Search found 113 matches

by Andy P
Wed Jan 27, 2016 1:35 pm
Forum: Latest Developments
Topic: Proposed Rule Changes - Ballot
Replies: 29
Views: 35914

Re: Proposed Rule Changes - Ballot

What about the foiling scow ( or AC cat ) configuration, that has no ' centerboard ' but has leeboards, with lifting surfaces. ?
It's tricky to write the rule without loopholes.
by Andy P
Wed Jan 20, 2016 10:31 pm
Forum: Latest Developments
Topic: Proposed Rule Changes - Ballot
Replies: 29
Views: 35914

Re: Proposed Rule Changes - Ballot

'Hydrofoils' includes both horizontal and vertical foils. - and anything inbetween.
limiting to one 'hydrofoil' would make sailing a bit difficult.
The equivalent flying term 'aerofoils' would include wings, tailplane and vertical stabiliser.
by Andy P
Wed Jan 20, 2016 10:22 pm
Forum: Latest Developments
Topic: Proposed Rule Changes - Ballot
Replies: 29
Views: 35914

Re: Proposed Rule Changes - Ballot

In early moth T-foil days, we used reversible daggerboard rudders - so you could have a 'normal' blade for light winds, or turn it upside-down, and have a T-foil for when it's choppy or windy. This would be a simple workaround to the proposed new rule. However we found that for 99% of the time, it w...
by Andy P
Sun Sep 18, 2011 4:57 pm
Forum: Latest Developments
Topic: Proposal for increase in minimum weight to 55Kg?
Replies: 45
Views: 48835

Re: Proposal for increase in minimum weight to 55Kg?

My boats have 200g/m² carbon inside, 200g/m² carbon + 86g/m² glass outside. ( and heavier or two layers of carbon on the crewdeck ) To equal the stiffness of the carbon would need at least twice as much glass, so maybe adding 7-8kg. To laminate over a solid foam core there is a weight / dent / stiff...
by Andy P
Fri Sep 16, 2011 8:12 am
Forum: Latest Developments
Topic: Proposal for increase in minimum weight to 55Kg?
Replies: 45
Views: 48835

Re: Proposal for increase in minimum weight to 55Kg?

I must begin by saying that I reckon that with the current build it will be absolutely impossible for me to get anywhere near the 50kgs. First I haven’t got a vacuum pump at present Ian But you should only be using an stone axe to hollow out a tree trunk! ( not any of those new-fangled metal tools,...
by Andy P
Wed Sep 14, 2011 8:02 am
Forum: Latest Developments
Topic: Proposal for increase in minimum weight to 55Kg?
Replies: 45
Views: 48835

Re: Proposal for increase in minimum weight to 55Kg?

My first minimalist version of Tin Teardrop was 40kg, and eventually ended up at 47kg, after adding fore/aft seat tracks, flare/deck extensions, moving the rig back, moving the centrecase etc etc. If I'd added more rake/rig tension adjustments, it would still have been less than 50Kg even after all ...
by Andy P
Wed Jun 08, 2011 2:39 pm
Forum: How to......
Topic: General advice for a newbie in a Nethercott IC
Replies: 10
Views: 14374

Re: General advice for a newbie in a Nethercott IC

I have used the self-adhesive pro-grip - it sticks surprisingly well ( and without the bubbles of unstuck that brush-on evostik gets) The edges as usual need care to make sure they are well stuck, and engineered so you you don't peel up the edge. Maybe by running over the gunwale/deck edge, so it's ...
by Andy P
Thu Apr 21, 2011 2:59 pm
Forum: Latest Developments
Topic: New IC's
Replies: 46
Views: 57704

Re: New IC's

Dragonfly is nearly finished, 'only' the fairing to do.

http://www.mediafire.com/?t538zjvhj2hdd
by Andy P
Sun Mar 13, 2011 8:17 pm
Forum: Latest Developments
Topic: New IC's
Replies: 46
Views: 57704

Re: New IC's

some more building pics of the Dragonfly shell + bulkheads etc here :
http://www.mediafire.com/?t538zjvhj2hdd
by Andy P
Thu Jan 27, 2011 5:13 pm
Forum: Latest Developments
Topic: New IC's
Replies: 46
Views: 57704

Re: New IC's

Dragonfly mould is finished, taped up and waxed.
some pics at :

http://www.mediafire.com/?t538zjvhj2hdd
by Andy P
Mon Jan 03, 2011 8:09 pm
Forum: UK Forum
Topic: UK Boats in build
Replies: 18
Views: 15283

Re: UK Boats in build

Although my account is very long, there are still bits I have left out / can't remember when writing. The carbon I use is ±45° stitched at 1.35m wide, so there are no overlaps, the width is just right from gunwale to gunwale. The fine glass outer layer ( only 1m wide ) is overlapped at the centrelin...
by Andy P
Sun Jan 02, 2011 10:16 pm
Forum: UK Forum
Topic: UK Boats in build
Replies: 18
Views: 15283

Re: UK Boats in build

Ok here's a bit more detail on how I do it. ( maybe not the best or fastest way, but it seems to work OK for me ) Mould surface : Normally my boats are ply friendly, with limited double curvature. Alistair's boat has a similar kind of bottom panel, so was easy to bend and fit the ply fair. The Morri...
by Andy P
Thu Dec 30, 2010 10:08 pm
Forum: UK Forum
Topic: UK Boats in build
Replies: 18
Views: 15283

Re: UK Boats in build

A question for the experts.. with a male mould is it best to apply the first inside carbon skin and vacuum on or can you apply the foam at the same time. I suspect it will be fidly and messy putting on the foam but presumably will reduce the amount of epoxy required. Suggestions please. Doing it on...
by Andy P
Sun Dec 26, 2010 4:45 pm
Forum: UK Forum
Topic: UK Boats in build
Replies: 18
Views: 15283

Re: UK Boats in build

Colin Brown is busy trimming the moulding edges, and sticking bulkheads in on the Morrison IC. Alastair's mould is coming along nicely - the ply skins are on, some fairing and glass skinning to do. Mould construction: 11 frames of MDF, spiled through a fullsize plotting from Alistair's CAD design. (...
by Andy P
Sat Nov 20, 2010 4:46 pm
Forum: Latest Developments
Topic: New IC's
Replies: 46
Views: 57704

Re: New IC's

Colin picked up his boat yesterday 19 Nov ( I say boat, but more a collection of carbon double-sided foam curvy pieces :D )

Dragonfly gets started on Monday. 22 Nov