Grain display.

Private group that only members can see / post in.
JD13x
Posts: 26
Joined: Thu Feb 04, 2016 10:35 pm

Grain display.

Postby JD13x » Wed Mar 02, 2016 12:51 pm

I started a thread a while back on the other forum and it was quite popular.
A thread to show off your grains.

IMG_20160216_221026857.jpg
My grain from last mix.
83% solid using 9% AL

JD13x
Posts: 26
Joined: Thu Feb 04, 2016 10:35 pm

Re: Grain display.

Postby JD13x » Wed Mar 02, 2016 12:56 pm

Post pics of your grains!

JD13x
Posts: 26
Joined: Thu Feb 04, 2016 10:35 pm

Re: Grain display.

Postby JD13x » Thu Mar 03, 2016 12:35 am

One my Moon burners I'm working on.
54 mm x 3G Equivalent

2016-03-02 14.10.11.jpg


2016-03-03 00.7878958.JPG

User avatar
patelldp
Posts: 160
Joined: Thu Nov 05, 2015 5:07 pm
Location: New York

Re: Grain display.

Postby patelldp » Thu Mar 03, 2016 8:23 am

I dug through my computer but couldn't find a pic of my 54/1750 moon grain. I know it's still being shown over at that forum I was banned from, but as such I can't access it. Anyone want to snag the largest res pic they can find and post it here for me?

Here's the thrust curve from the AltAcc2C:

Arcas_AltAcc_9_26_15_1750Moon_Curve.png
Dan Patell
TRA 10904 L3

User avatar
tfish
Posts: 17
Joined: Thu Feb 04, 2016 11:54 am

Re: Grain display.

Postby tfish » Thu Mar 03, 2016 11:33 am

this?
Image

Tony

User avatar
patelldp
Posts: 160
Joined: Thu Nov 05, 2015 5:07 pm
Location: New York

Re: Grain display.

Postby patelldp » Thu Mar 03, 2016 11:49 am

tfish wrote:this?

Tony


That's the one! Thanks!
Dan Patell
TRA 10904 L3

mdutch
Posts: 72
Joined: Mon Nov 09, 2015 4:01 pm

Re: Grain display.

Postby mdutch » Thu Mar 03, 2016 12:43 pm

OK, I'll bite. Here is one I just did, it's also on another post here as well.
IMG_20160219_122311_301.jpg

But fear not, I also have some other grains I've done,
I just won't be able to post photos of them until later this weekend.

Yes, there will be moon burners as well.
Mike Dutch
URRG & MRSI Founder
TAP L3CC
"I just want to fly ROCKETS"

JD13x
Posts: 26
Joined: Thu Feb 04, 2016 10:35 pm

Re: Grain display.

Postby JD13x » Thu Mar 03, 2016 10:39 pm

Same batch as first post without the mandrels:
2016-03-02 14.05.00-2.jpg

JD13x
Posts: 26
Joined: Thu Feb 04, 2016 10:35 pm

Re: Grain display.

Postby JD13x » Thu Mar 03, 2016 10:41 pm

Dan, how well did the liner hold up?
I added some thermal tape to the cored side to help insulate it.

JD13x
Posts: 26
Joined: Thu Feb 04, 2016 10:35 pm

Re: Grain display.

Postby JD13x » Thu Mar 03, 2016 10:47 pm

Here is the entire batch that the moon burner came from.
This will be the second batch of this propellant.
I tweaked it a bit for better results and better density.
The measured density of the grain posted earlier came out to
0.060 That is after subtracting the casting tube mass.

I'll run some more tests on it before I post the formula.

2016-02-02 17.48.05.jpg


Return to “MRSI Private Group”

Who is online

Users browsing this forum: No registered users and 1 guest