Monday, May 26, 2014

Launch! Schoolyard, May 25, 2014

This was my last chance to launch before a two month contract in Cancun, Mexico. I leave on Saturday.
The heat has arrived in Florida and I worked up a sweat chasing these down, even at 7:00 a.m.

I like to fly something small first up to test the controller and check for any wind.
The Quest Cobalt ORANGE works well with a Quest A6-4 engine.
This one got higher than I thought, maybe 300'. A 12" Odd'l Rockets parachute easily pulled out of the hollow nose cone base.
The inset shows how close it landed to the basketball court.




For some reason I have trouble following the boost phase of the Estes GYROC clone with an A8-3. I picked it up right at apogee.
Launch was probably about 300' with the typical fast spin after the engine popped out.
There is a reason for the blunt nose cone on the Gyroc. It hit the ground and bounced!







This was my first flight of the Estes SR-71 BLACKBIRD with an Estes B6-4. I should have used a B6-2! Altitude was estimated at 250'.
The model was nose down when the ejection went off.



At ejection it was a tangled mess, the 18" red parachute never had the chance to fully open. A shroud line was under a rear nozzle, another line under the launch lug. No damage though.





This model never really got a name, built from a free kit from Semroc. The original Squire kit had many fin possibilites.
It was featured on the old "How To Build Model Rockets" site now on the NAR website.

The H.T.B.M.R. flew to 300' with an Estes A8-3.
Full Odd'l Rockets parachute deploy and no damage on recovery.



Here's what I really wanted to flight test, a new prototype Odd'l Rockets design called the LITTLE GREEN MAN. 
It flew twice, once with an Estes A8-3 then a B6-4.
The A8-3 ejected at a low apogee. This model is better suited to a B6-4  and C6-5 engine, like the Pigasus.
It's stable, showing with a slow turn on the B6-4 engine. The B6-4 probably got it to 325'.
There's drag from the upturned feet. New prototypes will have less of a down angle on the toes.

Six up, six down with two stable flights on the new Little Green Man. A successful morning.

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