Plan reading

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Plan reading

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11 April 2017 at 20:26 #70608
Anthony Atkinson
Participant
@anthonyatkinson85393
hi was looking at the latest free plan but I am quite new to modelling straight from a plan and was wondering if anybody could help with any tips on reading plans particular in respect to this section

Many thanks
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11 April 2017 at 20:26 #2662
Anthony Atkinson
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@anthonyatkinson85393
11 April 2017 at 23:13 #70609
Dave Milbourn
Participant
@davemilbourn48782
If you click on this link it will take you to another model boat forum. You should look specifically for the board called Masterclasses. **LINK**

I'm not exactly sure what part of reading plans you are having problems with but the building of models from plans is very well covered by many of the threads here. I can particularly recommend anything written by MB Forum member 'Bluebird' aka John Elsy. His blogs are better than the best kit instructions you'll find anywhere.

Dave M
12 April 2017 at 08:59 #70610
Anthony Atkinson
Participant
@anthonyatkinson85393
Thanks for you comments Dave, I think I have figured it out I think my confusion was the T but I suspect that's transom but most of all why having some sections labelled say 1 1/2 why not just add more full numbered piecies and why start with number one at the back not the more logical at the front anyway thanks again for your comments.
12 April 2017 at 10:07 #70611
Dave Milbourn
Participant
@davemilbourn48782
Anthony

I don't know which plan you are having a problem with but there are certain conventions which apply to drawing scale plans of full-size vessels. One says that if each half of a hull is identical then it's a waste of paper drawing full sections. Numbering frames does not seem to have a convention although most of the drawings I have – and all of the ones I draw myself – start with #1 at the bow.
Incidentally I've never found out why model aircraft plans are usually drawn with the nose to the left while model boat plans have the bow to the right.
I guess it's all part of life's rich tapestry…

DM
12 April 2017 at 13:18 #70613
Paul T
Participant
@pault84577
Anthony

Can you copy or take a digital photo of the drawing section that is giving you problems?

If you can and then post the image onto this thread we will be able to answer your questions.

Paul
12 April 2017 at 19:26 #70614
John W E
Participant
@johnwe
DM the cheque is in the post

With regard to plans – are they the free plans from April 2017 Model Boats for the Classic 1950s Sputnik Trawler? drawn by James A Pottinger. If so, the frames are read off as this:

looking from the stern of the vessel; first frame T is transom;

the half frame is the central line of your rudder post –

frame 1 gives the position of approx. positions of the propeller boss

and they work upwards towards the bow

Nice plans, could be a future build – but – if you go over to the Mayhem Forum and seek out the build for the Trawler Sea Lady – Angel Emial- it has a similar sort of setup with the flat stern.

http://www.modelboatmayhem.co.uk/forum/index.php/topic,28028.0.html

John

Edited By bluebird on 12/04/2017 19:29:19
13 April 2017 at 07:21 #70615
David Marks 2
Participant
@davidmarks2
Regarding items such as Frames and Bulkheads being drawn showing only half of the shape. This convention is used to save drawing time (especially before the introduction of CAD) and also to emphasise that the item is symmetrical about the centre-line. The same or similar convention is normally used for handed parts i.e. where an item has a L/H and R/H variant, only one hand is drawn, but with a note to confirm that the opposite hand is also required.
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