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I've always been concerned that the starter (ematch, igniter, or whatever) would open upon firing, like every Estes igniter I've used, so parallel is what I will continue to use.As an EE, I have to question whoever wrote up the…   Read more»

David P. told me this on Thursday and really I didn't think about it as low power I always did parallel. Is this due to the fact that an e-match doesn't actually burn through so the connection to the others…   Read more»

n series wiring, there is one single loop for the electricity to flow from the red terminal of the Firing Module cue, through all e-matches or igniters, and back to the black terminal. Each e-match receives the full current. The…   Read more»

With e-matches and Cesaroni motors, you are better off putting the ignitors in series, rather than parrallel.  At least, that's how I have always had the clusters in my falcon light.   E-matches are typically used in the pyrotechnics business…   Read more»

Exactly.

Thanks Ken. I think I am picturing what you are saying. Basically make it so the pull on the ignition wires doesn't significantly happen until it is much higher on the rail. 

Most has already been covered above.  I wouldn't bother with any additional pyrogen dip for CTI motors.  I've lit clusters of them on the ground and in the air (3 38mm CTI's started with a Perfectflite minitimer and 9V battery)…   Read more»

correction to my post. CTI come with e-matchs. Not dipped. But I have never dipped them.

Thanks Mike! I might take you up on that unless I can pick some up from the new moto-joe crew… Simple design as I have never HPR Clustered before. Blue tube, 3 29mm engines in a cluster. I did get fancy…   Read more»

Great choice on using CTI H151-15A. Cti has a black powder pellet that starts the ignition process after the ignitor. Probably will not need anything else. At least I am pretty sure the 29mm do. The ignitors supplied come pre-dipped.Use…   Read more»

Yep, good idea. It’s a muddy, wet place today.Let’s postpone until next weekend – Saturday the 16th, from 9:00-noon.Ed

With wet conditions and mud getting slicker and ground softer, might we look at May 16 or 23 instead for equipment cleanup?? I am sure most of us doing the cleanup would appreciate dryer and more pleasant conditions. Ken S.

Three videos here, thanks to Don. Includes one spectacular shred. Full-screen the first vid to see all the gory details.http://www.rocketryforum.com/showthread.php?125408-How-NOT-to-do-rear-ejection

Missed you Mike.  Prairie not quite as green as hoped for but Boy Scout Troop 78 still managed to fly the majority of the 121 flights for Saturday.  Wind and a spit of rain late Saturday afternoon. Still, there's a…   Read more»

Just a remider. I will be towing for the June launch. Both ways. i know it issome time off but just giving the heads up.I am off work before,during and after the launch. Woo Woo

Jack, You are awesome!  I'll let the Darrington's know.   I probably won't make it up until Saturday morning, but will be shooting for earlier rather than later.  

Give me a call, and we can meet up.  I'm in SW Longmont, work in Boulder.(303) 870-6747 (cell)-Ken

Ken, I'm interested as well – if you still have them.Thanks,Ed 

Well, would love to but ended up having to help some one move this weekend. 🙁  So, it will have to be next month…. Thanks though! Also, I just got my permit from the Longmont Fire Department allowing me to launch…   Read more»

Bring a ssystem out on Saturday – we'll put it to the test… Thanks kevin.