Version A	Version B

Overview

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Version A
(#398)

Front View	Rear View	Side View

Technical Details

I acquired this rack from John E. Weinel, Inc. in 1989.

My Rescue Systems Inc. rack is 330 mm. tall, 111 mm. wide, 25 mm. thick, and weighs 957 g. The frame is made from 9.5 mm. stainless steel bent into a U, with an internal width of 36 mm. There are six unfinished solid aluminum brake bars. The bars are 25 mm. in diameter. The top bar is 111 mm. long, and the other five are 73 mm. long. Allowing 35 mm. for the rope leaves 96 mm. for spreading the bars.

There are no markings on this rack, but there is a faded sticker on the top bar.

Comments

This rack is one of Kyle Isenhart’s company’s racks. The ASR NFPA and large SBCI racks are similar.

The large aluminum bars provide for a lot of heat absorbtion and dissipation. Some people may be surprised to learn that Kyle’s "Temperature Study of Rappelling Devices" in The Nylon Highway #4 indicates that the thermal performance of aluminum and stainless steel bars are similar.

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Version B
(#2445)

Front View	Rear View	Side View

Technical Details

I acquired this rack from Bob & Bob in 2017.

Version B rack is 333 mm. tall, 111 mm. wide, 25 mm. thick, and weighs 999 g. The frame is made from 9.5 mm. stainless steel bent into a U, with an internal width of 36 mm. There are six solid aluminum brake bars, with the top, third and fifth bars being polished and clear anodized. The bars are 25 mm. in diameter and 111 and 73 mm. long. Allowing 35 mm. for the rope leaves 100 mm. for spreading the bars.

There are no markings on this rack.

Comments

The odd-numbered bars are polished and clear anodized like the odd-numbered bars on the ASR NFPA and large SBCI racks, but the even numbered bars have the mill finish that the Version A bars have, making this rack an interesting hybrid.

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