AeroTech Open Thread

Advertise with us
the model rocket show
The Rocketry Forum

Help Support The Rocketry Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Too much voltage can "pop" the igniter instead of lighting it. The wire needs to heat and light the pyrogen. If the wire heats too fast and breaks/melts, sometimes not enough heat was put into the pyrogen to get it burning, and the hot gas from the "arc" is only enough to "blow" the pyrogen away from the wire.
Just a thought, you don't say what the circumstances were for the "duds".
 
Duster45 said:
Last weekend I flew my Bruiser on a research L1335 I made from RCS components. 1 1/2 Blue Thunder grain and 1 1/2 Redline grain in a RMS 75/3840. Very pleased with the results as you can see in the pic. 22 lb rocket to 4789 feet. View attachment 488723
Click to expand...
Mikey like its! Awesome color cocktail! Could you post in the Research section the components (grain dimensions, nozzle used etc) and assembly?
 
Duster45 said:
Last weekend I flew my Bruiser on a research L1335 I made from RCS components. 1 1/2 Blue Thunder grain and 1 1/2 Redline grain in a RMS 75/3840. Very pleased with the results as you can see in the pic. 22 lb rocket to 4789 feet. View attachment 488723
Click to expand...
Saw this one! That was a very cool flight. When the LCO called out the propellant combination, I didn't really expect it to be that purple!
 
We are in the process of upgrading our Q-Jet™ motor retail packages to include a NEW initiator holder...the "Q-Pic™"! The first Q-Pics to be produced will fit all 18mm Q-Jets from 'A' to 'D' size. A larger version of the Q-Pic is being designed to fit the 24mm Q-Jets. The colors of the two Q-Pics will be different to allow for easy identification. Q-Pics will be sold in a 6-pack for those customers who would like to use them in previously-manufactured Q-Jets, or with other composite propellant motors with small nozzles. More information will be released in the near future.
Q-Pic Instructions.jpeg
IMG_7224.jpeg
IMG_7225.jpeg
IMG_7226.jpeg
 
Last edited:
AeroTech said:
We are in the process of upgrading our Q-Jet™ motor retail packages to include a NEW initiator holder...the "Q-Pic™"! The first Q-Pics to be produced will fit all 18mm Q-Jets from 'A' to 'D' size. A larger version of the Q-Pic is being designed to fit the 24mm Q-jets. The colors of the two Q-Pics will be different to allow for easy identification. Q-Pics will be sold in a 6-pack for those customers who would like to use them in previously-manufactured Q-Jets, or with other composite propellant motors with small nozzles. More information will be released in the near future.
View attachment 489259
View attachment 489260
View attachment 489261
View attachment 489262
Click to expand...
Very cool and looking forward to getting some of them.
 
I have issues with the nozzles crumbeling with just the heatshrink. Photos show a few examples.

In your instructions #2 .... Press the Q-Pic down firmly.... #3 ... lift the motor by the leads ....

I can't see how this works unless I am REALLY missing something. How do the nozzles not just completely crumble apart if something solid is pushed in.

Note all my C18 and D20 motors were purchased within the first month or two of being released. I am planing on resocking my range box over the holiday sales; hoping the nozzles are better in later production.
20211010_112401.jpg20210923_113826.jpg20210718_212538.jpg
 
Tractionengines said:
I have issues with the nozzles crumbeling with just the heatshrink. Photos show a few examples.

In your instructions #2 .... Press the Q-Pic down firmly.... #3 ... lift the motor by the leads ....

I can't see how this works unless I am REALLY missing something. How do the nozzles not just completely crumble apart if something solid is pushed in.

Note all my C18 and D20 motors were purchased within the first month or two of being released. I am planing on resocking my range box over the holiday sales; hoping the nozzles are better in later production.
View attachment 489265View attachment 489275View attachment 489276
Click to expand...
This is a humidity issue with the nozzle clay that is being resolved. Have you contacted Karl at [email protected]? The Q-Pics work just fine in current production and older motors that have not been affected by excessive humidity.
 
Have there been any updates on K76 availability? Apologies if I missed it.
 
Can someone tell me the difference between the L2200G reload and the M1500G reload? They both fit the RMS 75/5120. Thanks
 
Duster45 said:
Can someone tell me the difference between the L2200G reload and the M1500G reload? They both fit the RMS 75/5120. Thanks
Click to expand...

