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Got that right, Warren! Only able to see a hazy view… best I’ve seen was in Los Angeles, CA, years ago. Still, seeing the “shadow of the Earth” is always cool.

damn – CLOUDS!!!!Warren

Hey, it began 7 minutes ago, what am I doing here? 😯

Actually, I’m planning on watching it tonight (Wednesday) starting about 6:45 when it begins to be noticable and maxi-obscured by about 8 PM. Then it starts to fade away. Thursday will be too late.

There is a site that says it is the better way because of stability but I believe Doug G. says it is bunk (I can’t confirm/deny if it is, but I’ll go with Doug). It works for me mainly because…   Read more»

Thanks Edward! This is almost all LOC components (paper tube), piston using nylon webbing with a nomex sleeve attached via a metal D-ring to piton bulkhead. The webbing is epoxied to the 10″ motor mount through 2 of 3 centering…   Read more»

I always put the piston right against the charge. They travel just fine when you keep it clean. What airframe material is used. I also have my piston sitting in my rocket so that it looks like a drinking glass…   Read more»

A clarifying question for you all…I am finishing up my scratch built L1 cert rocket for Oktoberfest and would hate to be embarrassed.Should the piston sit all the way towards the bottom of the airframe “on” the ejection charge/top of…   Read more»

Personally, I put the piston bulkhead right about the 1/2 way point in the piston. Additionally, my pistons are about 10% longer than the diameter of the airframe so that they can’t cock and jam in the airframe. Pistons are…   Read more»

Space on the Sumo may be an issue, but the Brant has more than enough room. Both pistons have the bulkhead set in about 1/4″ but hardly anything close to being centered.I was talking to Jeremiah about something along these…   Read more»

8) One good reason for putting the plate on the bottom is space. Often the space is limited and the plate on the bottom give you more room for shockcords and chutes. 8)Good point, however I think the bulkhead pulling…   Read more»

8) One good reason for putting the plate on the bottom is space. Often the space is limited and the plate on the bottom give you more room for shockcords and chutes. 8)

The way on the bottom is actually the correct method. The other method results in an unstable piston.http://www.deltavrocketry.com/piston.htmSorry to disagree with you Edward but I’ve seen that site before and his theory, analysis and “tests” are all flawed. I think…   Read more»

The way on the bottom is actually the correct method. The other method results in an unstable piston.http://www.deltavrocketry.com/piston.htmEdward

I had thought about the ejection part too, so I was trying to figure an alternate way to add the altimeter. But, not knowing much about ways to do it, I couldn’t come up with anything better. I had thought…   Read more»

Both sides of a piston are subject to pressure changes due to deployment and therefore wouldn’t be an appropriate location for altimeters and other electronics.Warren

Personally I wouldn’t put my electronics in a piston and still use it as a piston. Just the thought of shooting it out of the rocket and all the jostling doesn’t seem that great. Just my opinion. Also – are…   Read more»

Your right Warren. That seems to be something in past though. Not sure what all has changed for Curtis, But I do know he got some new machines and hired 4-5 employees. For whatever reason it is doing things through…   Read more»

I’ve had many conversation with Curtis of PF and many, many broken promises. After a couple years of this and complaining loudly along with a bunch of other folks in the compositerockets email list, Curtis called me and offered me…   Read more»

Getting inventory may take some time and of course some finances. Lots of different directions this is all going. But with work and time it will get there as well as support from folks like you all to help us…   Read more»