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That was before RPN and even before TI's first LED 5 function calculator. That altitude computer was only suitable, at best, for a one time use classroom instruction. Altitude reduction from tracking data was best done on a slide rule. (or much later on a programmable calculator with a print...

Do not use the Certified total impulse. Use the Average total impulse from the test data.

The old C5-3 has been used as a booster motor, and the three second delay was effective in increasing altitude. YMMV

Whitmore's B14 data shows Burns 13-16. So what happened with Burns 1-12? Anomalous, too ugly to show?

I'd be tempted to do a complete disassembly and autopsy, before cremating the remains, but that is a lot of work. I'd probably just put it in the city hazardous waste stream and watch them puzzle over it.

I remember a trip I planned with my family to NARAM 14. We had four drivers (I had a learners permit.) and planned to mostly drive night and day, while taking in a few quick scenic stops. I had planned to go past Estes Ind., at the wrong time, but I thought I might snap a photo from the...

A lesson was learned?

I always wanted to try something like that. Although I was thinking of a disk of flash paper secured with a Sure-Shot. Is quick burst the best material to paint on the nozzle of a BP motor to increase reliability of upper stage ignition? I'm not sure I buy into that photon ignition...

If you remember stomping on the gas pedal to set the choke before starting the car.

What happens if you install the igniter upon receipt of the motor and let the grain expand around the igniter with storage age? Does it render the igniter useless, or cato? How long could it extend the useful storage life of the SU motor?

My understanding is that carnivores (e.g. cats) are bad eating, while herbivores are mostly good eating. However, in the foraging sense, cats are easy to come by.

Do you have good recipe for cats?

Peabody and the Wayback Machine

I would expect standard Estes BT-80 to work well without any reinforcement, but I don't know your building skills, and Estes tubes may not be as good as they used to be. In any event, it is max q that you need to worry about, not acceleration.

Hmm, chain saw life hacks. I saw a movie where the power went out and they had to start a pick-up truck to escape after they had drained the battery. They used a chain saw to start truck motor. The movie never showed or explained exactly how they did that. That is an interesting life hack...

The best thing about the swing test is that if the RSO refuses to let to let you fly over stability concerns, you can demonstrate the swing test and if you pass he will let you fly.

Ah, the rope test. I've seen a college athlete wind up the heavy hammer.

It's about time. :( I remember interviewing with MD in early '78. I wanted to work on Delta and similar launch vehicle projects. The recruiter said it was just a bunch of grey beards winding things down until Shuttle. He could not be convinced otherwise, but I did get on job on missiles in...

The Wizard of Oz. The wizard was fine, but the wicked witch and her flying monkeys...

Nothing will save you from a disaster like that; forget apogee and implement the safest flight abort.