View Full Version : MMII powered Estes 220 Swift
Johnly
9th January 2011, 08:26 AM
Well we had a fun launch today, but the flight ceiling wasn't looking too good to I purchased a 220 Swift kit at the local hobby shop on Friday and machined some MM CR to fit BT-5. I decided to try popping the nosecone off the rocket, so I attached the two pieces with 10" of Nomex cord. The flight results were really nice. The motor zipped the little rocket off the pad, the small MM ejection charged was able to separate the nosecone from the airframe,the delay time was close to perfect, and the altitude was easily over 100'. It turns out that this modification makes an excellent small field flier.
John
Gillard
9th January 2011, 08:35 AM
MMX motors are definately the way to go with the tiny estes rockets that are usually a one time fire and forget rockets.
what did you do for motor retension?
Micromeister
9th January 2011, 06:56 PM
I do Like retro fitting some of the smaller BT-5 Kits for Rear ejection pod, Teflon streamer recovery as Gillard mentioned to get them back for more then a flight or two!
Swift,Quark and Mosquitos are favorite conversions.
MarkII
9th January 2011, 11:46 PM
I did that with a Mosquito clone and a FlisKits Tumble Weed. I used motor mount parts from FlisKits for both conversions. I just have the motor eject from the Mosquito and let it recover as it was meant to do. It doesn't go out of sight, but it still gets up there, over 100 feet. The great thing is, I can find it afterward because I can follow it down and see where it lands.
Here's my description of my Tumble Weed conversion. (http://www.rocketryforum.com/showthread.php?t=18056)
Micromeister
13th January 2011, 03:54 PM
I did that with a Mosquito clone and a FlisKits Tumble Weed. I used motor mount parts from FlisKits for both conversions. I just have the motor eject from the Mosquito and let it recover as it was meant to do. It doesn't go out of sight, but it still gets up there, over 100 feet. The great thing is, I can find it afterward because I can follow it down and see where it lands.
Here's my description of my Tumble Weed conversion. (http://www.rocketryforum.com/showthread.php?t=18056)
Adding the shockcord and streamer takes all the fight out of tracking where any of these rear eject Bt-5 models lands. If you happen to have more the mowed grass to deal with letting them streamline in or Noseblow only have a way of hiding down in the grass getting lost.
Most of the time at least the streamer stays up long enough to get them back.
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