I drove to the Orlando ROCK club launch afterward the early morning June 10 soccer field launch. I delivered a large order of Odd'l Rockets kits and supplies to Roger of jonrocket.com.
Pigasus and Little Green Man kits are available again!
I did two more tests of the Odd'l Rockets SPUTNIK with 18mm B6-2 and C5-3 motors.
Both were very stable and high compared to the usual 13mm A10-3t motors.
After five test launches - Some considerations -
1. 18mm motors are an inch longer which doesn't leave much foam above the top of the motor. The second flight today (June 10) blew the bulkhead disk and top off the Styrofoam ball. The 18mm ejection charge is more powerful than the original 13mm engine.
2. The larger, heavier motor casing could be considered a danger when ejected.
3. That 3/4" cavity is more difficult to drill compared to the 13mm mount.
So the Sputnik kit will remain a 13mm rocket.
It's still a great odd-ball design, an easy build and good "first launch of the day" rocket.
Picture this:
ReplyDeleteA 6-inch ball with three body-tubes glued together side-by-side in the ball. Long middle tube is the MMT. Shorter side tubes hold parachutes. Allow the eject gasses to flow from MMT to side tube and rear-eject the chute. you want it coming down ball first.
Glue tubes together. Drill three holes in ball and insert the tube assembly. Gorrilla glue will expand and fill gaps.
Got plans if interested.
ITSRUF
Thanks Anonymous,
DeleteSounds interesting! But, it'd be a bear to drill and set that assembly into the ball. The original Moonik-One had a chute eject out the side of the ball. A very tricky angled tube joint. http://www.spacemodeling.org/jimz/eirp/eirp_14.pdf