Nose Channels ???

Hi,

during my recherche for my new longboard I stumbled across the nosechannels as Harbour Surfboards build in their (HP) Longboards.

Did anyone here already built a board with these channels?

What are youre experiences?

What dimensions of the channel are normally used? How deep are the channels, and where do they end (1/3 of the board, 50% of the board…)?

Best regards,

Andi

I have several boards (all made by him) with Harbour’s nose channels.  They work great, IMO. 

When you’re trimmed a cross-step back from the nose, they work like an accelerator pedal as you weight/unweight your front foot.  They especially do this when you’re “pig-dogging” hollow waves backside.  What they DON’T do is push water and slow the board down (making it kind of hydroplane or “float”/stall the way “soft” nose concaves do on some dedicated, “nose-rider” designs I’ve ridden). They also do not cause the board to be at all “tracky”.

I think they slightly reduce swing weight as well and help the board to plane earlier when you’re taking off.  But I’d say that’s more a subjective call, since I haven’t ridden otherwise-“identical” boards both with and without the nose channels (which would be a more “scientific” way to determine how true that is).

I won’t pretent to understand how they interact with or are complimented by alterations to other design perameters of the board or exactly how they blend into the overall bottom rocker.  On a 9’6", I can first feel them start fading in (at the rail) at about 7" back from the tip and they seem to fade out about 40" back (again, by feel). 

I know he’s been using them at least since the early '90s and has tweaked the design slightly over the years.

 

I started making boards in 03.  My first one was 9’6"x22 1/2"x3" with my rendition of Harbor nose channels.  the first time I took it out I was amazed!  It floated!  and it paddled great!  But when I moved to the nose it slipped all over the place.  So, I made another one exactly the same dimensions and shape but with a concave nose. It was SLOW!  What a DOG!  So I went back to the nose rails, learned how to control them and never looked back!  I love 'em!

Every board (almost) I’ve made since (27) has my rendition of Harbor’s nose channels (nose rails?)  After the third board I changed (thanks Bert!) to balsa composite construction.  The rails now are 1/8" balsa sheet laid down on the rails, 30" long, tapered from 2 1/2" to a point about 7" from the nose.  The inside edges are parellel.  

https://swaylocks7stage.s3.us-east-2.amazonaws.com/s3fs-public/IMG_0078.jpg

thank you very much, guys!! 

are the channels parallel to the outline? can you tell me, how deep the channels are?

@tridrles, thanks a lot, you solved my constructional problem!

 

Glad I could help…keep us informed on what you come up with.

Les

Somewhere on the Harbour website, the noseriding channels are discussed and explained on why the original design was changed. I believe they give all dimensions of the channels.

can’t find the complete dimensions there.

All I found is, that the channels are 1 5/8’’ from rail and that they are parallel to the outline.

There’s a section about nose-channels and concaves near the bottom of this page:

http://www.harboursurfboards.com/info-surfboard-design.asp

“Many better surfers claim to be able to climb and drop with them.”

 

True statement, especially as it applies to pig-dogging.

but, how deep are the channels…?

Don’t need the exact dimensions, just a hint, if it ist more like 1/8’’ or more like 1’'?

Here’s a concept for you: Why not call the Harbour shop and ask them?