- This topic has 27 replies, 11 voices, and was last updated 17 years, 3 months ago by
Adrian.
Adrian.-
Posts
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Anonymous
AT makes two loads for the 29/360 case – the I200 and the H268. In the past, these loads used a very different aft closure vs. the other 29mm loads, as the nozzle these two loads used was HUGE. I saw the Monster Motors only had one closure, so I inquired as to if they made the “special” aft closure for the 29/360 loads.
Tom Rouse (who make Monster Motors) indicated that AT had gone to a single closure now due to the confusion.
I’m curious if anyone has flown an H268 or I200 lately? The nozzles in the ones I have flown are sooooo much greater in diameter, they were not even remotely close to fitting the “standard” closure.
I guess I’m wondering if they changed the nozzle so much to make it fit the closure that these loads have *also* changed? Do they have the same performance now? Very different geometry in play if they all use the narrower closure? I’m confused…
Jeremiah Johnson
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)
Anonymous
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
Art Hoag
Uh oh! 2005 was the last time someone burned an I200 or H268? Wow! We have been slacking!
Art
Bret Packard
I have one of each but I’m afraid of having to clean that long freakin casing… 🙄
Anonymous
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?
new2hpr
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
Kenneth Reilly
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.
Dr. Michael Sutter DC
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
Anonymous
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…
Anonymous
Jeremiah Johnson
Art Hoag
Bret Packard
new2hpr
Kenneth Reilly
Dr. Michael Sutter DC
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