I'm curious if anyone has flown an H268 or I200 lately?

I checked the launch logs directly and it looks like nobody has flown either of those at a club launch for a few years.

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| event                                    | date       | flyer                   | rocket            | motor |
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| PHITS Atlas Launch                       | 2002-01-05 | Carl Battles            | Arreaux           | I200W |
| PHITS Atlas Launch                       | 2002-02-02 | Bob Messner             | HPX Arrow         | H268R |
| PHITS Atlas Launch                       | 2002-03-16 | Art Hoag & Eric Parsons | Endurance         | I200W |
| UROC - Hellfire 8                        | 2002-08-16 | Joe Hinton              | High Tech 45      | I200W |
| UROC - Hellfire 8                        | 2002-08-16 | Jon Skuba               | XM-47 Little John | I200W |
| NCR Club Launch                          | 2002-10-05 | Scott Harless           | No Name           | I200W |
| NCR Club Launch                          | 2003-02-08 | Jon Skuba               | Checkmate II      | H268R |
| NCR Club Launch (Day 2 of 3)             | 2003-04-12 | Jon Skuba               | Checkmate II      | I200W |
| NCR Club Launch                          | 2003-12-06 | Bob Messner             | Lance Beta        | H268R |
| NCR Club Launch                          | 2004-05-08 | Jon Skuba               | Checkmate II      | H268R |
| NCR Club Launch                          | 2004-05-08 | Bob Messner             | V2                | I200W |
| NCR Club Launch                          | 2004-08-14 | Bill Tigar              | G-Force           | I200W |
| NCR Club Launch - Oktoberfest            | 2004-10-08 | Jon Skuba               | Checkmate II      | H268R |
| NCR Club Launch - Oktoberfest            | 2004-10-09 | Bill Tigar              | G-Force           | I200W |
| NCR Club Launch - Oktoberfest            | 2004-10-10 | John Simonsen           | Black Rocket      | I200W |
| NCR Club Launch                          | 2005-03-05 | Bill Heath              | Nike Ajax         | I200W |
| NCR Club Launch                          | 2005-03-05 | Jon Skuba               | Checkmate II      | H268R |
| NCR Club Launch - Mile High Mayhem Day 2 | 2005-04-16 | Bob Messner             | Wolverine         | I200W |
| NCR CLUB LAUNCH -Art's Birthday          | 2005-09-19 | Scott Harless           | Grey and Black    | I200W |
| NCR CLUB LAUNCH - Oktoberfest '05 Day 2  | 2005-10-01 | John Wilke              | Scuttlebutt       | H268R |
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20 rows in set (0.26 sec)

Thanks - I'll get w/ Tim T. and see if he has any? There is a chance that what he has in stock is sized to the older nozzle?

JW

Uh oh! 2005 was the last time someone burned an I200 or H268? Wow! We have been slacking!

Art

I have one of each but I'm afraid of having to clean that long freakin casing... 🙄

I'll buy the H268 from you if that casing cleaning thing continues to overwhelm 🙂 Just curious, can you tell by looking which closure they need?

I have one of each but I'm afraid of having to clean that long freakin casing... 🙄

Bottle brush, followed by bottle brush with wet wipe over the end. Piece of cake! Now fly the silly things!

Ken

Hi John,

John Reilly flew his Callisto on an I200 in the 29/360 case last November. I only ever had one set of 29mm closures, and I don't recall there being an issue with the nozzle fitting in the closure. We watched the rocket drift behind the horizon just to the south of the windmill and haven't seen it since.

I think I have the H268R reload, and no casing....
I have blown 3 29mm casings out all on redlines.... its kinda annoying when you make the motor correctly and then it blows out the side of the motor right near the aft closure 3 times and with 3 different case builders (1was aerotech, 2was dr. rocket, 3 was rouse)....
I would use the I motor if you have the chance, tim had 1 of them in the box from what i saw.

29min dia project would be perfect for the I200

I have blown 3 29mm casings out all on redlines.... its kinda annoying when you make the motor correctly and then it blows out the side of the motor right near the aft closure 3 times and with 3 different case builders (1was aerotech, 2was dr. rocket, 3 was rouse)....

