Along those lines keep an eye on your max velocity of your sim. Having a rocket that sims to Mach 1 is a problem, either stay well below Mach, or go above Mach...
Agreed. Air Force and Navy fighter pilots all say that they complete the journey through Mach as quickly as possible because it's a really rough ride. They...
... it's for this reason I am on an anti-G10 campaign. I think the stuff is just terrible for building rockets! heck, my PML Callisto's fins - which are...
Hi Cliff, This is the first knock I've heard against G10. Personally I am a G11 guy.... What are you looking at as a replacement? Kevlar honeycomb with ...
Lakestake Rocketry
lakestake@...
Mar 1, 2006 7:43 pm
1519
An I-200 in my L1 rocket virtually turned the G10 finned 4" rocket back into a kit. The flutter was off the scale. It was very thin stock and the result was ...
Hi CL, Odd, I have seen a lot of shreds at various launches, but have never experienced the joy personally. I use 'one size up' G10 (1/8" on 3", 5/64" on...
Lakestake Rocketry
lakestake@...
Mar 1, 2006 7:56 pm
1521
There was no additional glass added and they were very flexible. No slam on G10 by any means. I have some 1/4 thick pieces...3 or maybe 4 that someone can have...
Thanks Charlie, The fin design looks like Mick's new 4" fins....just bigger. 2 layers of CF and 1 of S2 fiberglass per side is not out of the question also. ...
G10 is okay for fins IF a suitable thickness is chosen. I checked out a friend's L3 bird-in-progress yesterday. It's 12 feet long and 7.5 inches in diameter....
hey Matt - ... how about plywood with composite skins. weight for stiffness is vastly superior to G10 with composites. plus plywood is cheaper, more ...
well guys on the subject of flutter, now you guys got me worried--1/8 inch g-10 went on my l3 sustainer this week. now according to the info central spread...
I ordered today five yrds of 5.7oz x 50" plain weave CF from Mr Fiberglass.com . $32.92yd in stock. I called Dave to confirm availability. As Keeb mentioned,...
Hi John, for an example of 1/8" G10, I built a rocket out of leftover parts, it's basically a PML Tomahawk missing the upper airframe section. 36" glassed...
I am planning go buy a PML Tomahawk with the quantum tube. I want a rocket that can be a regular "I" flyer. I was not planning on using any support. Is it a...
thanks a bunch, cls.\ i went back to INFO CENTRAL and was fiberglassted to see 384--man i must have made serious mistake first time--now what? i have some 12...
I don't see how you guys are getting so much flutter with 1/8" G10. I personally have put 1/8" G10 fins (and fairly large ones) up to 500+mph with no...
... rocket that can be ... a bad idea not to add ... As long as you scuff up the tube well anywhere you attach something (I use 60 grit) you will be fine. ...
Hi Jason, Good luck on your kit, sounds like fun! For any design it depends on how far you are going to push it. PML publishes a list of motors for each of...
Lakestake Rocketry
lakestake@...
Mar 2, 2006 4:18 am
1533
Guys, I hate to throw a damp rag on the G-10 discussion but we have Eight rockets with G-10 fins and have had no problems. HOWEVER, we've upsized the ...
I'd have to second what Matt said. PML has published the best FAQ to be found in rocketry. I also forgot to mention the foam Matt spoke of. YES, Use it. We...
... let's compare apples and apples. I think your fins must be fairly small. the 3" d-region tomahawk fins measure: 6.5" root chord 3" tip chord 4.75" sweep...
Hi Cliff, Had a hard day at work? You are in fine form. You are usually one of the most balanced and mellow people I know. Good to know you can get fired up...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
