Brad Morse

That was old video. Sadly, the “MISSILE WORKS” decals were in clear sight.IIRC The guys had the wires backwards on the batteries. When they didn’t hear beeps, they didn’t stop and check things out. After a while, things overloaded and…   Read more»

What I’ve been using so far is a shop vac hooked up to an airtight container. The Shop Vac pulls the equivalent of 3000 feet of altitude. I have a well-calibrated altitude watch that I put in the same chamber…   Read more»

IIRC he also needs a unit to chamber test, etc. Keep us posted-J

Thanks, John.I sent Tom an email asking about what I would need to do to get the Parrot certified for official Tripoli records. In the meantime, I’ll have fun seeing how high I can go unofficially. I’m looking forward to…   Read more»

Hmm.. I couldn’t find anything about altimeters anywhere on the site. But I’ll contact one of their people to see what’s required.Adrian, the guy in the know is Tom Rouse:Tripoli Contest and Records CommitteeTom Rouse7170 Wooded Lake DrSan Jose Ca….   Read more»

On H or I reloads, there is some differences in the nozzles.H268 has a larger hole dia. than a H210.Any thing bad going to happen If the H268 nozzle is used ina H210?Boy, I would *not* risk it. So you…   Read more»

I think the undisputed KING of the Dayton museum is the XB-70 Valkyrie. They only built two http://www.labiker.org/xb70.html Right beneath theXB-70 is a B58 Hustler, which was very cool as well (though much more common).I have two books on Valkyrie…   Read more»

Tony, what a treat!! thanks for sharing. My goodness, that was an itsy-bitsy rocket for an M… Can’t wait to see it!J

Tony, I’m looking forward to catching up w/ you at BALLS and hearing about your 35K blast on the M650. That is incredible! I always thought the TRA “M” record had been somehow miscalculated. You were right on the doorstep…   Read more»

I’ll definitely be looking out for it at LDRS – I’m quite interested in it. If you look at the drawings though, it certainly implies that only the central hole should be open.It states in the drawing that the nozzle…   Read more»

If you go to http://www.aerotech-rocketry.com/ and click on “resource library” and then go to “RMS motor assembly drawings” and if you start pounding around there, you will find all the drawings for the various reloads, nozzles, etc.At any rate, the…   Read more»

Thats odd, both the J90 and J135 I flew had only the center hole open. All of the others were closed. Interesting. I was told that only the center hole should be open. John, could it be that the nozzles…   Read more»

OK, so in that case it shouldn’t be a problem…I’m looking forward to seeing some of these new loads at LDRS – not just flying, but in the Aerotech tent. I’ll look to see if these appear to have this…   Read more»

J135s and K185s both have medusa nozzles. IIRC, the J90 is in the same boat. Ditto for the Ellis L330 and the AT K250 single use motors.I’ve had erratic flights with all the above, except the J90 which I have…   Read more»

I really dislike medusa nozzles. I have had many flights that corkscrewed with medusa nozzles, but I knew the fins were on absolutely straight because the same rocket flew fine with a traditional nozzle.The medusa sits below a core that…   Read more»

The M750 isn’t quite as big as the M795 (it’s 9,325Ns), but it comes as several grains that are glued together with epoxy in assembly. Result: none of the shipping problems or DOT issues that you have with the big…   Read more»

Aerotech just released 2 new motors – the 75/6400 M650W (9.13 seconds) and the 98/10240 M750W (12.65 seconds)I can’t wait to see these – they’re debuting at LDRS 8)(Altitude junkies rejoice)This is good news. I have a 4″ project that…   Read more»

Funny how things change. Years ago, I would not have even CONSIDERED flying an unpainted rocket. No way. I used to wonder about the folks who did such a thing.As I got older and lazier, I started to fly to…   Read more»

I figured it out (I think). Give a dumb farmboy enough time and he will usually cobble something together.What about this. Get a .75″ diameter wooden dowel, and some really coarse grit sandpaper. Orient the dowel perpendicular to the airframe…   Read more»

Thanks for everyone’s suggestions. Keep in mind that all I’m trying to do is clear the rail– I don’t care if the button falls off at 5,000′ and mach 2. All I want is for a safe departure from the…   Read more»