Flyng Dragon PCP Air Tube Failure

[7624452]

I defer to your position. Have a good day.

[PakProtector]

I found the tube. Will have pix and some measurements by the end of the day.
cheers,
Douglas

[Taso1000]

Douglas,

Where did you find it?

Taso

[OleTomCat]

I found the tube. Will have pix and some measurements by the end of the day.
cheers,
Douglas

Yeah, now we can see what happened.....

[Gerard]

Oh, I get it, you found THAT tube! Cool. Was it sticking out from between the ribs of a human skeleton perchance? Or a deer skeleton? Jammed into a tree?

[Motorhead]

Thats been quite a spell of time ... Rain and inclement weather during its absents surely to muddle evidence we're all looking to find out.

Do tell Douglas 

[WHITEFANG]

I 2nd that!!💀

[Ribbonstone]

Post as you can...multi pcitures even if rust covered...some of us have managed to (intentionally or not) destroyed stuff in experiments enough times to figure out what likely went wrong.

[Taso1000]

Douglas,

I was curious if it was where you thought or did it hit something and bounce off or did the mower find it?

If I remember correctly you thought is could have been in a pond or something?

But more importantly the analysis of the reason for separation? 

Thanks,

Taso

[Nomadic Pirate]

Curious to know where the tube was an in what kind of conditions it is after all this time.

[ezman604]

Will be good to see the photos and measurements. But here are a few reminders as we dredge this topic back up again.
1) It will be impossible to piece this incident together not having all of the facts about everything leading up to and after the event. On many points it will simply come down to one person's word against another's. And we will NOT play that game.
2) This entire incident created enough turmoil that it caused us to lose a long time respected vendor. I regret this in a way but also will not tolerate the lack of support from any vendor. The incident proved an eye opener in that regard. It set a precedence for handling issues with GTA approved vendors. 
3) This forum and me personally took a lot of flak and mud slinging with accusations of a cover up. There could be nothing farther from the truth. This thread is a proof of that. I am not willing to go through another round of that MESS!!!! And it will serve no useful purpose but to possibly do more damage. Which was probably a motive of some in the first place.
4) We had asked that folks exercise extreme caution in the use of these airguns. We tried to create a safety checklist for the regular user to follow that might determine if your airgun is safe. We were never able to come up with a checklist we were comfortable publishing, for fear of putting some kind of liability in our laps. We (GTA and it's volunteer staff) have NO liability associated with the sale or use of these airguns!!!
So since this has come up again, I will make this statement. You use these airgnus at your own risk. We have given more than ample warnings of a possible unsafe condition. If you even THINK your airgun could have an improper fit airtube, REMOVE IT FROM USE IMMEDIATELY!!! Return it to Mike to see if he will do anything for you or simply destroy it and move on.
There will be NO MORE slander or slamming of anyone on GTA or this forum itself over this issue.
And you can take that to the bank!!!!

Douglas, please do post photos and thank you for the update. Folks, read and heed my words. There will be no more mud slinging over this on GTA Forums!!!
Show the photos so we can close this issue once and for all and move on. And be thankful no one has EVER been injured from the use of one of these.

[PakProtector]

Pix next. Measurement of the major diameter: .8444 on mics. Fowler vernier, that are officially out of calibration by time, but have effectively been out of service and used very little since regular calibration.

From the Announcement Gate post on the threads:
External Threads (Class 6g):
Major Diam:
Max. 21.974 mm 0.8651"
Min. 21.794 mm 0.8580"

These are nearly .014" too small; the major diameter was turned too small.
cheers,
Douglas

[PakProtector]

Pics are too big, and I don't want to shrink them.
Douglas

[PakProtector]

Douglas,

I was curious if it was where you thought or did it hit something and bounce off or did the mower find it?

If I remember correctly you thought is could have been in a pond or something?

But more importantly the analysis of the reason for separation? 

Thanks,

Taso

It wound up in the long grass by my parts Jetta. It did not make it far enough to land in the pond. I found it whilst cleaning up tools after taking a line trimmer to it so I could get some bits off it.

Douglas

[BigTinBoat]

Pics are too big, and I don't want to shrink them.
Douglas

Huh? Change image size to 600x800, save as "x" and it's done, 5 seconds tops

[William]

Pics are too big, and I don't want to shrink them.
Douglas

Most people would just make a copy of the original and put them in safe keeping and use the copies to resize or what ever they wished, the copy will be exact duplicate of the original.

Ok here goes,,, put original in a folder named original () then make new Folder and name it copy of (xxx). Then right click on original pics and select copy, then open the Copy OF folder and right click in the open space and select Paste.... then resize as needed and you will still always have the Oringinals,,,, see that wasn't hard at all,,,, now show us the pics!!!!!!!

William

[rsterne]

Here are the pics that Douglas emailed me.... If you click on them, they should enlarge....





The tops of the threads appear truncated, which could, IMO, mean two things.... 1. they were not cut deep enough, or 2. the OD of the tube was too small, prior to threading.... Since the measured OD of the threads is 0.8444", and since you can see in the photos that the top of the threads is a long ways below the surface of the tube, I would say that the latter was the case....

Bob

[Kallysan]

Well they say "A picture is worth a thousand words", these pictures tell me everything I need to know to figure out the root cause of the failure.

[ezman604]

Thanks Bob for assisting in getting the photos up. Photobucket.com loading requires no resizing.

[stalwart]

Thank you, Douglas.