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UTD Delta System - Side-Mount/Back-Mount Diving

In designing the new Delta Trim Device, we set out to create one hybrid trim device that can do it all. Delta works as both a back and side mounted rig, taking only minutes to transition between the two. Back or side mounted, in warm or cold water, paired with a hard, soft or travel backplate, Delta is truly the only single tank or side mount trim device you will ever need. To accomplish this we drew on everything we had learned designing the groundbreaking Z and Z+ side mount systems as well as the Alpha and Alpha Doubles trim devices. What emerged was a versatile trim device that will accommodate almost any type of diving you do.

The key to it all was a very low profile, streamlined trim device that contours to the body. The Delta, with 37lbs of lift, has a much lower profile than traditional wings. This streamlining produced a trim device that simply will not “taco” or wrap up and around the side of a tank, producing drag. Neither will the Delta Trim Device allow gas to roll around the bladder (referred to as “air shifting”) which produces instability in the divers trim.

In designing the Z and Z+ systems we learned quite a bit about how the positioning of lift effects a divers trim. In previous wing designs, the emphasis was on placing the majority of the lift near the shoulders to achieve proper horizontal trim. The Delta Trim Device puts the majority of the lift lower on the body, exactly where the diver needs it. This naturally places the diver in a flat, feet up position.

Delta was born hybrid. The overpressure valve and LP hose can be reversed to accommodate back and side mounted rigs. In a traditional wing, a diver would often have to transition from proper trim to a feet down or vertical position in order to dump gas out of the wing. In either configuration, the diver can dump gas from both right and left in any trim position.

Introducing the Delta Trim Device. One trim device. Endless applications.

Benefits of Delta Trim Device - Side Mount or Back Mount

  • Super Low Profile and Streamlined.
  • Always stays snug to your body. No wing or air cell flapping around behind you.
  • Inflate and Deflate designed to function both in the horizontal prone position and the vertical position
  • Dumps from the right and left side
  • Designed to have lift positioned to ensure a good, flat horizontal prone position while diving.
  • System design so all components are consistent, integrated and scalable.
  • One size Trim Device works for Back Mount or Side-Mount Diving
  • Easy to reverse LP hose and OPV to protect during "Hard Core" side-mount activity.
  • One size works for all environments. No need for multiple wings.
  • Fits regular backplate, travel harness and soft harness

Delta Hybrid System Recreational Single Tank Side-Mount

Everything you need to go recreational single tank side-mount diving with the Delta Hybrid System. This system is designed for recreational divers who want to tank a single take side mount diving and includes your Z-Harness, Delta Hybrid Trim Device, Z-Manifold, Z-Stage Bottle Kit and all the hoses and fittings you need. All you have to decided is if you want the permanent stage bottle kit or travel stage bottle kit

Features and Benefits

  • Designed for Recreational Side-Mount Diving
  • Complete Z-Harness with SS plates, webbing, d-rings and tank bungee
    • Can accommodate 1 or 2 tanks on either side of diver
  • Delta Hybrid Trim Device
    • Upto 38lbs/17kgs of lift
    • Built in Weight pockets
  • Z-Manifold (8 ports) for attaching up to 6 outputs and 2 inputs
  • Z-Manifold Hose Kit
    • Female Q6 Input Hose 
    • 5'/1.52m Long Hose
    • 24"/65cm Necklace Hose
    • 22"/56cm BCD Hose
  • Z-Stage Bottle Harness (Permanent or Travel ..your choice)
  • Z-Stage Bottle Hose Kit
    • Male QC6 Stage Hose
    • Over Pressure Relief Valve (OPV)
    • High Pressure Hose for stage bottle SPG

Delta Hybrid System for Cave / Wreck / Technical Double Tank

 

Everything you need to go Cave/Wreck/Tech double tank Side-Mount Diving. This system is designed for cave or wreck or technical divers who want to take double tanks side mount diving and includes your Z-Harness, Delta Hybrid Trim Device, Z-Manifold,  2 x Z-Stage Bottle Kit and all the hoses and fittings you need. All you have to decided is if you want the permanent stage bottle kit or travel stage bottle kit

