Regardless of whether you are diving at 30 feet on a coral reef, 130 feet in a wreck or at 300 feet in a cave, the key elements to diving are the same. Having an enjoyable dive remains the goal while good buoyancy, proper trim, suitable weighting, efficient propulsion and integrated life support are the fundamental skills that support safe and enjoyable diving. Halcyon's Multifunction Compensator, the heart of this unique diving system, is specifically designed to give divers a distinct advantage in these critical areas.

Buoyancy:
The Halcyon MC System adjusts to every type of diving with the selection of the proper buoyancy and weighting system. Buoyancy compensation is available in both Eclipse and Pioneer systems specifically designed to maximize single tank efficiency while the Evolve and Explorer wings offer a range of lift choices and trim characteristics for double tank streamlining

Weighting:
The MC System incorporates the use of detachable and non-detachable weight, adjusted specifically for each diver. The stainless backplate provides six pounds of non-detachable weight evenly disbursed across the diver's back. Alternatively, divers may choose the aluminum backplate when additional weight is not necessary.

The Halcyon ACB Weighting System now comes in sizes ranging from 12 pounds (six per side) to 30 pounds of detachable weight while V-Weights and Keel Weights are available for additional weight customization.

Trim:
The Halcyon MC System controls trim through the combination of weight distribution and stability offered by the 5-point Secure Harness. Removing weight from the waist not only prevents a sore lower back, but also shifts the center of gravity up to the central torso and facilitates a streamlined horizontal profile in the water. Proper trim is essential to reducing swimming effort and gas consumption, making dives easier and more enjoyable.

Propulsion:
The Halcyon MC System is designed to significantly reduce the effort required to move through the water not only by establishing proper trim, but also by reducing drag on the diver.

Merely doubling the surface area of one's BC results in a resistance that is four times as great and requires nearly sixteen times more energy to move through the water. The Halcyon MC System reduces drag by minimizing the diver's frontal area, resulting in greater efficiency and ease of diving.

Life Support:

The MC System provides divers with an integrated life support solution that accommodates a variety of emergency and utility lift devices. Signaling, lifting, and surface flotation can be stored "transparently" within the MC System Storage Pak.

The Halcyon Secure Harness allows for infinite adjustability, providing a perfect fit for all divers and diving systems. Men or women diving wet or dry will find the Secure Harness is without question the most stable and well-fitted design in the industry.

• Five point system insures snug fit and eliminates tank roll and drift
• MC Storage Pak provides "transparent" storage for alternate lift and signaling devices
• Bent D-rings facilitate one-handed storage of accessories like Scout lights or stage bottles
• Complete adjustability of D-rings eliminates inappropriate attachment points