Return Previous

Triangle

Version A Version B
Version A Version B

Overview


Version A
(#993)

Front Rear
Front Rear

Technical Details

I made this triangle in 2005.

This triangle is 172 mm. tall, 137 mm. wide, 42 mm. thick, and weighs 399 g.

Comments

There is one of these in the NSS museum (photo at right) that I've wondered about for years. I've talked to the curator, a good friend of mine, and he doesn't have any information on who made it or where it came from. I finally decided to make one for myself, so I bent a piece of 11 mm. steel rod that I had laying around. Unfortunately, I didn't have any plated rod long enough at the time, and I wasn't careful about the dimensions.

The dimensions are clearly not critical. Note that the triangle is not flat: the extension to the left is bent away from the reader at about 30 degrees. This helps keep the rope in place. Also note that mine is left-handed while the NSS museum original was right-handed. I used a 30°-30°-120° triangle, the NSS museum original is closer to 45°-45°-90°. In both cases, the two congruent sides of the triangle are about 75 mm. long.

The Triangle reminds me of the Lirakis Sidewinders and it functions similarly. It is too large and heavy for so little performance, so I view it with historical curiosity and would not seriously consider making this my primary descender.

Does anyone know who made this, what it is really called, if it was commercially available, and if so, where I could get one? If you have any information, please email me.

Version B
(#999)

Front Rear
Front Rear

Technical Details

I made this triangle in 2005.

This triangle is 124 mm. tall, 140 mm. wide, 36 mm. thick, and weighs 335 g.

Comments

I made Version B about a month after making Version A, having found some plated 11 mm. steel rod in a local hardware store. This time I tried to match my memory of the dimensions of the NSS museum original. It was a hot and humid morning when I made Version B and nothing seemed to be going well in the shop that day, but I managed to get closer to the original. I also made this version right-handed like the museum original. Version B is lighter and smaller than Version A, but still too heavy or bulky for the performance it delivers.