Features and Benefits

  • Designed for Cave/Wreck/Tech Z-Diving
  • Complete Z-Harness with SS plates, webbing, d-rings and tank bungee
    • Can accommodate 1 or 2 tanks on either side of diver
  • Delta Hybrid Trim Device
    • 38lbs/17kgs of lift
  • Z-Manifold (8 ports) for attaching up to 6 outputs and 2 inputs
  • Z-Manifold Hose Kit
    • 2 x Female Q6 Input Hose 
    • 7'/2.0m Long Hose
    • 24"/65cm Necklace Hose
    • 22"/56cm BCD Hose
  • 2 x Z-Stage Bottle Harness (Permanent or Travel ..your choice)
  • 2 x Z-Stage Bottle Hose Kit
    • Male QC6 Stage Hose
    • Over Pressure Relief Valve (OPV)
    • High Pressure Hose for stage bottle SPG

UTD Signature Series Delta Back-Mount BCD system for Single Tank diving

This system is design for recreational divers who want to predominately back-mount their cylinders (steel or aluminum) on a standard backplate for either warm or cold water diving, although they can quickly convert to side moiunt cylinders now or in the future, if desired. The system is composed of a Delta Hybrid (side-mount or back-mount) trim device that has upto 38 lbs / 17kg of lift, a stainless-steel (SS) backplate which is 6lbs /2.7kg negative,  a Stainless Steel Single Tank adapter with two SS cam tank straps. Just fasten a single tank on your back, add a regulator and you off diving back-mount. Keep in mind this system can be used for side-mount diving anytime now or in the future.

Features and Benefits

  • Complete system just attach to a single tank on your back and go
  • Includes a Delta Hybrid Trim Device/wing
  • Designed for horizontal diving position
  • Easy dump air from rear dump
  • Power inflator that is reliable and robust never had a recall
  • SS Single Tank Adapter
  • Comes with two SS Cam Buckle Tank Straps
  • Heavy duty cover on wing to protect bladder
  • Stainless steel backplate to add needed weight
  • 5 year warranty on wing

38lbs / 17 Kg Delta Hybrid Wing

  • Delta hybrid style wing for single tank back-mount diving or for single or double tank side-mount diving (same as Z-Plus trim device).
  • One wing works for warm water and cold water diving. No need for a 20lbs/9kg wing or a 30lbs/14kg wig or a 40lbs/23kg. 
  • Super Low Profile and Streamline.
  • Always stays snug to your body. No wing flapping around or "Taco"ing - Signifcantly Reduces Dynamic Instability. 
  • Dumps from left and right side
  • Correct position of the lift cell to keep you in the horizontal prone position - Hence Trim Device. 
  • Inflator/Deflator LP hose works while horizontal diving. 
  • 38lbs / 17 kg Lift
  • SS Single Tank Adapter

6lbs / 2.7 kg Stainless Steel Backplate

  • Stainless-steel backplate 1.18"/3 mm Thick - So 6lbs /2.7kg Negative
  • UTD/DIR/Hogarthian style single piece webbing harness
  • Stainless-steel D-rings and triglide stoppers
  • Stainless-steel waist buckle
  • Adjustable crotch strap
  • Stainless stell Knife and Knife pocket

Z-Harness - A Std. Side-mount Harness - Complete - Download Owners Manual

A side mount diving harness only consisting of a two stainless steel plates, one piece webbing, Shoulder D-Rings, hip d-rings left/right and front and back, plus the crotch strap font and back d-rings and a knife and sheath.  

Features and Benefits

  • Designed for Side-mount Diving and Z-Diving
  • Comes complete with SS plates, webbing, knife and sheath, d-rings and tank bungee
  • Can accommodates 1 or 2 tanks Side Mounted on either side

Stainless Steel Plate

  • UTD/DIR/Hogarthian style side-mount harness with one piece 2" nylon webbing
  • Stainless-steel D-rings and tri-glide stoppers for right and left shoulders, hips, front waist and butt area
  • Knife and sheath
  • Stainless-steel waist buckle
  • Adjustable crotch strap
  • 40" of 3/8" Bungee for tank plus two Bungee ends

 

UTD Stainless Steel (SS) Complete Backplate - 6 lbs / 2.7kg

Features and Benefits

Stainless steel backplate with one piece harness configured in hogarthian style. Includes needed shoulder, hip and crotch D-rings. Weighted backplates add needed weight.

6lbs / 2.7 kg Stainless Steel Backplate

  • Stainless-steel backplate 1.18"/3 mm Thick - So 6lbs /2.7kg Negative
  • UTD/DIR/Hogarthian style single piece webbing harness
  • Stainless-steel D-rings and triglide stoppers
  • Stainless-steel waist buckle
  • Adjustable crotch strap
  • Stainless stell Knife and Knife pocket

UTD Stainless Steel (SS) Complete Backplate - 12 lbs / 5.4 kg

Features and Benefits

Extra thick Stainless steel backplate to add needed weight. The backplate comes with one piece harness configured in hogarthian style. Includes needed shoulder, hip and crotch D-rings.

