edward

Use well nuts for QT. Works great! No glue and they can be interchanged.Edward

I’ve got some 4″ acrylic tube that I turned down to fit inside regular 4″ tubing. It has 2 shoulders on it. Will you be at the meeting? If so I’ll bring the small sample piece along.Edward

A water bottle, typically Lexan before the BPA scare, some other chemical after.Edward

I wonder if anyone has messed around with a helical offset core? That would give it the same burn geometry (at least in 2D), but eliminate the weight imbalance. As long as it were a perfect helix, the core could…   Read more»

After flying the Delta II back in 2004 I would go with starting the central motor (assuming it can safely lift the rocket) and then lighting the other motors via onboard electronics. We did the Delta II reverse, and the…   Read more»

Instead of front loading, wouldn’t it be easier to turn down the retainer to a tailcone and then fly it on a research day?Edward

I’m pretty sure that is the chute from John Bixler’s Junior flight on Sunday. He had a flight anomaly at burnout and it shredded.The booster was recovered about 50 yards north in the pad area sans a nosecone or chute….   Read more»

So after reading over this I think there probably is a simpler solution than banning an altimeter flown by the manufacturer. When digital photography came of age it just so happened that all truth in photograph was lost. You really…   Read more»

Following John W.’s logic that it is really hard to drift 15,000′ away on a 9k boost another data point is John Bixler’s Junior flight on Friday. He flew a 54mm diameter rocket to 22,312′ and recovered 1.72 miles due…   Read more»

I do not have a website for purchases – I’m a little more old fashioned 🙂 If you have something in mind let me know and I can get you a price on it. I’ll post the MSRP here, but…   Read more»

Hey!RATTWorks motors are available, mainly through Pratt Hobbies. I really like the Skyrippers for monotube hybrids (hence why I’m a dealer). They are easy to set up and always light. I was 4/4 with flights this weekend. Another one (Jordan’s)…   Read more»

No problem on that! I’ll trust you on the setup!Edward

Yes it will. Todd had some awesome 54mm retaining rings made that fit Aeropack and Slimline. Also – what electronics.Edward

Small Black Echo Car. Big Orange Rigid Box on a Trailer. Alpha Hybrids banner and I’ve got a black felt cowboy hat.Edward

I have a set of drills so you are good to go. What kind of motor retention do you have?

The SRS 54mm motors run from 24 to 36″ long. J/K power. They do require a vent and the reloads run $20/flight. Here is the performance information//skyrippersystems.com/documents/performanceinfo.htmLet me know if it will work for you!Edward

Thanks a ton Joe! I’ll black those out of my photography schedule!Edward

I have found that containing the powder in latex rubber tubing reduces the amount of BP used dramatically and is more efficient.http://hometown.aol.com/tfish38/page16.htmlHere is where I learned it from. It is all I use now – everything is nice and contained…   Read more»

Can you get a ‘core charge’ back…or at least the silver that got dissolved during developing? :)Edward

How many pounds of silver nitrate is in all the film you are shooting? :)Edward