Longer tanks, source of bad trim

jluttichau · January 10th, 2006, 08:54 PM

Hi,

When i did my tech 1 my instructor had to use some of our tanks which were a set of long 2x12. He commented that he thought they were a little too long and he couldn't get that perfect arch, so he was a little head up.

What are your thoughts on that, could the longer tanks cause bad trim or is it just a case of getting used to.

Cheers
Jonas

Phil O · January 10th, 2006, 10:02 PM

Up until recently I've been using twin Faber 12's and found that early in the dive I was being pushed head down, particularly when descending.

I've just rigged up a set of ECS 12 litres which are longer and comfier although they are a couple of Kg lighter than Fabers. I haven't found any problems with trim so far ... but then I've never been very proud of my trim.

I think it's as you say - it's a case of getting used to the set up.

jluttichau · January 10th, 2006, 10:44 PM

Quote: (Originally Posted by Phil O)

I think it's as you say - it's a case of getting used to the set up.

Yes maybe. He was complaining about his trim looking something like what you have in your avatar picture.

Cheers
Jonas

Divingniknaks · January 10th, 2006, 10:52 PM

Those are Ali 80's though I think, in the Caymans :D

Phil, right or wrong ?

Phil O · January 11th, 2006, 12:30 AM

Quote: (Originally Posted by Divingniknaks)

Those are Ali 80's though I think, in the Caymans :D

Phil, right or wrong ?

You're right.

Phil O · January 11th, 2006, 12:33 AM

Quote: (Originally Posted by jluttichau)

Yes maybe. He was complaining about his trim looking something like what you have in your avatar picture.

Cheers
Jonas

Ah .... I blame my large stomach. Does your instructor suffer from the same?

jluttichau · January 11th, 2006, 01:13 AM

Quote: (Originally Posted by Phil O)

Ah .... I blame my large stomach. Does your instructor suffer from the same?

Didn't notice.. but he is american.. :D

Cheers
Jonas

fraser · January 11th, 2006, 01:24 AM

This is AG presumably Jonas? I think he has a far more pronounced arch in his trim than most of us, so would be affected by the longer cylinders. When I tried a longer set recently I found that they had more of a tendency to sit on my butt cheeks than a set of Fabers, but it wasn't really a problem.

Biggest problem was trying to sit down (out of the water) in them!

Fraser.

Phil O · January 11th, 2006, 01:36 AM

Quote: (Originally Posted by jluttichau)

Didn't notice.. but he is american.. :D

:D :D :D

Phil O · January 11th, 2006, 01:38 AM

Quote: (Originally Posted by fraser)

Biggest problem was trying to sit down (out of the water) in them!

You're right .. I found the Fabers easier to doff/don on my car trunk.

January 10th, 2006, 08:54 PM	#1 (permalink)
jluttichau(Offline) Custom User Title Join Date: Nov 2005 Location: Denmark Posts: 437	Longer tanks, source of bad trim Hi, When i did my tech 1 my instructor had to use some of our tanks which were a set of long 2x12. He commented that he thought they were a little too long and he couldn't get that perfect arch, so he was a little head up. What are your thoughts on that, could the longer tanks cause bad trim or is it just a case of getting used to. Cheers Jonas

January 10th, 2006, 10:02 PM	#2 (permalink)
Phil O(Offline) New Member Join Date: Nov 2005 Location: Milton Keynes Posts: 340	Up until recently I've been using twin Faber 12's and found that early in the dive I was being pushed head down, particularly when descending. I've just rigged up a set of ECS 12 litres which are longer and comfier although they are a couple of Kg lighter than Fabers. I haven't found any problems with trim so far ... but then I've never been very proud of my trim. I think it's as you say - it's a case of getting used to the set up. __________________ Phil

January 10th, 2006, 10:52 PM	#4 (permalink)
Divingniknaks(Offline) Resident purveyor of shiney kit.... Join Date: Nov 2005 Location: Midlands UK Posts: 1,038	Those are Ali 80's though I think, in the Caymans :D Phil, right or wrong ? __________________ Phill ----------------------------- Salvo Lights, DirZone Gear , Frog Wings Dive ? http://www.divingniknaks.com

January 11th, 2006, 12:30 AM	#5 (permalink)
Phil O(Offline) New Member Join Date: Nov 2005 Location: Milton Keynes Posts: 340	Quote: (Originally Posted by Divingniknaks) Those are Ali 80's though I think, in the Caymans :D Phil, right or wrong ? You're right. __________________ Phil

January 11th, 2006, 12:33 AM	#6 (permalink)
Phil O(Offline) New Member Join Date: Nov 2005 Location: Milton Keynes Posts: 340	Quote: (Originally Posted by jluttichau) Yes maybe. He was complaining about his trim looking something like what you have in your avatar picture. Cheers Jonas Ah .... I blame my large stomach. Does your instructor suffer from the same? __________________ Phil

January 10th, 2006, 10:44 PM	#3 (permalink)
jluttichau(Offline) Custom User Title Join Date: Nov 2005 Location: Denmark Posts: 437	Quote: (Originally Posted by Phil O) I think it's as you say - it's a case of getting used to the set up. Yes maybe. He was complaining about his trim looking something like what you have in your avatar picture. Cheers Jonas

January 11th, 2006, 01:13 AM	#7 (permalink)
jluttichau(Offline) Custom User Title Join Date: Nov 2005 Location: Denmark Posts: 437	Quote: (Originally Posted by Phil O) Ah .... I blame my large stomach. Does your instructor suffer from the same? Didn't notice.. but he is american.. :D Cheers Jonas

January 11th, 2006, 01:24 AM	#8 (permalink)
fraser(Offline) "I'm only late on your timescale" Join Date: Nov 2005 Location: Kent, UK Posts: 463	This is AG presumably Jonas? I think he has a far more pronounced arch in his trim than most of us, so would be affected by the longer cylinders. When I tried a longer set recently I found that they had more of a tendency to sit on my butt cheeks than a set of Fabers, but it wasn't really a problem. Biggest problem was trying to sit down (out of the water) in them! Fraser. __________________ Damn it feels good to be a gangsta

January 11th, 2006, 01:36 AM	#9 (permalink)
Phil O(Offline) New Member Join Date: Nov 2005 Location: Milton Keynes Posts: 340	Quote: (Originally Posted by jluttichau) Didn't notice.. but he is american.. :D :D :D :D __________________ Phil

January 11th, 2006, 01:38 AM	#10 (permalink)
Phil O(Offline) New Member Join Date: Nov 2005 Location: Milton Keynes Posts: 340	Quote: (Originally Posted by fraser) Biggest problem was trying to sit down (out of the water) in them! You're right .. I found the Fabers easier to doff/don on my car trunk. __________________ Phil