12 lbs / 5.4 kg Stainless Steel Backplate

  • Stainless-steel backplate 2.36"/6 mm Thick - So 12lbs /5.4 kg Negative
  • UTD/DIR/Hogarthian style single piece webbing harness
  • Stainless-steel D-rings and triglide stoppers
  • Stainless-steel waist buckle
  • Adjustable crotch strap
  • Stainless stell Knife and Knife pocket

UTD Aluminum Complete Backplate

Features and Benefits

Aluminum backplate add no weight great for thin wertsuits or overweighted divers with heavy doubles. Backplate with one piece harness configured in hogarthian style. Includes needed shoulder, hip and crotch D-rings.

Aluminum Backplate

  • UTD/DIR/Hogarthian style single piece webbing harness
  • Stainless-steel D-rings and triglide stoppers
  • Stainless-steel waist buckle
  • Adjustable crotch strap
  • Stainless stell Knife and Knife pocket

The Delta Hybrid Trim Device for Back-Mount - Download Owners Manual

 

Designing the new Delta Trim Devices we ported over all the technology and knowledge we learned when designing the Z-System Side Mount System. We first had to ensure that we created a very low profile and streamlined "buoyancy wing" that would contour to your body - much like the Z-Trim side mount trim devices do. This would reduce drag and reduce the amount of air "shift" from side to side in the wing or trim device, which ultimately causes instability.

Secondly, we wanted to create the majority of lift where the diver actually needs it to keep their feet up and their body in that flat, horizontal trim we call the prone position. This was paramount when we designed the Z-Trim Devices. Thirdly, we wanted to have an aircell big enough to create enough lift for cold water divers and yet be streamlined enough for warm water divers. In other words, you only need to purchase one size wing for all your single tank diving.

The Delta Single Tank Trim device has 0lbs/0kgs up to 38lbs/17kgs of lift. Keep in mind when the Delta Trim Device is empty it will NOT "Flap" around or taco around the tank. It remains snug and streamlined around your body, reducing drag and creating easy movement through the water.

Fourth, we wanted to ensure that the inflate and deflate ability of the device functioned excellently while in the horizontal position. We spend the majority of our diving time underwater in the flat and horizontal prone position so the deflate mechanism should be positioned to accommodate that and not force the diver to go feet down or vertical to deflate using the LP hose. We decided not to mount the LP inflate and deflate in the traditional manner, which is designed for diver to be in the vertical position. What we learned from designing the Z-Trim Device for side mount diving is that the buoyancy device must dump gas in all positions including vertical and horizontal. The Delta Trim Devices are designed so divers does not have to drop their feet in order to dump gas from the LP hose. 

 

 

Benefits of Delta Trim Device - Back Mount Single Tank 

  • Super Low Profile and Streamlined.
  • Always stays snug to your body. No wing or air cell flapping around behind you.
  • Inflate and Deflate designed to function both in the horizontal prone position and the vertical position
  • Dumps from the right and left side
  • Designed to have lift positioned to ensure a good, flat horizontal prone position while diving.
  • Handles up to 38lbs/17kgs of lift.
  • One size works for all environments. No need for multiple wings for single tank diving.
  • Fits regular backplate, travel harness and soft harness

Specification

  • 1050 Denier Ballistic Cordura
  • Pleated and baffled bladder
  • Upto 38lbs/17 kg Lift capacity
  • Easily adapted to Z-Harness, Razor harness or style side-mount harnesses
  • Also fits standard back plate with Adapter

The Delta Hybrid Trim for Side-Mount Diving - Download Owners Manual

 

Designing the new Delta Trim Devices we ported over all the technology and knowledge we learned when designing the Z-System Side Mount System. We first had to ensure that we created a very low profile and streamlined "buoyancy wing" that would contour to your body - much like the Z-Trim and Z-Plus side mount trim devices do. This would reduce drag and reduce the amount of air "shift" from side to side in the wing or trim device, which ultimately causes instability.

Secondly, we wanted to create the majority of lift where the diver actually needs it to keep their feet up and their body in that flat, horizontal trim we call the prone position. This was paramount when we designed the Z-Trim Devices. Thirdly, we wanted to have an aircell big enough to create enough lift for cold water divers and yet be streamlined enough for warm water divers. In other words, you only need to purchase one size wing for all your side-mount or back-mount diving.

