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View Full Version : hydrofoil parts maker or for sail?

colin gillard
07-09-2011, 01:06 AM
I m looking for hydrofoils less the Boat .for 9m vessel . Dues any One know where there made or is the a set I can buy 2nd hand .
coak@live.com.au
Frosty
07-09-2011, 02:47 AM
This could be an interesting thread. I was once thinking of using discarded helecopter rotors apparantly they are about the right NACA in alluminium.

How big and what kind of boat do you want to lift.
colin gillard
07-09-2011, 11:35 PM
What a Great idea ! a launch (composite/glass)for day trips , to Islands and coastal runs . a beam on 2m max swell
Frosty
07-10-2011, 01:25 AM
What a Great idea ! a launch (composite/glass)for day trips , to Islands and coastal runs . a beam on 2m max swell


Well don't just run off and do it, we want to know what happens, how you did it and some pics too.

Apparantly the firm that manufactures them wants the old ones back to destroy, but I got a deal that the operating lugs would be cut off and I could take the rotor blade only (fine with me). The guy died before I got one.

The chord is about 1 foot which I think would be perfect.
PAR
07-10-2011, 06:17 AM
A cordless reciprocating saw on a moonless night could yield you a life time supply of foil shapes.
Frosty
07-10-2011, 09:42 AM
I have a feeling Par has his tounge in his cheek.
colin gillard
07-11-2011, 12:54 AM
sound s good to . but material and cross section shape ? You would nt have that in put ?
Frosty
07-11-2011, 02:55 AM
Depends on what chopper you have as a donar.

I did all this some time ago and now forgotten but the rotor I was getting was surprisingly the NACA I wanted.
colin gillard
07-11-2011, 11:30 PM
Which rotor was that ? I regularly travel by chopper. Where could I find a cross section Plan?
Frosty
07-11-2011, 11:45 PM
Find out what chopper it is then google it

I was "going" to get a blade of a Sikorsky. Sorry about spelling

Then google NACA design. You quite a bit to go have'nt you?

here is an example of the differences it is by all means not all of them --there is thousands.
colin gillard
07-13-2011, 08:52 PM
thanks for that . I always saw the similarity s between air and water shapes
Doug Lord
07-13-2011, 09:00 PM
I m looking for hydrofoils less the Boat .for 9m vessel . Dues any One know where there made or is the a set I can buy 2nd hand .
coak@live.com.au

=========================
Dr. Sam Bradfield( hydrofoil pioneer) and his company Hydrosail offer aluminum and carbon fiber hydrofoils for different loadings as well as hydrofoil engineering services-contact them for more information( premade foils for boats 16' - 40') :
http://sites.google.com/site/hydrosail/HydroSail-Home
----
John Ilett of Perth Australia is a custom hydrofoil builder with engineering capabilities as well. He built some excellent custom wood and carbon fiber foils for me(see pix below) : http://www.fastacraft.com/

Good luck-I'd like to hear more about your application at your convenience.

click on image for more detail---
colin gillard
07-13-2011, 09:10 PM
Bingo . thanks for that. Looks neat. . I got some great info Here. thanks

View Full Version : hydrofoil parts maker or for sail?