blackjack2564
Crazy Jim's Gone Banana's
Update:
Sustainer finished.
One with 29mm motor mount. Back-up with 38mm motor. [minimum diameter] These both were built to allow for wider variety of motor combos to attain out target spin rate.
Careful viewing and you can see the 1 degree cant/offset of fins.
Telemega used to determine spin rate.
Small package that does it all. GPS allowed for an easy find of tiny rocket that hit 4,000ft.
Definitely going to need more of these altimeters!
SUCCESS....spun like a top!
First flight of sustainer only. We used a set of Fly-a-way guides. These avoided the need for rail buttons and worked perfectly for this application. [spinning a rocket].
Would have been stuck, to find another solution without them.
First flight was on a 4-grain White Thunder [CTI H-255] [Thanks Wildman for these in this troubled time]
1 sec. burn time, 80 lbs. of thrust in a 2.2lb rocket. Gone in 60 nano-seconds, too fast for video.
It was a bullet with that thrust.
Charlie pulled the data file and VOILA...we hit the nail on the head....12 revolutions per second! [720 rpm] and 4,000ft altitude. This was Saturday. Spun, flew straight & recovered close.
We are vilified!! Proof of concept for sustainer...check!
Sustainer finished.
One with 29mm motor mount. Back-up with 38mm motor. [minimum diameter] These both were built to allow for wider variety of motor combos to attain out target spin rate.
Careful viewing and you can see the 1 degree cant/offset of fins.
Telemega used to determine spin rate.
Small package that does it all. GPS allowed for an easy find of tiny rocket that hit 4,000ft.
Definitely going to need more of these altimeters!
SUCCESS....spun like a top!
First flight of sustainer only. We used a set of Fly-a-way guides. These avoided the need for rail buttons and worked perfectly for this application. [spinning a rocket].
Would have been stuck, to find another solution without them.
First flight was on a 4-grain White Thunder [CTI H-255] [Thanks Wildman for these in this troubled time]
1 sec. burn time, 80 lbs. of thrust in a 2.2lb rocket. Gone in 60 nano-seconds, too fast for video.
It was a bullet with that thrust.
Charlie pulled the data file and VOILA...we hit the nail on the head....12 revolutions per second! [720 rpm] and 4,000ft altitude. This was Saturday. Spun, flew straight & recovered close.
We are vilified!! Proof of concept for sustainer...check!
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