Bulldog OAR ascender/descender

[Pedroski]

3/4 size OAR

 

I like it

[Paul Smith]

What about 11mm line?

[surveyor]

I am currently experimenting with both the full size OAR and the 3/4 size for use on smaller dia. rope. One of the unique features of the OAR is the ability to interchange roller sizes for use on different size ropes, and to add rack arms as required. It is my hope that it will descend on rope as small as 9mm, but that remains to be seen, as the smallest rope I currently have is a short piece of Poison Ivy and a short piece of Rocket line. I am testing now with the short piece of Rocket Line that was sent to me for a custom made OAR.

 

 

[Old Mill Tree Care]

3/4 size OAR

 

Ooooo! I want one and don't even care if it doesn't work. Just look how the sun makes it sparkle!! 😘

[surveyor]

You should see the way the brass reflects off the shiny chain link pins : )

[Paul Smith]

I use a unicender all the time and have done for a couple of years. I would like to try one of these for comparison. What about replacement parts etc?

[surveyor]

The rollers and link pins are all easily replaceable.

[Paul Smith]

Where can I get one from, how much and what's the cost and predicted ware with 11mm line?

[surveyor]

Paul see your private messages. I have not tested the OAR on 11mm line as of yet. Let me know what manufacture rope you climb on and, if I can obtain some to test with, I could try to make a custom OAR for that size and manufacture. I have no long term tests for wear as this is a new prototype device, however the high grade steel friction surfaces should last well.

[softbankhawks]

Full size three rack Oar: on all ropes in the following list the OAR ascends very smoothly.

Descent on :

Tachyon - smooth, slips occasionaly

11mm power static - does not hold

New England hivee - does not hold

Poison Ivy - tight, needs two arms to release

The Fly - smooth, slips very occasionaly

 

I think the compact kernmantle construction of The Fly helps in regards slippage. Any rope that flattens seems to suffer this with the OAR. The Fly on paper is 11mm but in reality is much larger. Notice how the 11mm power static did not hold at all.

I'd like to play with adding more arms and compare the 3/4 size. It compares to the Unicender in many regards. When the correct rope is chosen a climber has a very smooth and intuitive descent function.