Here are the ones from Catalina that are exempt. I’m sure there are others.
https://www.catalinacylinders.com/faqs/requalifying-of-aluminum-cylinders/
Sorry for the confusion.
Anthony J. Cesaroni
President/CEO
Cesaroni Technology/Cesaroni Aerospace
http://www.cesaronitech.com/
(941) 360-3100 x1004 Sarasota
(905) 887-2370 x222 Toronto
From: arocket-bounce@xxxxxxxxxxxxx <arocket-bounce@xxxxxxxxxxxxx> On Behalf Of
Galejs, Robert - 1007 - MITLL
Sent: Tuesday, October 5, 2021 7:10 PM
To: arocket@xxxxxxxxxxxxx
Subject: [AR] Re: Hybrid motors and GSE
I just looked up the DOT hydro testing requirements for 3AL cylinders (49 CFR
180.209). The requalification period is 5, 10 or 12 years. Can’t find any
exemption.
Sent from my iPhone
On Oct 5, 2021, at 6:53 PM, Troy Prideaux
<troy@xxxxxxxxxxxxxxxxxxxxx<mailto:troy@xxxxxxxxxxxxxxxxxxxxx>> wrote:
Me neither. Thanks for the tip Anthony.
Troy
From: arocket-bounce@xxxxxxxxxxxxx<mailto:arocket-bounce@xxxxxxxxxxxxx>
[mailto:arocket-bounce@xxxxxxxxxxxxx] On Behalf Of Galejs, Robert - 1007 - MITLL
Sent: Wednesday, 6 October 2021 9:43 AM
To: arocket@xxxxxxxxxxxxx<mailto:arocket@xxxxxxxxxxxxx>
Subject: [AR] Re: Hybrid motors and GSE
Good catch. Mine does indeed have 3AL on it. Didn’t know that was a thing
Thanks!
Sent from my iPhone
On Oct 5, 2021, at 6:23 PM, Anthony Cesaroni
<anthony@xxxxxxxxxxx<mailto:anthony@xxxxxxxxxxx>> wrote:
You mention “small nitrous tank”. If it’s aluminum, inspect the letters on the
dome. If it has a “3-AL” stamp on it, it’s exempt from hydrostatic testing in
the US and Canada if the rules haven’t changed since I checked last.
Anthony J. Cesaroni
President/CEO
Cesaroni Technology/Cesaroni Aerospace
http://www.cesaronitech.com/
(941) 360-3100 x1004 Sarasota
(905) 887-2370 x222 Toronto
From: arocket-bounce@xxxxxxxxxxxxx<mailto:arocket-bounce@xxxxxxxxxxxxx>
<arocket-bounce@xxxxxxxxxxxxx<mailto:arocket-bounce@xxxxxxxxxxxxx>> On Behalf
Of Galejs, Robert - 1007 - MITLL
Sent: Tuesday, October 5, 2021 4:53 PM
To: arocket@xxxxxxxxxxxxx<mailto:arocket@xxxxxxxxxxxxx>
Subject: [AR] Hybrid motors and GSE
Here’s something to do with rockets…
I used to fly a lot of hybrid rockets but haven’t done much for a few years so
I have a bunch of hybrid motors and ground support equipment available for
cheap to declutter my basement. Would anyone here be interested? Here’s what I
have:
Pratt Hobbies ground support equipment for 50 ft remote fill/fire/launch (may
need new rechargeable battery)
Small nitrous tank (partially filled but needs hydro testing for refill)
A variety of nylon tubing and compression fittings
Rattworks H70, I80 and K240 cases (some reloads)
West Coast Hybrid cases and reloads
Experimental hybrid floating piston UC motor based on Ellis Mountain Motorworks
cases with snap-ring closures flown with PVC, rubber and wax fuel
Several other Ellis Mountain cases and solid propellant reloads (not NAR/TRA
certified any more)
If anyone is interested, let me know and I can provide a more complete
inventory/information/pictures. Make me an offer!
I’m located in Massachusetts NW of Boston if anyone is local.
Thanks for looking,
Robert