This item is rated "8" on the Add Helium pre-owned items scale
An inherent problem for rebreather divers has always been the difficulty
in achieving proper trim in the water. As experienced divers will tell
you, proper trim is more than just your ability to orient yourself
horizontally - it's the ability to stay there, perfectly balanced, while
not finning or moving. Having to constantly fin to maintain proper trim
is subliminally task loading. When faced with deploying a reel, or
managing an emergency, the task suddenly becomes that much more complex
when you find yourself needing to fin for proper trim.
rebreather have this trim issue because of the 'inverted tanks,'
inherent in the design. Most, if not all rebreathers have their O2 and
diluent bottles mounted where the valve is on the bottom, moving more
weight to the bottom of the diver, and affecting their center of
balance. It is also affected by the counterlungs themselves. For proper
hydrostatic loading and low work of breathing, the gas in the
counterungs is ideally located at the same level in the water column as
the lungs. Fo rate horizontal diver, this is generally above the
shudders, adding to the imbalance of the diver.
the solution? This problem can be somewhat mitigated by the use of a
drysuit. Adding gas to the legs helps keep the diver nice and level. But
what about when wetsuit diving? Enter the Halcyon CCR 35 wing.
Designed by expedition diver Mike Barnette, the CCR 35 wing was
engineered to put the lift where the rebreather diver needed it - down
low. The earliest versions of the CCR-35 were designed for the
Megalodon and the KISS rebreathers; however, subsequent field use has
demonstrated this wing is ideal for most closed-circuit rebreathers
utilizing inverted cylinders.
All Used Equipment is tested by the Add Helium Technical Services
department, and is sold in working order.
When applicable, test results will be in the product listing.
The following scale is for cosmetic condition only.
new/Never used - In original manufacturer's packaging
DISPLAY Never owned - Used
for demonstration purposes only
10 Pre-owned equipment but
appears as new, may or may not have been dived.
See description for details
9 Shows little or no signs
8 Shows signs of use, but
7 Shows moderate wear or
6 Well used – may have
slight damage which does not affect function, and/or cosmetic marks
5 Shows considerable amount
of use - More than average wear
Please review our high definition photographs of pre-owned items to
see condition. We make a point to
photograph anything we believe you would be interested in seeing.