Regular price
£680.00 GBP
Sale price
£680.00 GBP
Regular price
Halcyon Eclipse BC System
Usually with you within 7 working days.
Need it sooner? Contact us
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Halcyon Eclipse BC System
The Eclipse BC System is a complete Halcyon single cylinder rig: the Eclipse wing, a backplate, a harness and a single tank adapter, built by Halcyon as one matched system. The Eclipse is the long, narrow single tank wing Halcyon built its reputation on, and this is the most affordable way into a full Halcyon single cylinder setup.
You choose between three builds. Standard sits on an aluminium plate with a one-piece webbing harness and a stainless steel single tank adapter. Deluxe sits on a stainless steel plate with a padded Cinch quick-adjust harness and a stainless steel single tank adapter. Pro sits on a carbon fibre plate with a Cinch harness and a carbon fibre single tank adapter, and it is the lighter rig to fly with.
We dive and teach in Halcyon kit in the quarries, at Mercers Lake and on the south coast, so we can tell you how each build behaves with a real cylinder on your back. Halcyon builds every system to order. At the time of writing, Halcyon quotes about a week for a black build to reach us.
- Complete single cylinder system: wing, backplate, harness and STA
- Eclipse wing, 30 lb or 40 lb lift
- Standard: aluminium plate, webbing harness, stainless steel STA
- Deluxe: stainless steel plate, deluxe padding, Cinch harness, stainless steel STA
- Pro: carbon fibre plate, Cinch harness, carbon fibre STA
- Aluminium and steel plates in standard, small or long; carbon in standard or small
- Inflator with 52 cm / 22 in LP hose
- Black as standard, custom colours built to order
Before you order: this is a single cylinder system. Choose your lift, then your build, then your plate size. Want the newer single wing with built-in trim pockets and dual hose openings? Compare the Era Standard, Era Deluxe and Era Pro systems.
Want ACB pockets, a weighted STA or a custom colour built in? Halcyon can build the Eclipse with any of these. Contact us and we'll price it and order it in. For colours, put your build together in Halcyon's configurator and send us a screenshot. Custom colours are built to order, so allow around 8 weeks.
Why divers choose the Eclipse BC System
A proven wing with nothing to prove
The Eclipse has been Halcyon's single tank wing for years. Its long, narrow shape sits close to the cylinder and keeps lift where it helps your trim. Students who move into an Eclipse rig from a jacket BCD usually find their position settles within a couple of dives.
Parts that are made to work together
Wing, plate, harness and single tank adapter come from Halcyon as one system. There is no guessing whether a third-party plate suits the wing or whether the adapter lines up. We order it, it arrives, and the parts belong together.
Harness changes without rethreading
Moving from a 5 mm wetsuit abroad to a drysuit at Mercers Lake usually means rethreading webbing. The Cinch harness on the Deluxe and Pro builds tightens and loosens by hand, so you can gear up loose and snug it down once you're sitting on the cylinder, even with gloves on.
A rig you won't outgrow
This is the same backplate and wing approach used on technical dives. Take it from Open Water through to technical training and the core of the system doesn't need replacing.
Features that matter underwater
Eclipse wing
A long, low-profile single tank wing in 30 lb or 40 lb lift, with an inflator and 52 cm / 22 in LP hose as standard. It keeps a clean outline behind you and puts very little bulk around the cylinder.
Standard: aluminium plate and webbing harness
The simplest and lowest-cost Halcyon single cylinder rig: an aluminium backplate, a one-piece webbing harness with crotch strap and a stainless steel single tank adapter. It is lighter to travel with than steel.
Deluxe: stainless steel plate, padding and Cinch
A steel plate and steel single tank adapter put weight low and central on your back. For UK drysuit diving, that is ballast you no longer carry on a belt. The deluxe padding helps on long walks to the water with a full cylinder on your back.
Pro: carbon fibre plate and carbon STA
Carbon is stiff, light and does not corrode. Swap a steel plate and adapter for carbon and you take a noticeable chunk of weight out of your luggage. As a guide, a bare standard stainless steel plate weighs 2.22 kg and a bare standard carbon plate 0.54 kg.
Plate sizes
The aluminium and steel plates come in standard, small or long. The carbon plate comes in standard or small. Small and long cost no more than standard. Most divers fit the standard plate, while small and long plates suit shorter and longer torsos. If you're unsure, ask us before you order.
This is a single cylinder system. Lead is not included. Add the ACB weight system for releasable ballast, or Halcyon trim weight pockets for fine trim.
