Lothar Weidinger black Russian IDA

After receiving several homebuild projects from Lothar Weidinger he now managed to make a very nice streamlined model. The original green color has been changed to black, but not only the outside has another appearance! Look as this rebreather! There are many things in this model I like very much. The mouthpiece is the Submatix one hand operated one! Check this out:

Most people already know all the names and abbreviations, but for new readers a little help:

  • IDA 71 russian semiclosed chemical rebreather, selfgenerating  cartridge, scrubber cartridge
  • MCCR manual controlled closed circuit rebreather (setpoint is maintained manual)
  • CMF constant mass flow valve, a valve that “bleed” oxygen in the loop with a fixed mass (flow)
  • RG-UF/M East German tank rebreather
  • Oxygauge, device to measure the partial pressure of Oxygen
Lothat Weidinger Black IDA 71 001

The housing is a black powder painted. It looks like new.
It is designed as a MCCR with CMF valve equipped with 2×2 l cylinders, one for Oxygen and the other one for Bailout/BC-Inflation/Dry-suit-Inflation (Air). I planned for deeper/ longer dives to use an extern bailout (3-l-Aluminium, side-mounted) with Nitrox 50.

Lothat Weidinger Black IDA 71 002

Lothat Weidinger Black IDA 71 003

The Oxygen-mass-flow comes, like in all my rebreathers, from a RG-UF/M regulator.

Lothat Weidinger Black IDA 71 004

The one-hand-mouthpiece is from Submatix.

Lothat Weidinger Black IDA 71 005

For ppO2-controlling I use two Oxygauges. The BC-Jacket is a weight-integrated old Seaquest Black Diamond.
There is also the possibility to breath (OC) from the oxygen-cylinder in depths up to 6 m.

Lothat Weidinger Black IDA 71 006
Lothat Weidinger wearing his Black IDA 71

Lothar, thanks for the contribution to my web!

JW

Therebreathersite was founded by Jan Willem Bech in 1999. After a diving career of many years, he decided to start technical diving in 1999. He immediately noticed that at that time there was almost no website that contained the history of closed breathing systems. The start for the website led to a huge collection that offered about 1,300 pages of information until 2019. In 2019, a fresh start was made with the website now freely available online for everyone. Therebreathersite is a source of information for divers, researchers, technicians and students. I hope you enjoy browsing the content!