Yikes, something is up there. I've never heard of a motor doing that? When you say "blows out the side of the motor" are you saying the motor case actually ruptured? or that gas escaped between the closure and the casing?

Has anyone else ever seen or heard of this happening? There was some "blowby" many years ago - that was always associated with gas escaping through the unplugged *forward* closure. I am not at all familiar with what you are describing...

8) I have seen 6 or 8 H165 smoke the case in the last 18 months. I do not fly that motor anymore. Aero poop pooped me when I asked about the H165, they said it was user error. (my ass, and there was no problem with the old G80's either) I flew the H268 a few weeks back over at UROC, everything was fine except for the whiplash I got watching my Javalin go.. 😛 Neither motor is a big seller, so I only bring one or two to a launch, but I have a good stock of both. BTW, I am flying both at LDRS in my Shadow MD with a Parriot high G... If I get it back... 😯

Yikes, something is up there. I've never heard of a motor doing that? When you say "blows out the side of the motor" are you saying the motor case actually ruptured? or that gas escaped between the closure and the casing?

yeah it was right above the aft o ring and the nozzle. the case actually ruptured! like it decided the nozzle wasn't good enough and it needed to exit out of the side. I actually have 3 cases that are breached and 1 that is bulged.

and Tim isn't lying when he has seen 6-8 cases do that, if not even more then that I think there are 2 29/180 cases breached, 1 29/120 breached and another 29/180 that is bulged....

the funny part is that the closures are usually undamaged. the Fwd closure is always fine and dandy and the rear is too. but the case will make a new nozzle in the side of it about the size of the nozzle itself.

But now I love the power of redline motors but I always tell dad that we are not using them cause Im tired of having 200 dollars in cases and nice rockets getting completely destroyed by this happening.

Some guys MHM were wanting to get there L1's and were buying motors. Tim and I told him to not get a redline (he wanted to really bad!) we advised a White lighting instead and the guy was like thanks for the recommendation.

Dad Failed L1 in stars in stripes to breached redline and spun in the air about 100ft above the pad then caught the prairie on fire, I failed my L1 with a breached redline it singed through my tethys kwik switch 29mm motor retainer. my night rocket breached on a redline spun in the air then lawndarted destroying my neat acrylic exterior.
all in all Redline's are no go for launch!

Also Do you really think that I dont know how to build a motor? thats just stupid nonsense! ive built over 50 motors and its only the redlines that blow up seriously?

ill stick with everything but redline (im happy with CTI these days!)

Yikes, something is up there. I've never heard of a motor doing that? When you say "blows out the side of the motor" are you saying the motor case actually ruptured? or that gas escaped between the closure and the casing?

Also Do you really think that I dont know how to build a motor? thats just stupid nonsense! ive built over 50 motors and its only the redlines that blow up seriously?

I think if you re-read my post above you will see that I was not casting aspersions on your motor assembly -- I was genuinely asking what had happened. I'm getting ready to fly another redline in an altitude attempt. As noted, I have never seen this and I wanted to learn more details.

For the record, the "blowby" issue I pointed to above was a manufacturer's defect -- It was NOT the fault of the flyers who assembled bad parts. I was attempting to discern if this was a similar situation.

I'm a bit taken aback that an honest inquiry is interpreted as "stupid nonsense".

Heh - the "stupid nonsense" sentence made me laugh. I read that as an extension on Tim's "my ass" comment - as in, the manufacturers are saying that the rupture is assembly error and that is just stupid non-sense.

I wonder what factors make the failures more or less likely to happen, and if there is anything we can do to reduce the chance of it happening.

Some general questions:
Does the liner burn through before the case fails, rather than after? Did the case get hot enough at that end for the aluminum to soften? If so, would mounting in a minimum-diameter rocket help by providing a better thermal conductive path to the wind going by?

For the failures you saw, what kind of rockets were they in, and how were the motors mounted?

And by the way, I also interpreted the "you" in "Do you really think that I dont know how..." as directed at Aerotech, rather than John.