I've never used an ignitor plug. Instead, I secure my ignitors with a small, rolled up ball of recovery wadding, pressed in firmly with the end of a launch rod. Works perfectly.
That's real "old school" technique: I did it that way during my first foray into model rockets, back in the 1970s. We also could use a bit of masking tape to pin the leads against the engine wall. (Back in the hobby as a retiree. I like the igniter plugs just fine.)
This is how Estes instructed to do it back in the 60’s. I still do it this way, 50 plus years later! Sometimes I also use a Cobra fireworks firing module with an ematch as my igniter. ua-cam.com/video/SZbK54rJB24/v-deo.htmlsi=QusKB-fByzdMce9Z
Excellent demonstrations. A few other techniques I like that may be worth trying: Instead of using the method demonstrated here, I like to insert the igniter, insert the plug while allowing the wires to bend gently, and THEN bend them over more fully. I have sometimes found that bending the wires early gives the pyrogen tip an opportunity to wiggle free of the propellant, resulting in a burned igniter but no go. This method is the one listed in the Estes instructions. I sometimes also cut the little bit of paper so that I can move the wires much more independently, sometimes hooking up the clips to the side of the rocket instead of underneath it. This works well for rockets that want to sit low on the rod, such as those with forward-swept fins. A few rocketeers dip their igniters in silver paint from Estes. The aluminum powder in it produces a more vigorous flame than the goo will by itself. For almost foolproof igntion, use electric matches. They can be a bigger expenditure at about $1 apiece, but they'll get your rocket going with close to 100% reliability and little if any delay between button press and ignition. If you do this, just test them first, make sure that you won't pop them when you check continuity. Also make sure they'll fit in your nozzle. Most will but some won't.
Such a great video! I've launched several Estes rockets, yet walked away from this video having learned something. Good on you posting this tutorial!!!
I had always thought the bridge wire was formed by stretching a single piece of nichrome wire. That was very informative. The rest showed techniques that I have learned and relearned over many years. Happy flights all!
Takes me back to 66'...when i was 12 years old...with my Astron Alpha. Gemini program was still going on and our lil' Rocket Club/ space buffs were as excited as a real NASA launch!
It's a great vid thanks. Tripoli recommends you connect the ignition wire before you put it in the engine thus if it functions it doesn't set off the engine prematurely. So fiddly to do it that way though...
I had no idea there was a bridge wire in the tip. The bunny ear was already a familiar technique, but spacing the wires about 3mm apart near the igniter head was something that never occurred to me. Good stuff!
I’ve always used a small square of recovery wadding that I use to shove into the engine nozzle, using the launch enable key, to hold the igniter firmly in place. I guess I’m still used to the old igniters. This method has rarely failed for me.
Thanks so much for this video! I was crazy about model rockets as a kid and I remember misfires with igniters were common. Wish I knew these tips back then! I am actually introducing my kids to the hobby tomorrow on 7/4 and this was a great resource for hopefully a bunch of successful launches. Happy 4th, everyone!
I thought about adding a small amount of hot glue where the wires tend to touch. In theory it should keep the wires apart. Have not tried it yet though.
I've never used an ignitor plug. Instead, I secure my ignitors with a small, rolled up ball of recovery wadding, pressed in firmly with the end of a launch rod. Works perfectly.
That's real "old school" technique: I did it that way during my first foray into model rockets, back in the 1970s. We also could use a bit of masking tape to pin the leads against the engine wall. (Back in the hobby as a retiree. I like the igniter plugs just fine.)
This is how Estes instructed to do it back in the 60’s. I still do it this way, 50 plus years later! Sometimes I also use a Cobra fireworks firing module with an ematch as my igniter.
ua-cam.com/video/SZbK54rJB24/v-deo.htmlsi=QusKB-fByzdMce9Z
Excellent demonstrations.
A few other techniques I like that may be worth trying:
Instead of using the method demonstrated here, I like to insert the igniter, insert the plug while allowing the wires to bend gently, and THEN bend them over more fully. I have sometimes found that bending the wires early gives the pyrogen tip an opportunity to wiggle free of the propellant, resulting in a burned igniter but no go. This method is the one listed in the Estes instructions.
I sometimes also cut the little bit of paper so that I can move the wires much more independently, sometimes hooking up the clips to the side of the rocket instead of underneath it. This works well for rockets that want to sit low on the rod, such as those with forward-swept fins.
A few rocketeers dip their igniters in silver paint from Estes. The aluminum powder in it produces a more vigorous flame than the goo will by itself.
For almost foolproof igntion, use electric matches. They can be a bigger expenditure at about $1 apiece, but they'll get your rocket going with close to 100% reliability and little if any delay between button press and ignition. If you do this, just test them first, make sure that you won't pop them when you check continuity. Also make sure they'll fit in your nozzle. Most will but some won't.
Yes. E-match if you have an ATF license, or FireWire if you don’t! ua-cam.com/video/SZbK54rJB24/v-deo.html
Such a great video! I've launched several Estes rockets, yet walked away from this video having learned something. Good on you posting this tutorial!!!
I had always thought the bridge wire was formed by stretching a single piece of nichrome wire. That was very informative.
The rest showed techniques that I have learned and relearned over many years.
Happy flights all!
Takes me back to 66'...when i was 12 years old...with my Astron Alpha.
Gemini program was still going on and our lil' Rocket Club/ space buffs were as excited as a real NASA launch!
You do a great job with all your videos!! They are very informative, keep up the good work!!
Thank you!
It's a great vid thanks. Tripoli recommends you connect the ignition wire before you put it in the engine thus if it functions it doesn't set off the engine prematurely. So fiddly to do it that way though...
I had no idea there was a bridge wire in the tip. The bunny ear was already a familiar technique, but spacing the wires about 3mm apart near the igniter head was something that never occurred to me. Good stuff!
Thanks so much. Our first launch was a no go but after watching your video, we had success! My six year old and I. Thank you!
I’ve always used a small square of recovery wadding that I use to shove into the engine nozzle, using the launch enable key, to hold the igniter firmly in place. I guess I’m still used to the old igniters. This method has rarely failed for me.
The original method Estes instructed back in the 60’s, and how I learned it then.
Does it matter what voltage I use for the igniter? Max and Min Voltage.
Great question! Yes, voltage matters. A minimum of 6 volts is required, and 12 volts is ideal.
Thank you for making this video! I had no idea why I had misfires until I saw this!
Lately I have had success with my launches, but a video like this is almost certainly going to help at some point!
Thanks so much for this video!
I was crazy about model rockets as a kid and I remember misfires with igniters were common.
Wish I knew these tips back then!
I am actually introducing my kids to the hobby tomorrow on 7/4 and this was a great resource for hopefully a bunch of successful launches.
Happy 4th, everyone!
Thanks for the instructions! I saw nothing written that described this process in the instructions that came with my rocket or engines.
Awesome tips! Thanks
Did the engine fall out or just used a lot of wadding? 3:56
That's a blob of wadding.
Thanks for the tips
Great video!
is it not possible to give the wires a rubber coating to prevent short circuiting?
How about two very small diameter pieces of shrink wrap? Properly heat gun shrunk around the exposed lead elements?
I thought about adding a small amount of hot glue where the wires tend to touch. In theory it should keep the wires apart. Have not tried it yet though.