edward

So for now I've got this: 2 48" parachutes1 72" parachute. As for colors I'm going to start with the neon green and purple combination unless you want white in there. Edward

The Astro is a great unit. John Wilke told me to use one in my first L3 attempt and because I didn't I ended up storing my rocket on the prairie and logging a 19 mile one day hike to find it. Here is...

E-mail me at edward (AT) alphahybrids (DOT) com Edward

You should really try the surgical tubing method. It beats everything out there. Easy of setup, ease of use - no worry about compacting the powder, holding it in a container, making sure the e-match...

Adrian's screw switches are great. I use them almost exclusively. As for the ejection charge I'd use a setup such as this: Edward

The workmanship is top notch. All pieces are cut with a hot knife to prevent fraying. The seams between panels are double roll hemmed to leave no raw edge exposed. Both the bottom and top edges are...

Even using 4FFFF this method is the only way to go. Easy, efficient and reliable. I've used it over 25K and it works great. It also works under 1k 🙂 Edward

The shroud lines are about 1.25 the diameter. When I was testing these to determine Cd I found no difference between 1.25 and nearly 3 times the diameter in the Cd values. They pack very well, I can ...

Hello All, I'm making a run of parachutes and will post the specifications here if you'd like to order. Toroidal Parachutes - similar to Rocket Rage. All descend at 15 fps for the specified weight. S...

AWESOME work! Love how blue the sky was....absolutely perfect. Now I just need you to convert to the dark side....(Canon). 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 the alumin...

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

Hey all, I've got the 54mm x 28" and 54mm x 36" Skyripper motors assembled from previous launches just waiting to fly. They are a J and K motor. $20 per flight! Edward

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