Saturday, November 20, 2010
Tuesday, November 16, 2010
Wanted
Any internationals want to avoid return shipping costs by selling me their boat after the worlds? Probably asking a bit late now but I'll put it out there anyway.
Oh, and Markla would like to buy some skill. Preferrably before the worlds. Bora or Adam may have some skill they won't need with their rumoured speed advantage. Cash it in!
PS. Did I see correctly, two wings going into the US container?
Oh, and Markla would like to buy some skill. Preferrably before the worlds. Bora or Adam may have some skill they won't need with their rumoured speed advantage. Cash it in!
PS. Did I see correctly, two wings going into the US container?
Sunday, November 14, 2010
SLINO Design Files
Please Note:
I am publishing this information as a personal reference only. If you chose to replicate it, it is at your own risk. This information carries no warranty and has not been thoroughly thought through or engineered. Building and sailing a moth to this design could seriously hurt you and/or cost you a lot of money and/or cause emotional damage.
If you do attempt to replicate derivate from this information please send me an email – I am always interested to see where this design leads. (mr.markla@gmail.com)
See Also:
http://perverted-moth.blogspot.com/2009/01/new-moth-design.html
Documents and Calculations
SL2-A1-01A - Drawing and Document List
SL2-A1-02A - SLINO Build Sequence
SL2-A1-03 - Parts List
SL2-B1-01 - Weight Estimate
SL2-B2-01 - Table of Hydrostatics
SL2-B2-02 - Resistance Prediction
Drawings
SL2-C1-01 Side Profile Drawing
SL2-C1-02A - General Arrangement
SL2-D1-01A - Hull Lines Drawing
SL2-E1-01A - Hull Construction Drawing
SL2-E1-02__04A - Hull Construction Details
SL2-E2-01__02A - Centreboard Construction Drawing
SL2-E3-01 Stem and Transom Lug Construction Details
SL2-E4-01 Wing Mounts Construction Details
SL2-F1-01A - Wing Assembly
SL2-F2-01A - Gantry Construction Drawing
SL2-F3-01A - Spreader Construction Drawing
SL2-F4-01A - Running Rigging Arrangement
SL2-F5-01__02A - Cradle Arrangement
SL2-G1-01A - Control System Arrangement
SL2-G1-02A - Control System Parts
SL2-H1-01A - Hull Jig Assembly
SL2-H1-02A - Deck Jig Assembly
SL2-H1-03A - Foredeck Jig Modification
SL2-I1-01A - Carbon Cut File (1)
SL2-I1-02A - Carbon Cut File (2)
SL2-I2-01A - MDF Cut File (1)
SL2-I2-02A - MDF Cut File (2)
SL2-I3-01A - Hull Panel Marking
SL2-I3-02A - Deck Panel Marking
Rhino Models
All models have the same zero point, so you can import (or worksession) the components into a single file.
SL2-R1-01A - Hull Construction
SL2-R1-02A - Hull Jig
SL2-R1-03A - Wings
SL2-R2-01A - Centreboard
SL2-R3-01A - Rudder
SL2-R4-01A - Control System
SL2-R5-01A - Wing Sail
SL2-R9-01A - Cradle
Thursday, October 21, 2010
Weather at Belmont

While I am loathed to average and average, the above is the average of the wind speed at the 3 closest weather stations at 9am and 3pm.
Make of it what you want.
Original spreadsheet here.
Data found here.
Labels:
belmont,
mothematics,
research,
spreadsheet,
worlds
Wednesday, October 6, 2010
Ride Your Bike
Markla and I have been doing a fair bit of mountain biking as fitness for the mothing. This weekend we're hitting the road though for a 100km charity ride from Brisbane to the Gold Coast. The forecast is fantastic, 20 knots on the nose and rain...yippee...sigh :(
And it's freakin' magpie season! How did I get talked into this?
It seems I haven't commented on the wing sail yet. What little I've seen looks like a very good implementation. Still a bit nervous/dubious about its durability but that can only be proven one way or the other over time. I hope it holds together and is a successful new addition to moth development because I can't wait to start building one...although still want to work on the transportability issue.
SLINO is back together with a couple of mods...nothing that hasn't been implemented by others previously though; a Lister lever (of some description) and a tension linkage system. We felt the tension system was easier to implement and trouble shoot than the pushrod, especially with temperamental foils. The main foil got a coat of paint and a fine wet and dry so is looking considerably better than before. If the Lister level doesn't "Chernobyl", the rudder hinge will be locked off and faired to reduce drag, maybe even get a bit of a shortening of the span. There were some annoying issues with the pocket luff material of the North sail, but that has been given a work over by the local sail maker. Also trying to get the rig right, we felt the mast was not bending correctly so have played with the spreaders, they're a fair bit closer to the mach2 geometry now.
And who is NZL 3315? It appears you've gotten a slightly out-of-place photo on the interwebs...

http://www.surtees.co.nz/home.aspx
(Not associated with this company, just found it randomly.)
And it's freakin' magpie season! How did I get talked into this?
It seems I haven't commented on the wing sail yet. What little I've seen looks like a very good implementation. Still a bit nervous/dubious about its durability but that can only be proven one way or the other over time. I hope it holds together and is a successful new addition to moth development because I can't wait to start building one...although still want to work on the transportability issue.
SLINO is back together with a couple of mods...nothing that hasn't been implemented by others previously though; a Lister lever (of some description) and a tension linkage system. We felt the tension system was easier to implement and trouble shoot than the pushrod, especially with temperamental foils. The main foil got a coat of paint and a fine wet and dry so is looking considerably better than before. If the Lister level doesn't "Chernobyl", the rudder hinge will be locked off and faired to reduce drag, maybe even get a bit of a shortening of the span. There were some annoying issues with the pocket luff material of the North sail, but that has been given a work over by the local sail maker. Also trying to get the rig right, we felt the mast was not bending correctly so have played with the spreaders, they're a fair bit closer to the mach2 geometry now.
And who is NZL 3315? It appears you've gotten a slightly out-of-place photo on the interwebs...

http://www.surtees.co.nz/home.aspx
(Not associated with this company, just found it randomly.)
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