Ellis Mountain E-12 SU

[bmhiii]

I just picked up a 3-pack of the Ellis Mountain E-12 SU motors. Does anyone have any experience with these?

Thanks,

bmhiii

 

[Missileman]

I just got a 3 pack myself.
I am wondering what I am going to use for igniters?

 

[n3tjm]

How much is a three pack?

 

[bmhiii]

Doug,

I got mine at Al's Hobby Shop online. $20.25 for a three pack. No ignitors included.

bmhiii

 

[lalligood]

Pick up a 10 pack of Quickburst Twiggys for $10 at https://www.quickburst.net/ I've used them for EM SU motors & to replace Copperheads in my 29/40-120 reloads. They have worked the first time everytime for me

HTH,

 

[shreadvector]

Do they have CSFM Classification - and if so, what are they classified as?

Originally posted by bmhiii
I just picked up a 3-pack of the Ellis Mountain E-12 SU motors. Does anyone have any experience with these?

Thanks,

bmhiii

 

[bmhiii]

Originally posted by shreadvector
Do they have CSFM Classification - and if so, what are they classified as?

Fred,

I'm afraid I don't know what CSFM Classification is. What is it? The Ellis Mountain website says they're Tripoli TMT certified.

bmhiii

 

[DynaSoar]

Originally posted by bmhiii
Fred,

I'm afraid I don't know what CSFM Classification is. What is it? The Ellis Mountain website says they're Tripoli TMT certified.

bmhiii

California State Fire Marshal. Obviously, something irrelevant to most people.

 

[shreadvector]

https://www.pro38.com/newspage.html#012601

Above is an example of products with CSFM Classification as "High Power Rocket Motors".

Estes and Quest motors are CSFM Classified as "Model Rocket Motors".

Originally posted by bmhiii
Fred,

I'm afraid I don't know what CSFM Classification is. What is it? The Ellis Mountain website says they're Tripoli TMT certified.

bmhiii

 

[daveyfire]

Originally posted by DynaSoar
California State Fire Marshal. Obviously, something irrelevant to most people.

But something very, VERY relevant to those of us flying in the People's Republic of California!

I've wondered about Ellis classification myself... they have some nifty motors, and I heard that What's Up Hobbies sponsored their CSFM certs... is this true? Do the motors have the seal?

 

[r1dermon]

wow, california is insane...dont get me wrong, i love the place, but they have more laws than MA....and thats a REALLY tough thing to accomplish.

 

[GL-P]

Just don't ever use FireFly igniters!!!

 

[bmhiii]

Originally posted by daveyfire
But something very, VERY relevant to those of us flying in the People's Republic of California!

I've wondered about Ellis classification myself... they have some nifty motors, and I heard that What's Up Hobbies sponsored their CSFM certs... is this true? Do the motors have the seal?

David,

I do not see any seal at all on the motors. They have "Ellic Mountain Rocket Works", "E12-6", "38 ns", "3.8 sec." and "L030" on the label. Not sure what the "L030" is. The rest seem self explanatory.

bmhiii

 

[cls]

Just don't ever use FireFly igniters!!!

really? why not?

just wondering, thanks.

 

[solrules]

Originally posted by bmhiii
David,

I do not see any seal at all on the motors. They have "Ellic Mountain Rocket Works", "E12-6", "38 ns", "3.8 sec." and "L030" on the label. Not sure what the "L030" is. The rest seem self explanatory.

bmhiii

Probably batch numbers so they can recall certian motors if the batch of propellant is bad.

 

[GL-P]

With the batch I have at least, I figure the resistance is high cuz the wires are so tiny so the insulation melts and the wires contact and short out. I've only ever had one light in about 7 firings. Same problem everytime. :kill: :kill:

 

[cls]

apologies for the topic drift away from EM E-12 SU motors ...

about firefly ignitors:

With the batch I have at least, I figure the resistance is high cuz the wires are so tiny so the insulation melts and the wires contact and short out. I've only ever had one light in about 7 firings.

what kind of launch controller are you using, what kind of battery V & A, etc.?

my firefly batches say "August 2003" on the package. we have had 100% success with them. the ones I have are very low resistance. only one hitch ever: one club's (capacitive discharge) launcher couldn't sink enough amps in to a cluster (3 in parallel) - they just wouldn't go. the same 3 lit perfectly off a 12v battery at another launch. otherwise, good stuff!

that said I am going to try a few packs of quickburst.

 

[GL-P]

Sorry guys for hijacking the thread!

We have a custom bulit controller using a car battery. No problems with other igniters.

Hopefully it's a bad batch...

 

[ghp3]

I just picked up a 3-pack of the Ellis Mountain E-12 SU motors. Does anyone have any experience with these?

Getting back to the original thread, I bought a 3-pack of E12-6 motors at LDRS in July and have flown two of them in my scratch-built "Mutt", a 36" BT-60 airframe rocket with long, thin, tapered fins, weight about 6.5 oz w/o motor. Both motors flew great! Reliable ignition (using a QuickBurst Twiggy ignitor), long burns, accurate delay. The E12 took Mutt to over 1200' (as measured by an onboard PerfectFlite Alt15K/WD recording altimter), compared with 450' on a D12-5, 750' on an E9-6 and 1175' on an E18-7 RMS.

I'm sold. They are available from Al's Hobby and Magnum (maybe others.)

George
Tripoli Pittsburgh

 

[bmhiii]

Originally posted by ghp3
Getting back to the original thread, I bought a 3-pack of E12-6 motors at LDRS in July and have flown two of them in my scratch-built "Mutt", a 36" BT-60 airframe rocket with long, thin, tapered fins, weight about 6.5 oz w/o motor. Both motors flew great! Reliable ignition (using a QuickBurst Twiggy ignitor), long burns, accurate delay. The E12 took Mutt to over 1200' (as measured by an onboard PerfectFlite Alt15K/WD recording altimter), compared with 450' on a D12-5, 750' on an E9-6 and 1175' on an E18-7 RMS.

I'm sold. They are available from Al's Hobby and Magnum (maybe others.)

George
Tripoli Pittsburgh

Thanks, George, just what I was looking for, comparing them to an Estes D and E. I think my 24mm Fat Boy is going to go for a heck of a ride!!!

bmhiii

 

[stevecarr]

Copperheads will ignite these motors. That question was posed at our last launch, and yes they do work .