edward

Awesome! Will definitely be nice to have a channel for those. Congrats!Edward

You have to have something to braze the fins to – you cannot do it to the motor case. This slides right over the motor. The whole assembly (with cosmetic fillets) weighs just under 450 grams.Edward

I know all the discussion here has been on composite fincans but I wanted to give input about metal ones. I built one for my L3 – it was 2.5″ diameter with a 7″ root and 4″ span. I brazed…   Read more»

The window opened at 11:30 and was to close at 13:30. I think that they closed it earlier because we wanted to give them the airspace back.Edward

Does that mean that the rocket has to go above 20k to have the 5 nm radius? This is good because I might get to go on another 19 mile hike :)Edward

Very nice!Where do you get the temperature corrected altitude from?Edward

Thanks! I’ve got a ton of machine work to do to get the initial sets ready, but shouldn’t be too far in the future!Edward

Yes, I’m going to do a production run.Edward

How did that flight go? What motor did you use?Edward

The RRC2 Mini records altitude, time to apogee, and velocity in fps. I do not know anything else. Those canyons north are quicksand for rockets.The rocket had a slight S x SW boost on it. Not a lot, maybe 2-3…   Read more»

I have the USGS topo maps for Colorado on CD. They are a very nice resource. The map for this quadrant is called Chalk Bluffs East. Circa 1972. I purchased these in 2003 so that part is fairly recent. If…   Read more»

Here is a topo .PDF that I made of the area, I marked all the high points.http://www.alphahybrids.com/Media/TopoMap.pdfEdward

Ernie was testing his L3 setup at Hartsel and I had my foot bracing the backend of a 16+ gram ( I think it was 19 g) charge. I call it the shotgun shell charge. Blew his nosecone through a…   Read more»

I feel bad, I spray on latex house paint!:)Edward

3/8″ for 1010 and 1/2″ for 1515. I might hit the pawn shops for the cheap stamped ones also. I’m sure we could put a flag on them to make sure they stay with the rails.Edward

I’ve got one…I think…e-mail me at edward at alphahybrids dot comEdward

Which model is preferred, the DC-20 or DC-30. After walking 19 miles (and finding my rocket) with a falconry tracker I was thinking of adding this to it so it might narrow the search down a bit and still use…   Read more»

Use RAS Aero.http://www.rasaero.com/Just remember GIGO :)Edward

Did you try the Fort Collins HT? They’ve got a nice stock of old QT there.Edward

Aluminum foil tape. Looks shiny.Edward