edward

With NSL over MHM weekend it seems very unlikely to me to be able to have our launch that weekend. It would split the participants and vendors.Would it be possible to schedule MHM 2013 For May 31 through June 2nd,…   Read more»

If you are on the e-mail list you should have also gotten an e-mail.Edward

Nitrous doesn’t have a shelf life that I know of. I generally go through about 150# in a year so it doesn’t sit around long. I have had a 20# tank sit around for 6-9 months. Still works fine as…   Read more»

I have extra o-rings that will fit 54mm and 75mm – let me know and I can get them to you before your flight.Usually white crystals appear on the surface of the propellant. You sand that off and you will…   Read more»

Most propellants will swell slightly and pick up moisture. Replacing the o-rings is just cheap insurance against them swelling or becoming deformed during storage – especially if the grease used is not 100% compatible with the elastomer. For a flight…   Read more»

I would seal them tightly in a bag so no moisture can ger in. Then when you go to fly them I would disassemble and replace the o-rings with new ones.Edward

I believe you have 12,000′ waiver at the Atlas site.Edward

If your fins are not effective by 88fps (60 mph), then they might be too small. 44fps is the generally accepted minimum speed to leave the rail at, and if a 16′ rail gives you 88fps, you should be more…   Read more»

I’ve rarely seen a 20′ rail. How fast is it going after 15′? With a 5:1 ratio you should be good in calm conditions on even 12′.Edward

16′ is the longest – two 8′ sections joined by plates.Edward

After our early fire season I had wrote off the flying season until hopefully Octoberfest, when there should have been more moisture. But, we didn’t get enough and I think a lot of other people had just moved on to…   Read more»

I’m sure you can still camp out there, just no rockets.Edward

The surest way to guarantee wind is to have a launch, the surest way to have rain is to cancel one. Can’t have it both ways.Edward

When I flew I had everything shielded, and wrapped the ejection charge wires in aluminum foil. I would do this before you drop the altimeter – backups are good to have.Edward

Did you have your electronics shielded?Edward

I’ve used a DC-20 adjacent to RRC2 Mini’s and a Raven and not had ill effects. I did test it though before hand.Edward

It is all weather dependent – either Friday or Saturday because it will be a commercial Skyripper 38mm motor.Edward

I thought Chris had it in the bag with the design. Apparently there are more demons at Mach 3+ than we know about – or they are more insidious.Edward

If you posted them on either Rocketry Planet or Rocketry Forum, I’m sure you’d get your asking price easily.Edward

I’m considering them dead if less than 5 people out of our club show *any* level of interest in them.Edward