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Last updated: Nov 7, 2006
Site hosted courtesy of the
Minnesota Rocketry Network
Alan Estenson, Webmaster
 

November 4, 2006 launch report (11/7/2006)

On Saturday, November 4th, MASA held its eleventh launch of the year. The launch was held at the sod farm near Nowthen.  This was a bonus launch; the regular October launch had been cancelled.

Even with the comparatively mild November weather, turnout was light.

Thanks to everyone who served helped out!

A few of the flights:

MASA members - please send in your thoughts about the launch! 

Alan Estenson writes:

All in all, Saturday was a pretty nice rocket-flying day for November.  It was chilly in the morning, but we eventually saw some sunshine later. The afternoon seemed milder and more comfortable. Winds were light, out of the east to southeast, and ranged from nearly calm to maybe 5mph.  Still, turnout for this bonus launch was small. As a bonus for this bonus launch, all the corn was gone!!!

I flew my tube-fin rocket, "Starstruck VI" on an H128W-M. It was a very nice flight. It landed towards the north end of the north field.

My "big" flight for the day was "It's the Great Pumpkin Rocket, Charlie Brown". This creation started life as a light-up lawn decoration that I purchased at Menards. It's made of blow-molded orange plastic and looks
like a stack of jack-o-lanterns. The plastic pumpkins act as an aerodynamic shroud and one of them as the nose cone. Inside is the true rocket - built around 3" LOC tubing with a 38mm motor mount. The fins are big pieces of clear 3/16" plexiglass (cut from pieces that I bought years ago at Ax-Man). It needed more than a pound of nose weight to put the CG well in front of my guesstimated CP location. The entire rocket (without motor) ended up weighing over 7 pounds! Recovery was with a Rocketman R7 chute.  I flew it on the biggest motor that I had left - an I211W. Based on rough simulations, I drilled the delay down to about 4 seconds.

Liftoff was great! (The sim had said 6-7 g's.) The flight was straight and true. Ejection was early. I should have tried more for a 5 or 6 second delay. Recovery was fine, and it landed on the soft dirt of the next field. For something so silly, and bulbous, and non-aerodynamic, it flew very nicely. Assuming that I'll be able to get a motor, I'll have to fly it again some day. (An I285 Redline would be cool!)

My third and final flight for the day was my LOC Hi-Tech on an H148R-M.  This was a very nice, very high flight.

Glen Overby writes:

Some pictures:

http://reality.sgiweb.org/overby/

under Model Rockets, the 'November 2006' link has pictures from Saturday's launch. I also put the September 2005 link back (it got lost).

My first flight was of a semi-scale model of the Sandia Tomahawk on an old G motor I bought earlier this year. The ejection charge didn't fire (but the delay grain burned) and the rocket made this loud "WOOSH" sound just before the Pop+Crack of impact on the dirt road. The altimeter (flown as a payload only) was destroyed. I never found half of it's parts.

My last flight of the day was pretty nice. It was a scratchbuilt rocket on a D9-4. I have been avoiding flying those motors after some bad experiences with rockets that were too heavy for the motor, but with the right (small) rocket they aren't that bad.

The Details:

Full launch tally (in Adobe Acrobat PDF form, requires version 6 or newer of the Acrobat reader)

The totals were:  44 flights, 50 motors.  The cumulative total impulse was 2884 Ns with an average total impulse of 57.7 Ns.  The motor breakdown follows:

Type

# Burned

MicroMaxx 0

1/4A

0

1/2A

1

A

1

B

11

C

16

D

9

E

1

F

0

G

4
H 5
I 1

J

1

(Alan Estenson)

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