Walder Boombrake Help

TerryP · 04-02-2007, 08:17

Wondering if anyone has experience with a Walder Boombrake. I would like to know how they work? My present boat is a 28' Tri and I'm looking at the Walder Boombeake Model 403 which is listed for a larger boat then mine. I'm thinking that I might upgrade to a larger boat someday. Can I get by using the larger unit on a smaller boat? It appears that the boombrake works on friction by wrapping a line around the drum, just like a winch. The model 403 uses 9/16 line and I want to drop down to 3/8 line. Do you think that this is feasible?

TIA
Terry P

**GordMay** · 04-02-2007, 09:04

The #403 Walder Boom-brake is recommended for a much larger boat, in the 39 - 52 foot range.
There are a number of smaller units, such as the #203, rated 28 - 38 Ft, and utilizing an 8mm (5/16") diameter line.
Goto: Frein de bome Boombrake Boom brake Freno de botavara Baumbremse Walder

They’re “pricy” items, at about $500 USD the #203 is only 75% the cost of the #403 (about $675).

The Walder Boom brake was popularised in the mid-l980s, following the first BOC Challenge. Philippe Jeantot won the race and use the Walder Boom-brake all the way around the world.

TerryP · 04-02-2007, 09:20

Thanks Gord, I've found a used model 403. Thats why I'm hoping I can make it work.

**GordMay** · 04-02-2007, 14:12

I don't believe you should "significantly" reduce the specified line size.

delmarrey · 04-02-2007, 15:19

I have the Dutchman Boom brake. It's pretty much the same but I would not go out with out it now. I just about tore my arm off on an accidental jibe once and that was enough to convince me that the cost was nothing compaired to the pain a boom can conflict on a person.

You won't need to set up a preventer ever again. But you do have to get the attachment points in the precise spots for it to work 100% the way it's suppose to.

And Yes, go with the line size it recommends. Too small will cut into the sheaves!......................._/)

04-02-2007, 08:17	#1
TerryP Registered User Join Date: Jan 2007 Location: Havana,FL Boat: Seapearl 21 Tri, Telstar 28 Tri Posts: 5 Images: 4	Walder Boombrake Help Wondering if anyone has experience with a Walder Boombrake. I would like to know how they work? My present boat is a 28' Tri and I'm looking at the Walder Boombeake Model 403 which is listed for a larger boat then mine. I'm thinking that I might upgrade to a larger boat someday. Can I get by using the larger unit on a smaller boat? It appears that the boombrake works on friction by wrapping a line around the drum, just like a winch. The model 403 uses 9/16 line and I want to drop down to 3/8 line. Do you think that this is feasible? TIA Terry P

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04-02-2007, 09:04	#2
GordMay Administrator Site Administrator Join Date: Mar 2003 Location: Thunder Bay, Ontario - 48-29N x 89-20W Boat: C.L.O.D. (Cruiser Living On Dirt) Posts: 9,728 Images: 232	The #403 Walder Boom-brake is recommended for a much larger boat, in the 39 - 52 foot range. There are a number of smaller units, such as the #203, rated 28 - 38 Ft, and utilizing an 8mm (5/16") diameter line. Goto: Frein de bome Boombrake Boom brake Freno de botavara Baumbremse Walder They’re “pricy” items, at about $500 USD the #203 is only 75% the cost of the #403 (about $675). The Walder Boom brake was popularised in the mid-l980s, following the first BOC Challenge. Philippe Jeantot won the race and use the Walder Boom-brake all the way around the world. __________________ Gord May ~~_/)_~~ (Gord & Maggie - "Southbound") "If you didn't have time/$ to do it right in the first place, when will you get the time/$ to fix it?"

04-02-2007, 09:20	#3
TerryP Registered User Join Date: Jan 2007 Location: Havana,FL Boat: Seapearl 21 Tri, Telstar 28 Tri Posts: 5 Images: 4	Thanks Gord, I've found a used model 403. Thats why I'm hoping I can make it work.

04-02-2007, 14:12	#4
GordMay Administrator Site Administrator Join Date: Mar 2003 Location: Thunder Bay, Ontario - 48-29N x 89-20W Boat: C.L.O.D. (Cruiser Living On Dirt) Posts: 9,728 Images: 232	I don't believe you should "significantly" reduce the specified line size. __________________ Gord May ~~_/)_~~ (Gord & Maggie - "Southbound") "If you didn't have time/$ to do it right in the first place, when will you get the time/$ to fix it?"

04-02-2007, 15:19	#5
delmarrey Registered User Join Date: Mar 2003 Location: Puget Sound, WA Boat: Choate 40 Posts: 3,549 Images: 115	I have the Dutchman Boom brake. It's pretty much the same but I would not go out with out it now. I just about tore my arm off on an accidental jibe once and that was enough to convince me that the cost was nothing compaired to the pain a boom can conflict on a person. You won't need to set up a preventer ever again. But you do have to get the attachment points in the precise spots for it to work 100% the way it's suppose to. And Yes, go with the line size it recommends. Too small will cut into the sheaves!......................._/)