P/N 90019010 - QUICK RELEASE BOX
The QRB is the connection between the rescue man and the hoist system of the helicopter.
The QRB is able to open under tension up to 150 kg.
Security wise this is a very important ability !
If the rescue man get into problems, entangled on a wreckage or stock between rocks in the mountains, the helicopter has a problem, and the crew could be forced to cut the cable. If this happens for a one hoist helicopter, the helicopter is not able to get back to rescue the rescue man, and far the less the victim.
The QRB is manufactured from anti-corrosion treated stainless steel, which makes it extremely resistant to saltwater corrosion. Daily maintenance after use in saltwater, is limited to a quick shower in fresh water. Once a year, the QRB must be disassembled, cleaned, lubricated and have new springs.
In 2008 we updated the QRB from Mk-2 to Mk-3. The upgrading offers several significant improvements to the safe handling of the QRB. The rescue man will have a much more destinct feeling of the michanism when operating the lid.
Stronger springs improves the safety of operation. The color of the lid has changed from grey to BLACK and we have inserted a LIME GREEN bar in the lid. The contrast between the 2 colors enables the crew members from a distance to tell if the QRB is in the SAFE position. The bar stays 3mm proud of the lid enabling the rescue man to feel, even with gloves, if the bar is horisontal and in SAFE position.
P/N 60081470 - SUSPENSION STRAP
The suspension strap is the connection between the Quick Release Box and the hoist system of the helicopter.
The design allows the middle ring to carry load in both directions.
Downwards if you want to carry extra equipment or a dog during the hoist ride.
Upwards if the rescue man is forced to shift from one hoist cable to another in the air under a dual hoist equipped helicopter.
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