Hi All,
About to knock up some ply keels for fish #2
(5’8" x 21 x 2 3/4 x 17n x 16t)
Wondering if l should go single or double foil??
Most old style’s about are single but have seen a few
double’s lately - was wondering the difference???
Also what thickness should keels be prior to glassing???
BTW - Looking @ 7 1/2 x 4 1/2 with a bit of rake
or 7 1/2 x 4 1/4 with less rake (straighter back)
Ant
gday ant: i went for double foiled plywood keels on my 5’&7". they’re not true 50/50 foiled, more 60/40 with the 60 obviously on the outside. the specs are as follows: 9 & 3/4" base, 5" deep (these measurements include the 1/4" clear halo around the entire fin). you can see in the photo that they’re true D-keels, very upright trailing edge, no rake at all.
i hope this info helps ant.
i’m no expert about the whole single versus double-foiled debate but, from my experience at riding both, i find the double keels tend to hold longer through turns while the singles release quicker & are more ‘snappy’ like a thruster. when you’re up and driving & really on rail, you’re basically surfing off one keel & of the swallowtail’s pins - for me the feeling is a little like riding a singlefin pintail - so in my opinion it makes sense to have a double foil. but, like i said, i’m more enthusiast than expert.
for my board’s specs the original thread can be seen at:
http://www.swaylocks.com/forum/gforum.cgi?post=239521;search_string=5%277%22%20fish;#239521
Cheers Oldy,
Nice looking board & sweet keels
PS How’d ya go shaping the bum crack???
couple more for you ant:
How'd ya go shaping the bum crack????
very slowly & very carefully & very nervously!
after raiding a whole bunch of ideas in the forums, i shaped the bum crack last using a round tapered file, then paper wrapped round a pencil, & cleaned-up with screen.
Yeah fun aint it
l used one of those dremel type things l got
from supa cheap auto for like $30 with 40 odd attachments
& found it works quite well for sanding the stringer - just gotta
masking tape the foam 3-4 pieces each side at least
antsville,
My keels usually end up around 3/8" at the base. I use them double or single foiled. Single foiled are supposed to be a little less tracky I hear. I havn’t found that to be true, though. Mike