Who is the Eclipse BC System for
- Single cylinder divers moving from a jacket BCD to a backplate and wing
- Divers who want a complete Halcyon rig at the lowest system price
- Divers who switch between a wetsuit abroad and a drysuit in the UK
- Anyone planning technical training who wants a rig they can grow into
Who it may not be for: if you want built-in trim pockets and dual hose openings, the Era systems are the better match. If you dive twinsets, you want a doubles system. Compare options in our wings collection.
How to get the best from the Eclipse BC System
- Choose lift before you order: 30 lb for most UK and mixed single cylinder diving, 40 lb for heavy steel cylinders or bulky drysuit undersuits.
- Choose steel if you want ballast on your back, aluminium or carbon if you travel or dive warm water.
- Set the harness in your thickest exposure suit first. On Deluxe and Pro, use the Cinch to take up slack in thinner suits.
- Position the single tank adapter so the valve sits just below the back of your head when you're horizontal.
- Check trim in a pool with a full and a nearly empty cylinder, then rinse the inflator and dump valves after every dive.
Spend over £100 with us and you can bring your new kit to one of our instructor-run pool sessions for free, to get confident with it. It is not one-to-one coaching, so you dive it yourself, and kit that has been in the water cannot be returned. We can also help you set up your system in Soho, London when our instructors are teaching there. This has to be arranged in advance, as it is not a walk-in service. Contact us to arrange it.
Specifications
| Type | Single cylinder backplate and wing system |
|---|---|
| Wing | Halcyon Eclipse, 30 lb or 40 lb |
| Backplate | Standard: aluminium. Deluxe: stainless steel. Pro: carbon fibre |
| Plate sizes | Aluminium and steel: standard, small or long. Carbon: standard or small |
| Harness | Standard: one-piece webbing. Deluxe and Pro: Cinch quick-adjust |
| Padding | Deluxe padding on the Deluxe build |
| Single tank adapter | Standard and Deluxe: stainless steel. Pro: carbon fibre |
| Inflator | Included, with 52 cm / 22 in LP hose |
| Backplate weight (bare) | Steel: 2.22 kg standard, 1.83 kg small, 2.52 kg long. Carbon: 0.54 kg standard, 0.45 kg small |
- Colours: black as standard, custom colours built to order through Halcyon's configurator
- Lead time: about a week for black, around 8 weeks for custom colours (Halcyon's estimate at the time of writing)
What's included
- Eclipse wing in your chosen lift
- Aluminium (Standard), stainless steel (Deluxe) or carbon fibre (Pro) backplate in your chosen size
- Harness with crotch strap: one-piece webbing on Standard, Cinch quick-adjust on Deluxe and Pro
- Deluxe padding (Deluxe build)
- Stainless steel (Standard and Deluxe) or carbon fibre (Pro) single tank adapter with cylinder straps
- Inflator with 52 cm / 22 in LP hose
Cylinder, regulator and lead are not included. Contact us for a quote on a complete setup.
Frequently asked questions
"Standard, Deluxe or Pro?"
If you mostly dive the UK in a drysuit, Deluxe. The steel plate and adapter carry ballast you would otherwise wear on a belt. If you fly with your kit or dive warm water in a thin wetsuit, Pro. The carbon saves weight in your bag. If you want the lowest price and are happy with a plain webbing harness, Standard.
"Should I get 30 lb or 40 lb?"
For most single cylinder diving, 30 lb is enough. Go to 40 lb if you carry a heavy steel cylinder, dive a drysuit with bulky undersuits, or like extra margin on the surface. If you sit between the two, ask us.
"Eclipse system or Era system?"
The Era wing adds four zippered trim pockets, dual hose openings and a low-profile elbow, and the Era systems cost more. The Eclipse is the proven, simpler wing. If the trim pockets matter to you, go Era. If not, the Eclipse does the job well.
Does it come with weights?
No. Add the ACB weight system for releasable ballast on the harness, or Halcyon trim weight pockets for fine trim correction. If you want ACB pockets or a weighted single tank adapter built in by Halcyon, contact us before you order.
Can I use it on twin cylinders?
No. This is a single cylinder system.
Can I get a custom colour?
Yes. Black is our standard colour. Custom builds are made to order through Halcyon's configurator, so allow around 8 weeks.
Buy the Eclipse BC System
Pick your lift, then your build, then your plate size, and we'll order it in.
Order yours or talk to an instructor first
Order online, or get in touch and we'll help you choose lift, build and a complete setup.