The original motor for the 5120 case was the M2030. There were some reliability issues with that motor and it was taken out of production. The L2200 is the de-tuned version of that motor. I believe the cores were opened up a bit, so it went from a baby M to a full L. The replacement for the M is the M1500. Gary would have to elaborate on how that was achieved. A slower Mojave Green maybe?

Simply put:
L2200 = higher thrust and shorter burn. Full L (badass motor)
M1500 = lower thrust and slightly longer burn. Baby M
 
tjsnakez said:
The original motor for the 5120 case was the M2030. There were some reliability issues with that motor and it was taken out of production. The L2200 is the de-tuned version of that motor. I believe the cores were opened up a bit, so it went from a baby M to a full L. The replacement for the M is the M1500. Gary would have to elaborate on how that was achieved. A slower Mojave Green maybe?

Simply put:
L2200 = higher thrust and shorter burn. Full L (badass motor)
M1500 = lower thrust and slightly longer burn. Baby M
Click to expand...
Yes, slower Green for the M1500G.
 
AeroTech said:
Yes, slower Green for the M1500G.
Click to expand...
I know that I've noticed that there were different burn rate versions of some Aerotech propellants before, but this just got me wondering. Just how many different propellant recipes are there currently in production?
 
Neutron95 said:
I know that I've noticed that there were different burn rate versions of some Aerotech propellants before, but this just got me wondering. Just how many different propellant recipes are there currently in production?
Click to expand...
You can do quite a lot with grain and nozzle geometry.
 
One other quick question/suggestion for @AeroTech. Have you considered making a delay well plug for the 38mm endburning motors, like you did for the J99? I'd like to fly the I49 and I59, but since I currently only use a 38/600 case with the RAS, I can't really justify the price of a new case and closure just for a single reload. It would be really nice if people using the RAS system could also fly the endburning motors.
 
The AeroTech website URL has been redirected to the AeroTech Store site until we can sort out the issues. Unfortunately the hosting company overwrote the index.html page with the “under construction” page, and we are trying to figure out how to re-create it. The rest of the site is still there. We apologize for the inconvenience and hope to restore the website soon.
 
Last edited:
Neutron95 said:
One other quick question/suggestion for @AeroTech. Have you considered making a delay well plug for the 38mm endburning motors, like you did for the J99? I'd like to fly the I49 and I59, but since I currently only use a 38/600 case with the RAS, I can't really justify the price of a new case and closure just for a single reload. It would be really nice if people using the RAS system could also fly the endburning motors.
Click to expand...
We’ll give that some consideration, thanks.
 
It's been a long while since I've done any real web dev, but if it's just the index.html page source you need you can use the wayback machine, https://web.archive.org/web/20210330124213/http://www.aerotech-rocketry.com/
When that loads just right click and view source in chrome and you should get something resembling index.html, the links and image url's will all be messed up due to the archive location vs. the real.
 
What are the specific requirements of the college teams that this motor meets? Not doubting in the least that this will be a good motor for them, just curious why. :)
 
Based my slight involvement with a college team (my son was a member, briefly, and we see them at Bong) I'm thinking a nearly full L with enough thrust to boost the electronics payloads they seem to like - without a level 3 - would be desirable. I think the teams tend to be short of L3s.
 
Charles_McG said:
Based my slight involvement with a college team (my son was a member, briefly, and we see them at Bong) I'm thinking a nearly full L with enough thrust to boost the electronics payloads they seem to like - without a level 3 - would be desirable. I think the teams tend to be short of L3s.
Click to expand...
Aha! That makes perfect sense in light of what I've observed myself. Not having seen it from the teams' perspective, it didn't occur to me.
 

Similar threads

Valkyrie Recovery Systems
Valkyrie will be going to NSL 2024!
Replies
2
Views
246
Valkyrie Recovery Systems
Valkyrie Recovery Systems
overklock
Aerotech G-force Build Thread - WIP
Replies
12
Views
2K
gldknght
gldknght
Dane Ronnow
Build thread: Aerotech HV Arcas
2
Replies
43
Views
5K
Dane Ronnow
Dane Ronnow
Bruiser
RIP IQSY Tomahawk
Replies
3
Views
1K
waltr
W
fyrwrxz
  • Locked
The end of the Never Ending Story
2
Replies
46
Views
4K
OzHybrid
OzHybrid

Latest posts

Back
Top