[Paddlewise] Rudder types?

From: Product Information Department <pid_at_mec.ca>
Date: Wed, 01 Apr 1998 12:36:15 -0800
May I take the rudder discussion in a new direction? (Sorry about that.)
As background, I paddle without my rudder 95+% of the time. Would-be
helpful kayakers I encounter are always pointing out to me that I've
"forgotten" to lower it.

Anyway, in the last several years Feathercraft and similar thin, tall surf
rudders have become pretty standard, especially on single kayaks. My
understanding of their advantages:
1) They submerge below surface turbulence to grip the "solid" water beneath. 
2) They can retract fully onto the rear deck to avoid catching following
seas when paddling, or following paddlers when portaging, or following cars
when driving.
3) By being smaller, they have less drag than wider, shorter rudders.

The case I've heard for wider rudders:
1) They offer more turning power for tighter turns, especially important in
doubles where paddles are used more for propulsion than control.
2) They can be cranked to a greater "angle of attack" before they stall to
cease being rudders and start being brakes.
3) By effectively increasing the waterline length of the hull, they create
less drag than thin rudders (a direct contradiction of point 3 in the
previous paragraph).

I throw this out for discussion and comments (I'd be especially interested
in John W's thoughts). Breathlessly awaiting being deluged by the fountain
of knowledge that is PaddleWise.

Philip Torrens
"The opinions expressed in this posting are not necessarily those of my
employer, or indeed, of any sentient being."



****************************************
Mountain Equipment Co-op
1655 West 3rd Avenue,
Vancouver, BC, Canada V6J 1K1
Tel: 640-732-1989
Fax: 604-731-6483
email: pid_at_mec.ca

Visit our website at: http://www.mec.ca
*****************************************
***************************************************************************
PaddleWise Paddling Mailing List
Submissions:     paddlewise_at_lists.intelenet.net
Subscriptions:   paddlewise-request_at_lists.intelenet.net
Website:         http://www.gasp-seakayak.net/paddlewise/
***************************************************************************
Received on Wed Apr 01 1998 - 13:53:50 PST

This archive was generated by hypermail 2.4.0 : Thu Aug 21 2025 - 16:29:55 PDT