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Axe Head ship of the future

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Bob Abell06/06/2020 17:42:02
8899 forum posts
2781 photos

Tracing the keel onto the plywood is a bit tricky

The keel is shown in two pieces and on different sheets

The solution is to refer to the drawing border, to line up the two pieces

See photo....I`ve cut the border off the LH sheet

ie.... The drawing borders need to be parallel


joint info.jpg

Paul T06/06/2020 18:41:30
7140 forum posts
1204 photos
2 articles

Captain Bob

Putting the rudder in a forward location does have some design merit as it can help with manoeuvrability however the downside is that rudders are most effective when positioned behind the propellers.


Ray Wood 206/06/2020 19:07:49
1979 forum posts
705 photos

Hi All,

A rudder anywhere near the sharp end will act as a brake, the flatter hull at the stern is much easier for a rudder to push sideways ??

Regards Ray

Bob Abell07/06/2020 08:32:53
8899 forum posts
2781 photos

Here's an interesting thought, chaps

Imagine one rudder between twin props, with the rudder blade being extra long, so that a single prop could act on the blade

What would be the effect?

One prop would steer the craft and the other prop would drive the craft forward

Just a thought


Ray Wood 207/06/2020 09:02:32
1979 forum posts
705 photos

Hi Bob,

How about the other way round ? 1 prop & 2 rudders 😎

My new toy, I just sit looking at it !! Scary or what 😯

Regards Rayimg_20200607_085623.jpg

Bob Abell07/06/2020 09:59:16
8899 forum posts
2781 photos

Hi Ray...…...You`ve taken the plunge into the inknown there, old chap!

It will still work, but with reservations

Have you tried it out yet?

It is the reverse of what I hinted about, especially should the rudders have extensions on the inside to be more effective with the prop

Keep us informed


Bob Abell07/06/2020 10:06:59
8899 forum posts
2781 photos

What I was saying about the borders being parallel, hasn`t worked out?

See below...…..

The two pieces are easy to match up anyway...….No harm done


keel 2.jpg

keel 1.jpg

Bob Abell07/06/2020 11:16:57
8899 forum posts
2781 photos

Having no suitable plywood, the keel is being made up from, two outer layers of 1/8 " hardboard and one central core of 1/8" plywood off a composite material...….Very stiff and strong...….Hopefully

This is what makes the build at the moment more interesting...…..Scratching about for suitable materials!


keel 3.jpg

Chris Fellows07/06/2020 13:10:51
695 forum posts
405 photos

Ashley will be happy at the use of hardboard! smiley


Edited By Chris Fellows on 07/06/2020 13:11:17

Bob Abell07/06/2020 13:14:33
8899 forum posts
2781 photos

Thanks Chris

Hardboard can be a life saver at times.....Especially....This time!


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