Here is a list of all the postings CDSC123 has made in our forums. Click on a thread name to jump to the thread.
|Thread: Thorneycroft 67' RAF ASR - colour scheme?|
John has asked me to help here, in truth he is at least as knowledgeable about this subject as I am but I hope this helps. Firstly visit this page and download Mudway's pdfs and diagrams (register/log in first);
This is my model, scratchbuilt at 1/24th;
Some colour plates from John Pritchard and some snaps from the IWM (note varnished cabin sides);
Edited By CDSC123 on 21/10/2013 22:29:25
Edited By CDSC123 on 21/10/2013 22:40:47
|Thread: Fairmile D Type MTB|
The hulls are available in GRP as follows;
1/72nd scale £35.00
1/35th scale £75.00
1/24th scale £126.50
Edited By CDSC123 on 15/04/2013 20:31:27
|Thread: Schnellboot 1/24 Scratchbuild|
Re Lurssen effect, there are several incorrect descriptions on the www so I will quote from Harald Foch's Fast Fighting Boats;
...."is based on the flow structure in the vicinity of the propellers and behind them. By swinging out the aerofoil shaped side rudders to about 30 degrees a sudden flow breaking takes place inside the wake, and an air-filled hollow space is caused so that direction and acceleration of the water as well as the stern trimming is markedly influenced.
The following three effects are caused;
1.The rpm is lowered by some revolutions, or the power rises at constant revolutions, as a cause of the retained wake. The propeller efficiency is improved and the speed up-raised by about one knot.
2. The stern wave lifted at about 27m behind the ship is flattened and the other waves lowered remarkably.
3. The stern trim of about 2 1/2 degrees at maximum speed is removed so that the boat runs nearly horizontal.
I hope this helps, I would hazard a guess that the same effect cannot be reproduced on a scale model running in full-size water, if you see what I mean, although I'd be interested to see how you get on.
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