Re: [PSUBS-MAILIST] Boat operabilty without VBT

[MerlinSub@t-online.de]

"Cliff Redus" <cliffordredus@sbcglobal.net> schrieb:
> Carsten,
  
Hi Cliff

> I while back you mentioned that Sgt. Pepper was just to small to have a VBT.  Can you give us some of your operation experience with Sgt. Pepper just using the MBT for buoyancy control? 

 Specifically:

> When you are ascending or descending, how frequent do you have to adjust buoyancy back to neutral?

It dosen't work very well so we install a VBT. 

> What is the ROB of the boat?

ROB ?

> Does the fact that at depth the MBT is not completely filled with water cause any longitudinal stability problems:

It is allways filled

> What is your MBT air capacity and how long does it typically last?

90 Liters

> Do you blow the MBT off the HP port of your first stage scuba regulator or do you use the LP side?

LP

> With the recent retrofit of the boat to from 300 to 600 what where the major changes?

Stronger Hatch bars, stronger dome and a FE-calculation. 
 
> Even though this boat has been around awhile, it is still a beautiful design.

Thank you, but it is dammed small.. and the payload is also very small. 

And you can not run it with friends together. A double seater is more fun with friends. 
But with Peppers alone in 150 feet is also a very special expierence.. :-) 

And you can dive with it in sunken buildings - inside.. :-) 
Emile did that allready.

> Regards
>  
> Cliff

Maybe we modified Peppers again - with a new high performance Lipo battery for more power, 
and to get more payload. I think she is still the smallest manned submarine in the world. 

regards Carsten



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