Tancook whaler

[Dave_PParticipant @dave_p]

Very nice indeed Amy, not to mention the stern

[Ian GardnerParticipant @iangardner62867]

Amy,

Full size boat builder and designer as well! The sharpie looks great. I built a couple of boats designed by Paul Fisher (Selway-Fisher) years ago but haven't sailed for a couple of years now and I was always more of a picnic sailor- nothing too hazardous or hair-raising! Sounds as though you are a very adventurous type.

You have got me interested in the idea of an Egret again now- I think 4 foot would make a better model and it would definitely have a fin and bulb- I might dig out the drawings I did again and yes it would have to be light- I imagine light ply frames with balsa planking sheathed in epoxy and light cloth! Trouble is, I already have too many projects on the go.

Thanks for the info regarding the weight of your whaler.

Do you design with pencil and paper or on a computer? I used to use a thing called Plyboats- my electric launch , Wild Rose, was designed using it.

Anyway. all very interesting and thanks for sharing with us.

Ian

 

Edited By Ian Gardner on 31/10/2013 16:53:09

[ashley needhamParticipant @ashleyneedham69188]

I was trying not to mention Amy`s stern, but now it has been mentioned…

Sailing is not my forte (at least in model terms, but I did hold a RYA tidal sailing qualification a long time ago) and all these technical terms has me reaching (pun) for my "Boys own guide to sailing craft".

My only foray into sailing has been the Herald, and I must say that as soon as I had cut the dowel for the mast i stood there for a long while wondering what to do next…

I will stick to "very nice" as a compliment so as not to expose my limited knowledge in this area.

Ashley

[Amy jane SeptemberParticipant @amyjaneseptember49770]

Thank you Ashley, Dave,"very nice" will do nicely…

Not so very adventurous these days, Ian. Having a family makes you re- evaluate risk taking (pre hubby and kids, I used to do a lot of recreational rowing, Open boat ,tent and kit, 3 or 4 days at a time,. I used to think nothing of being 4 or 5 miles off shore.)

My design process normally begins with a block of wood, carved to a half model, then card board patterns taken off it for the ply panels, and the model put to the saw for the sections. The boat is then built , and if the results are good, plans drawn! (I shall check out plyboat though) I have done a couple of round bilge yacht designs on paper, through to table of off sets stage, one was built , by a friend, as a model, and worked out well. I feel that starting from a half model results in a better design though.

I think that you will be pleasantly suprised by how well the egret will sail, and 4' would be a nice size for her. (oh to have the time to bring all our ideas into being…)

Edited By Amy jane September on 01/11/2013 20:28:43

Edited By Amy jane September on 01/11/2013 20:37:02

[Ian GardnerParticipant @iangardner62867]

Hi Amy,

I think you would find Plyboats a bit old fashioned (even if it's still available) and it's a DOS based program. You might be interested in a program called HULLS which is a free thing designed by Greg Carlson- I'll try a link below. You can design up to nine chines (which is practically round bilge) and then put it into a Cad program to do things like the superstructure. It allows you to design at any size and to design to a given displacement. I've designed loads of boats but, ironically, never built one from this program. I'm sure you'd make sense of it and find it fun.

You've really got me thinking about Egret again and the displacement of the Wooden Boat drawing at 4' would be about 12lb- 12'' beam. The sail area would be something just north of 600 sq ins which, as you say, does seem a bit light. It is a nice simple rig though. This of course is all disastrous as I can't afford, sensibly, to start another project, but, as my wife often says, it's a hobby and you can do what you want! Can't hurt to get the drawings enlarged can it?

My boat designer friend started by making half models and taking card patterns- it's how it used to be done, after all and I agree that you would get a better feel of what you were designing.

Very interesting to hear of your boating exploits. My wife and I tried a bit of dinghy camping a few years ago but I think we left it a bit late in life! This was after the children had grown and left and it just made us feel- well, old!!

**LINK**

Hope the link works.

