Mini vs GRCS

[Stephen Moore]

My only gripe with the GRCS is the financial kick in the balls for it

 

[evo]

My only gripe with the GRCS is the financial kick in the balls for it

But it's only one kick, not like wrabbit's

 

[theatertech87]

But it's only one kick, not like wrabbit's

until you want a second one

 

[Stephen Moore]

Helicopter is cheaper!

 

[Oroboros]

I have lifted a tree with my maasdam set up in a 2:1 over a stein bollard. Can lift closer to 3000lbs and use gear I already have.

 

[Windwalker]

I have lifted a tree with my maasdam set up in a 2:1 over a stein bollard. Can lift closer to 3000lbs and use gear I already have.

That’s how we used to do it. It works for sure, but it can be time consuming if you need to take a second bite, or a third. With a limited ground crew the less steps involved is a plus. The GRCG goes from lifting to lowering seamlessly. But it is costly no doubt.

 

[theatertech87]

That’s how we used to do it. It works for sure, but it can be time consuming if you need to take a second bite, or a third. With a limited ground crew the less steps involved is a plus. The GRCG goes from lifting to lowering seamlessly. But it is costly no doubt.

It's even fairly quick to pretension, use a rigging prussik to snub it off and transfer the line to a Porta wrap, and use the grcs on a second line

 

[Stephen Moore]

It's even fairly quick to pretension, use a rigging prussik to snub it off and transfer the line to a Porta wrap, and use the grcs on a second line

I have used similar capstan winches before and one thing is common with them. It’s really easy to over tension stuff. Be careful! I believe they say only 1 guy on the handle- there’s good reason for that.

 

[TimBr]

@Stephen Moore; When you refer to "capstan winches" being able to over tension stuff, you are referring to the GRCS, and not the Maasdam rope puller, correct? Thanks.

Tim

 

[colb]

Mini, grcs, masdam - each can overtension. You can definitely get smashed by a branch if you're working in the wrong vector path, lol. On the plus, I've thrown a piece out and around the canopy on a zipline where it shot out over a roof for the first 10 feet, then ziplined back at 180° to the bmg bollard 100 ft. away. Felt like a fookin' god, tbh, lol.

 

[Stephen Moore]

@Stephen Moore; When you refer to "capstan winches" being able to over tension stuff, you are referring to the GRCS, and not the Maasdam rope puller, correct? Thanks.

Tim

The massdam is not a capstan winch as far as I know. The winch used on the GRCS is designed for sailing boats, mostly racing yachts. It’s purpose is to haul sheets or pull up sails under really high loads and be able to release them under control and quickly.
Whatch any major sailin race and guys will be cranking hard on these exact winches. No difference, they are the same.

 

[Windwalker]

Exactly what he said. We just sold our sailboat a few months ago. My wife, who is my groundie was also my mate on the boat, so the GRCS was familiar territory.

 

[theatertech87]

Exactly what he said. We just sold our sailboat a few months ago. My wife, who is my groundie was also my mate on the boat, so the GRCS was familiar territory.

My buddies sailboat doesn't have self tailers... So going back from the grcs was kind of painful lol

 

[Stephen Moore]

My buddies sailboat doesn't have self tailers... So going back from the grcs was kind of painful lol

Some of them don’t, but many of the fast boats are fitted with them. Some are electric autos too. In any event it must be understood these devices can severely overload a system.

 

[southsoundtree]

The massdam is not a capstan winch as far as I know. The winch used on the GRCS is designed for sailing boats, mostly racing yachts. It’s purpose is to haul sheets or pull up sails under really high loads and be able to release them under control and quickly.
Whatch any major sailin race and guys will be cranking hard on these exact winches. No difference, they are the same.

I get that the Maasdam continuous rope puller, not cable come-along, is like a capstan in that the rope winds on and off, with no loss of mechanical advantage due to windings, layer upon layer, increasing the effective radius of the 'drum'.