MERLIN ROCKET FORUM

Topic : rudder dimensions?

Hi all,
I know there are no restricitions on rudder size, dimensions & materials but can anyone give standard or recommended dimensions? Would a larger rudder be prefereable for sea sailing over inland?
Cheers!


Posted: 22/07/2007 20:23:00
By: Mark3100
Generally a deep rudder is better than a short one - the narrow (front-back) ones tend to lose "feel" and are easy to stall unintentionally (lack of feel).
The "triangular" ones seem to be popular (presumably a balance of the above)

Colin


Posted: 23/07/2007 09:08:15
By: Colin
Thanks! - Any chance of a vague length?


Posted: 25/07/2007 13:32:41
By: Mark3100
Would that be one with a T-foil or without?!!
Seriously, I'll measure mine when I get home later in the week and give you the dimensions. Give us your email and I can send a drawing. Andy


Posted: 25/07/2007 16:17:06
By: Andy C
Andy - Stick to the forum, there are others of us following this thread! (email enclosed)


Posted: 25/07/2007 23:15:55
By: Ben 2529
My rudder measures pretty well exactly 1m from the tip to the underside of the lower pintle fitting on the rudder. Allowing for the distance to the waterline (11.5cm) this makes the true rudder length ~88.5cm. 
The maximum chord is 24cm at the waterline and this narrows to a swept back tip that looks like its been modelled on a Killer Whale's fin!


Posted: 27/07/2007 11:36:55
By: Andy C
Thanks AndyC!  That's all I was wondering about.


Posted: 27/07/2007 13:59:35
By: Mark3100

REPLY

To Reply, please join/renew membership.

Owners Association


Developed & Supported by YorkSoft Ltd

Contact

Merlin Rocket Owners Association
Secretary