Regards,

Ian

[Amy jane SeptemberParticipant @amyjaneseptember49770]

Thanks for the link, Ian. Down loaded fine. I shall enjoy exploring it! Certainly looks like it will take a lot of the donkey work out of the various calculations.

Anticipating a new model, chewing it over and building it in your mind's eye is almost as much fun as actually doing it! ( and a lot cheaper and less messy too). There is an excellent book, called "The Sharpie Book", I dont recall the author off hand, but can look it up for you. It has a bit about the egret in it plus some of Munroe's writtings. I would be happy to send you a pdf of the relevant bits , if you wish.

I find that even at my tender age, (early 30's) that camping in small boats is hard on the joints!

Thanks again

Amy jane

[Ian GardnerParticipant @iangardner62867]

Glad you got Hulls OK. The book you refer to is by Ruel Parker I believe and I was reading it over my morning tea! He has re-worked the Egret and has a table of offsets. It's slightly different from the Wooden Boat design. As you can tell I've got it bad with Egret and (whisper) I may have a go. It's hard to believe such an elegant hull could be built on such simple lines and I love the rig. The sprit booms are of almost equal length which would make control easy and no standing rigging- so just plug the masts in at the waters edge. The only difficulty I can see is an open cockpit, but I suspect with a foot beam it wouldn't be a problem in reality.

I was relating our conversation to my wife and she said she was glad we did the dinghy camping we did as it provided such happy memories- I just found the amount of gear one seemed to need unmanageable- I expect we would have streamlined it if we'd gone on. We used a 16' yawl- quite a heavy boat and again I supect something lighter would have been more suitable. I'll post a photo at some stage just out of interest, but I suspect this has gone way off model boats and also hi-jacked your Tancook Whaler thread!

Ian

[Amy jane SeptemberParticipant @amyjaneseptember49770]

Yes, Ruel Parker. Good little book that, some great photos. I think Parker's re work would be a little faster than Munroe's, I haven't looked at it for a while but would expect Parker's to have a little less rocker and slightly lighter displacement, due to being plywood. Have been tempted to build it full size in the past, though Parker's construction method is a bit rich for my pocket! As for the open cockpit, she has good flare and should be reasonably dry.

Would like to see your yawl, I agree about the amount of gear on board, never enough room! I would normally camp on the beach at night. ( my 18' row boat was just light enough, unloaded, to crab up the beach, by swinging up one end at a time. even so ,I always tried to arrive and leave on the top of the tide.) And yes, Your wife is right, precious memories, nothing like slipping along on a moonless night, stars over head and the wake lit up to match!

[Amy jane SeptemberParticipant @amyjaneseptember49770]

Hello again

For those who are interested, here are the models vital stats.

length between perps 44"

length over all 49"

waterline length 37"

beam 10 3/4"

freeboard mid ships 2 1/4"

draft 10 5/8"

sail areas

Jib 125 sq "

Fore 288

main 410

displacement 10lb

ballest 6lb

[Amy jane SeptemberParticipant @amyjaneseptember49770]

Hello All

I had a lovely sail with this boat the other day. as you will know, when I built her, I used the radio from a toy car. The main sheet winch was a worm drive gear box from an old venetian blind, driven by the toy cars drive motor which could operate in forward and reverse via the transmitter. When I upgraded to a proper radio I could no longer use this set up. I tried using extended servo arms for the sheet, but they didn't give enough travel. In the end I hit on an Idea that worked well, and may be (or not) of use to others.

By opening up a servo and disconnecting the out put wheel gear from the pot, and gluing the pot in central position, the servo can be made to revolve continuously in either direction at a speed proportional to how far you put the transmitter stick over. Reassemble and put a drum on top and you have a perfectly functional servo winch. I used an old standard servo for the fores'l, which gave a pull of around 4 pounds, and a high torque metal geared one, (cost a mere $12 new) for the main, that gave a 10 lb pull!

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