This came to me as I was waking up the other morning, and I got right at it. No fins yet, but the rest of the construction was done with spare parts. I'll add photos when I get the fins on. Note the thrust ring at the bottom end of the booster for positive stage separation, just like the old Estes Apogee II.............

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BRILLIANT!!! In a deranged sort of way, but still brilliant.

__________________
Bill Eichelberger
NAR 79563

http://wallyum.blogspot.com/

I miss being SAM 0058

Build floor: Estes - Low Boom SST Semroc - Marauder, Shrike, SST Shuttle

In paint: Canaroc Starfighter Scorpion Centuri Mini Dactyl Estes F-22 Air Superiority Fighter, Multi-Roc, Solar Sailer II, Xarconian Cruiser Semroc Cyber III

Ready to fly: Estes - Solar Sailer II Semroc - Earmark

Thanks, Bill. Yeah, it just occurred to me that I never saw a Birdie go really high, and never heard of anyone staging one. So, it's just something that has to be done. The bonus with the Birdie is that, no matter how high you send it, it still recovers on the launch field. As Martha would say, "It's a good thing".

By the way, additional photos coming as soon as I get the fins on.

Cool. I can't wait to hear how it performs.

I did stage a Birdie a few years back, but your configuration should fly much higher than mine! This thing has a lot of drag in the booster and sustainer.

It's a C6-0 to A10-3T. The rocket was built for the 2009 EMRR Challenge, 2 Stage Kitbash.
An Odd'l Rocket Birdie joined to a Squirrel Works Pie in the Sky.
It's name: Blackbird Baked in a Pie. (The Birdie was spray painted black back then)

The A10 is pushed into the top of the C6-0 about 1/8".
It's flown three times. Every time staging went perfectly.

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__________________
Hans "Chris" Michielssen
Old/New NAR # 19086 SR

www.oddlrockets.com
www.modelrocketbuilding.blogspot.com
http://www.nar.org/educational-reso...ing-techniques/
Your results may vary
"Nose cones roll, be careful with that."
Every spaceman needs a ray gun.
Look out - I'm the Meister Shyster!

Cool! What kind of altitudes did you get?

Joe

Fins on............

I designed the fins and placed them so that at separation the booster would have as much fin area in front of the CG as behind (sort of). Hopefully it will tumble..........

By the way, they don't look it, but those fins are papered (white tissue paper applied with CA). It's amazing how much stiffness and strength this adds!

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I have no idea how high it went!
I would guess 250'?

I was just glad the staging was clean with no tip off and it was stable.
The second time I tested it at the schoolyard I lost track of the Birdie second stage.
I walked a pretty large area and couldn't find it.
I gave up and found it on the way back within 25 feet of the launcher.

__________________
Hans "Chris" Michielssen
Old/New NAR # 19086 SR

www.oddlrockets.com
www.modelrocketbuilding.blogspot.com
http://www.nar.org/educational-reso...ing-techniques/
Your results may vary
"Nose cones roll, be careful with that."
Every spaceman needs a ray gun.
Look out - I'm the Meister Shyster!