04-10-2019, 03:15 AM
|
 |
Master Modeler
|
|
Join Date: Jan 2009
Location: Fairbanks, Alaska
Posts: 6,507
|
|
Quote:
|
Originally Posted by Doug Sams
FWIW, I've built and flown several BP powered stagers with clusters in the 1st stage for getting it off the rod with good speed, and had good luck with all flights. I always take my time and make sure the nozzles are clean, the ignitors are seated fully in the nozzles and not shorted, and that all the ignitors are securely connected.
No doubt, you want a lot more than 4 AA's 
Doug
. |
Normally, yes--*but*... If you used a launcher arrangement like the Centuri Servo-Launcher (see: http://www.ninfinger.org/rockets/no...a/72cen052.html [one can do the same thing electrically with a relay launch system, so that the leads from the ignition batteries are only 6" or so long, reducing the voltage drop along them to almost nothing, for all practical purposes]), four AA batteries could probably fire three or four low-power Estes Solar Igniters and/or Quest Q2G2 Igniters with no problems at all. The Servo Launcher only needed two Photo-Flash D batteries. |