edward

They are pre-assembled, but not stored in the casing. I should clarify that I would take the reload out of the aluminum casing and store it back in the cardboard tube it came in. The reason to do that is…   Read more»

I don’t know how all the o-ring seals are designed, but most that I have encountered have been close to an industry standard for gland width and compression factor. Parker has an extensive manual on this. Even when they are…   Read more»

I would take the motor apart and put it back into the container it arrived in. You don’t want to have the o-rings compressed for a long time and not perform next time.If I have to take apart a motor…   Read more»

The main difference between hybrids and solids are:Generally lower average thrust but longer burn time.Motors are longer.Center of gravity is further back.More complicated motor assembly.Lower cost per flight (if using club GSE)Little or no regulation.ALWAYS have to use electronic deployment.Are…   Read more»

Same as between 38mm solids and 54mm solids. More impulse. 38mm goes from H-I (some very low J’s) and 54mm goes from J-K. I do have the full SRS 38 and 54mm set that I loan out.Edward

RATT Works, Hypertech and Contrail still do. My recommendation would be RATT Works. Simple and easy to work with. Less parts and Dave knows what he is doing. If you can find a set of SRS hardware (29, 38 or…   Read more»

Mike,Do you know if the white flowers are blooming? I remember being out on the prairie last time and it was amazing.Edward

What size are you needing? I have a solution that works very well for single point of retention.

You’ll have to get permission for Hughes. 10+ years ago I launched there but also had the authorities show up a couple times.Edward

I’ll contact them and see what they are thinking – I’m guessing CANSAT or something similar might good for them.Edward

I wandered around 1st season in Unit 80/81. Tracked a monster Estes Park sized elk for 8 hours and 10 miles until it got dark. Never had a clear shot. Enjoyed the walk though :)Happy trails!

Alternate:2 rockets. Combined mass of XYZ. One rocket must weigh twice the other rocket. Total motor impulse combined of XYZ/4. Combined altitude goal of XYZ*2. Each rocket much reach an altitude of XYZ/2.Example.2 rockets, combined mass of 500 grams. Total…   Read more»

I would think that we could clean the equipment up before one of big launches next year. No use to clean it and then have it get wet and dirty at the winter launches.Edward

I used to launch at Hughes Stadium. I asked Facilities and they were cool with it – even came out for a few launches. Then someone up the food chain didn’t like it and didn’t allow me. This was a…   Read more»

It was a go last time I heard. I thought it got mentioned in the O’fest cancellation e-mail.Edward

With global warming, wait, climate change, wait, some trendy name to motivate the masses and redistribute wealth the past 4-5 years the term ‘Fly early and fly often’ has been true. Best to fly at the beginning of the season…   Read more»

I have a friend who does oil work out on the Pawnee and he said their rig by Grover has seen over 4″ of rain this week.Edward

For those doing the rain dance – you can stop now. I’ve had over 4″ here in Fort Collins. Just last night in Aurora my parents got 4″+ with over 12″ since Monday. Next year please do the dance so…   Read more»

What altitude are you looking at? Why not just float up there with a balloon?Edward

Option A is more bearable if you substitute Cream of Wheat. 🙂 I helped a friend get his box springs down the stairs also. We invested in a couple sheets of 3/8 drywall to put up so we didn’t gouge…   Read more»