THAT's the igniter?

[Peartree]

Found this interesting on Twitter this morning and I thought some of you would be similarly interested.

The garbage can sized thing on the crane is the igniter.



Orbital ATK technicians perform igniter installation on the forward segment of the @NASA_SLS EM-1A booster

 

[dcullen]

Hey, orbital has Head End Ignition, how about it Aerotech, CTI ?

 

[mpitfield]

Hey, orbital has Head End Ignition, how about it Aerotech, CTI ?

Exactly, if they can do it why can't we

 

[GregGleason]

Hey, orbital has Head End Ignition, how about it Aerotech, CTI ?

I'm not sure that the issue is with the manufacturers. I believe it may be with the NFPA docs or testing/certifying organizations.

I believe most professional aerospace solids have head-end ignition, as it's the proven way to go.

Greg

 

[Mugs914]

Found this interesting on Twitter this morning and I thought some of you would be similarly interested.

The garbage can sized thing on the crane is the igniter.

Starter... That thing is a STARTER. We wouldn't want to offend... Well... Whoever it was that was offended by "igniter" in the first place.:confused2:

They are going to need a TON of TP wadding to tamp that thing in, though...



(Very cool pic John, thanks for posting!)

 

[Steve Shannon]

Nothing in our safety codes or NFPA specifically prohibits head end ignition. One problem is how to comply with the rules that require insertion of the igniter either at the pad or at a preparation area that's a safe distance from uninvolved parties. Another problem has to do with the practical challenges of system testing a rocket before final arming. That's something I didn't understand well and had to have Jim Jarvis explain.
Manufacturers are interested in this as well.


Steve Shannon

 

[dhbarr]

Exactly, if they can do it why can't we

AT/CTI: Give us a few billion in gov't contracts, and we'll happily hire enough lawyers to make that happen.

Loki: I made a 75.6mm N; it's red, and the HEI works fine as EX

 

[dlb]

Nice.. I want one!!!

 

[3stoogesrocketry]

Ah yes , nothing like a baby "Q" to get your motor up and running .

Eric

 

[BuiltFromTrash]

Lol, that's more rocket fuel then some of us will ever use in our lifetime.

*Cough* Igniter *Cough cough*

 

[stealth6]

Yes, but will a 9V battery be enough? (in case I want to airstart it).
ssix

 

[Lowpuller]

Aren't we doing head end ignition since we shove the igniter all the way to the top of the motor, or am I seriously confused???

 

[tim cubbedge]

Aren't we doing head end ignition since we shove the igniter all the way to the top of the motor, or am I seriously confused???

Head end ignition implies inserting starter (igniter) into motor from the forward end of motor as opposed to the aft end.

 

[tomsteve]

what letter designation would that motor be?

 

[BDB]

what letter designation would that motor be?

According to the Wikipedia the Space Shuttle SRBs were AD motors: https://en.wikipedia.org/wiki/Model_rocket_motor_classification. That's just insane.

 

[Nytrunner]

Space shuttle being a 4 "grain" (segment) system.

The SLS is 5 segment and stands solidly in the AE range.
I forget how many thousand mm's those relaods are. Pro3600s anybody?

 

[dr wogz]

I guess that's a "USA only" picture..

(I just see a little black square with an X in it..)

 

[rocketguy101]

I guess that's a "USA only" picture..

(I just see a little black square with an X in it..)

Twitter is blocked at work, so I don't see anything

 

[pcalviln]

I can't be the only one thinking that with large SRB's coming back, the surplus AP will be following soon-ish. What was the lag time when the shuttle program was going?

 

[marcusSRG]

AeroTech just released a head end ignition system.

 

[tim cubbedge]

AeroTech just released a head end ignition system.

Got a link?

 

[Steve Shannon]

https://www.rocketmotorparts.com/Low_Cost_Head_End_Initiator/p1577809_16501656.aspx

 

[noffie79]

$30 each and not reusable. No thank you.

 

[tim cubbedge]

$30 each and not reusable. No thank you.

That plus it's EX (but I guess all head end ignition is)!

 

[rocketguy101]

here is some youtube goodness

[video=youtube;XIJG0klUVhw]https://www.youtube.com/watch?v=XIJG0klUVhw[/video]

[video=youtube;H0BgLPq6PkE]https://www.youtube.com/watch?v=H0BgLPq6PkE[/video]