The Delta hybrid Trim device has from 0lbs/0kgs up to 38lbs/17kgs of lift. Keep in mind when the Delta Trim Device is empty it will NOT "Flap" around or taco around the tanks. It remains snug and streamlined around your body, reducing drag and creating easy movement through the water.

Fourth, we wanted to ensure that the inflate and deflate ability of the device functioned excellently while in the horizontal position. We spend the majority of our diving time underwater in the flat and horizontal prone position so the deflate mechanism should be positioned to accommodate that and not force the diver to go feet down or vertical to deflate using the LP hose. We decided not to mount the LP inflate and deflate in the traditional manner, which is designed for diver to be in the vertical position. What we learned from designing the Z-Trim Device for side mount diving is that the buoyancy device must dump gas in all positions including vertical and horizontal. The Delta Trim Devices are designed so divers does not have to drop their feet in order to dump gas from the LP hose. 

Features and Benefits

  • Designed for Side-mount or back-mount Diving (Z-Diving)
  • Recreational, Cave, Technical, Wreck, so much more
  • Streamline and Low profile
  • Power and oral inflator
  • Tucked in Right side Over pressure valve (OPV)
  • Designed in a triangular shape to provide lift where a side-mount diver requires it.
  • Baffled and pleated bladder to prevent bubble expansion when inflated.
  • Attachment tri-glides to attach to harness waist strap and back-strap ensuring diver is lifted from the waist
  • Low profile 90 degree robust elbow with low profile oval shaped corrugated hose.
  • Adapts and fits all style of side-mount harness (Razor) or back plates or soft harnesses. 
  • Can accommodate a Single Tank Adapter (STA) to be converted to a Back mount System (Delta)
  • Trim Device can be reversed -LP and OPV switch exchanged, allowing them to be internal.

Specification

  • 1050 Denier Ballistic Cordura
  • Pleated and baffled bladder
  • Upto 38lbs/17 kg Lift capacity
  • Easily adapted to Z-Harness, Razor harness or style side-mount harnesses
  • Also fits standard back plate with Adapter

Intro Video


Tips & Techniques Video

UTD Delta Hybrid System - Back Mount Configuration

 

UTD Delta Hybrid System - Side Mount Configuration

UTD Signature Series Small Argon Tank Harness Mount Kit 

Features and Benefits

  • Easily attach to Harness
  • Remove/replace argon bottle easily
  • Allows argon bottle to ride lower

 


UTD Signature Series Light Harness Mount Kit 

Features and Benefits

  • Easily attach to Harness
  • Remove/replace Light easily
  • Allows Light to ride lower 

 



Single Tank Adapter STA

Use a this to attach to a Z-Trim Device and and have a single back mounted tank. 

  • Attach to any Z-Harness or any backplate
  • Attach any size tank
  • Attach to Z-Harness and Z-Plus-Trim Device and mount a tank on your back.
  • Does not come with tank straps (order those separately)

 

 

UTD Signature Series Deluxe Thick Back-Pad and Mounting Strap 

Features and Benefits

  • Comes with 3/4" opencell foam Back pad and attachment Straps and Screws
  • It is neutrally bouyant - Does not add lift, does not compress
  • Fits any backplate - SS/AL/Thick/Thin
  • Fits any UTD style Side-Mount harness - Z-Harness/Razor
  • Can attach weight pouches to 2"webbing strap
  • Soft pad for backplate and side-mount harness comfort

 



UTD Signature Series 6lbs/3Kgs Ditchable/Non-Ditchable Weight Pouches 

Features and Benefits

  • Quick Ditch-able or Non Ditchable weight pouch
  • Attaches quickly and easily to any 2" webbing.
  • The 2" webbing does not have to be threaded through the attachment loop. 
  • Super secure attachment velcro loop for attaching and detaching to your harness webbing
  • Attches anywhere you have 2" webbing - Waist/Hip/Spine/Shoulder
  • Easy to move and attach to adjust trim and weighting
  • Loads up to 6lbs/3kgs per pouch

 


UTD Signature Series Shock-Cord Power Inflator Keeper and Retaining Clip 

Features and Benefits

  • Shock-Cord goes under 2" shoulder webbing comfortably
  • Holds Power Inflator off to the side so as not to interfer with the D-Ring or Stage Tanks
  • Has a slidable retaining clip


 

 

 

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