Activity

Whoa! I forgot that Scott Evans also volunteered to tow. This is one of the few times we have had multiple towing volunteers.Thanks all.I’ll follow up offline….I will do it next month. Had somethin that may have come up. My…   Read more»

Yah, sing me up! I will be out for the weekend and am free where I am needed.Thanks,Art

Anyone else up for an LCO slot?????

Whoa! I forgot that Scott Evans also volunteered to tow. This is one of the few times we have had multiple towing volunteers.Thanks all.I’ll follow up offline….

Thanks Ken,Mike B. will be bringing it back Sunday afternoon.

Ed, I can tow the trailor up, but won’t be able to bring it back.Ken.

Mike, I have a lot of info on “sugar” reloads. PM me with your e-mail address, and I’ll pass on docs and links to you. They’re fine for up to J’s, though some people have made them through M’s. Not…   Read more»

Most definitely. Sugar and Sorbitol motors, Ammonium Nitrate motors, and homemade Nitrous Oxide hybrids are all definitely within Tripoli rules. Large black powder motors, LOX Hybrids and liquid-fueled motors are a bit touchier subject according to the research safety code…   Read more»

Sugar motors can be flown at research days. The *only* motors that can be flown on NAR days are commercially certified motors.Edward

My wife’s going to record it on VHS… yes, we still have at least 4 of those old things around the house. We have a DVD recorder… and plan to read the instructions at some point. It will be taped…   Read more»

Now, I don’t know how much a month Tivo is but I am sure that it is at least an I motor, an I motor! :)Art

Too bad the boxed set DVD’s cost so much but I definately need to add them to my library since I can’t always watch the boob tube when the programs are on.

TiVo! 😀

Too bad the boxed set DVD’s cost so much but I definately need to add them to my library since I can’t always watch the boob tube when the programs are on.

Adrian, I have used Aeropoxy lately. I’m getting ready to see how good this stuff really is 😯 I’ll know a lot more by early August.

John,When I get home I will, though you would have to upgrade to Rocksim 8 to read it.Your responses on the heating are encouraging. I looked up cotronics, and they have an epoxy that looks good, with low viscosity, 10kpsi…   Read more»

I think the gees would be a bigger problem than heat. You get all your speed all at once with this load. The heating of the fins due to airspeed would be very ephemeral… you’d be slowing down at t-plus…   Read more»

Use Cotronics high temp epoxy on the leading edge of the fins and the tip of the nosecone. There is insufficient heat soak during a flight to cause significant softening of the epoxy although at the speed you’re talking you’ll…   Read more»

I just did a sim. Yeesh. Over 100 Gs for a full second, and a top speed of about 2300 mph, assuming the fins stay on. There would be 80 lbs of drag, of which 20 lbs would be on…   Read more»

Yeah, I would be concerned about the fins getting too hot and the epoxy softening too much. I heated up Barack-it to get the motor out (thanks for the tip, Warren) and was surprised how much more flexible the fins…   Read more»

2,000 miles per is the appx muzzle velocity of a 30.06 bullet. Pretty brisk, indeed…Many years ago, a veteran flyer told me “the gremlins come out at mach 2”. 2,000mph is closer to M3. That is movin’……..JW