I made a hundred or so from One of Skylighters kits.
They were not very reliable. Dont know if I did something wrong or not.
I threw them all away.
At a buck or so a piece from Tim/Joe I found the time,
and Lawn Darts were not worth it. 😉

Scott is right on - use a commercial ematch for your dual deploy. Less current and MORE reliable. The quickburst stuff is maybe OK for ignition, but be careful using them for ejection!

Hey Scott,

So your using the j-tek? What battery do you like to use?

Just getting my feet wet, with dual deploy.

Hey Scott,

So your using the j-tek? What battery do you like to use?

Just getting my feet wet, with dual deploy.

J-tek?? Whats that? What ever joe is selling. 😉 I bought forty the last time.
So they last a while. RRC2 mini with a 9 volt.

Hey Scott,

So your using the j-tek? What battery do you like to use?

Just getting my feet wet, with dual deploy.

J-tek?? Whats that? What ever joe is selling. 😉 I bought forty the last time.
So they last a while. RRC2 mini with a 9 volt.

I like the Quest Q2G2 ignitors. They require much less current than the jteks or mteks, they are inexpensive and available via mail order. No LEUP required. I have used or tested about 100 Q2G2s and have only seen one that was out of spec, and it could be caught with a pre-launch resistance measurement.

I think he does.

Thanks for the QC checks Adrian. A 1% failure rate that can be screened by resistance measurement is easy.

I have built 30 of the Quickbursts. I needed to get a fuse for my ohm meter, so I will not be testing them until this week end.

The Quests may be a great way to go.

Where'd you find them?

Hey Scott,

So your using the j-tek? What battery do you like to use?

Just getting my feet wet, with dual deploy.

J-tek?? Whats that? What ever joe is selling. 😉 I bought forty the last time.
So they last a while. RRC2 mini with a 9 volt.

I like the Quest Q2G2 ignitors. They require much less current than the jteks or mteks, they are inexpensive and available via mail order. No LEUP required. I have used or tested about 100 Q2G2s and have only seen one that was out of spec, and it could be caught with a pre-launch resistance measurement.

Much less than the e-matches? Really? I thought the all-fire current was about the same. I know the e-matches have an all fire current of 3/4 of an amp or so, and will often fire with less, but I don't know the details on the Q2G2.

The all-fire current for the Q2G2s is about 0.2 Amps. They can be ordered directly from the Quest website. Q2G2s work pretty well for igniting composite motors too, if you dip them in pyrogen like Magnalite. I'm planning to use dipped Q2G2s for high-power staging this summer.

Where weight and space is not an issue, for staging and air starts,
I use a 'Perfect Flite' MT3G with a six pack of AAs. That
will light almost anything. That way I can use the ignitors
that came with the motors.

Also the new Missile Works RRC2 Mini can take more
than one battery. A duel battery configuration.

The MT3G did light three J285s in air. Also CTI motors
are known to be very easy to light.

Be aware that the Quest Q2G2 ignitors, depending on the launch system, will ignite on a continuity check. This has not occurred with the NCR system but ask Tim about a launch at Springfest that filled his shorts. I particularly like the fact that Quest will sell a 24 pack of ignitors in the short size and 6 packs of the long. Great replacements for Copperheads in most instances.

Joe,

Will they go off when we power up our altimeters? I'd like to see if they work for e-match deployment charges.

Will they go off when we power up our altimeters? I'd like to see if they work for e-match deployment charges.

No. E-matches are used for deployment and altimeters are always "e-match safe." Otherwise, just about all of us would have gone ka-bloey by now, technically speaking. As well as any launcher I've ever built, since e-matches came out anyway. Simple circuitry. I have an old FSI e-match for igniting a Mach 1 Dart (which I still have on an old FSI launcher in my office downstairs :)... These are very good questions, L_S.

The standard answer would be NO, but then it might depend on the altimeter. One of the electronic geeks could answer this better than I can but NO. The Q2G2 ignitors should be safe to be used for deployment charges unless your avionics are powered by a 12 volt battery. FWIW, the specs on the J-Tek's - Bridge Wire Resistance - 1ohm plus or minus .2 ohms, Maximum No-Fire Current .30 amp. Minimum All-Fire Current .75 amp, Recommended Min. Firing Current 1.00 amp, Recommended Nominal Firing Current 1.25 amp, Maximum Test Current .04 amps. I don''t have the specs on the Q2G2's.

Nicely said, Joe. "Normal" e-matches won't ignite, BUT if you find out differently, as with the Apogee ones, PLEASE let us know. Most, if not all of us, don't use more that 9 volts to set off the charge. A resistor is all that's needed. But... just let us know...