BRUTUS MK 11

[Paul TParticipant @pault84577]

Thinking alike again.

There is a missile cassette on MK1 between the Rail Gun and the main superstructure (it looks like block of chocolate).

Whilst going through the file I came across this very early mockup demonstrating dazzle camouflage

[Bob Abell 2Participant @bobabell2]

I like this type of cammo

Will give it some thought, old chap

Considering that our model is a ship of the future, they were using this type of cammo in WW1

A case of history repeating itself?

Bob

[ashley needhamParticipant @ashleyneedham69188]

Found an interesting nugget of information regarding stealth ships the other day.

The US navy has/had a twin hull catamaran SWATH (I think it was) ship that really was very radar transparent. However when it was tested somewhere or other it was easily spotted by a powerful shore based radar. Not spotted per-se, but the radar was seeing multiple returns from the ocean surface and smack in the middle was a blow blob with no reflection whatsoever, the ship !

It is analogeous to the invisible man standing on your patio in a thunderstorm. You can’t see him but you can see the dry spot he has created by stopping the rain falling on the flagstones.

Never would have thought that absolute radar invisibility is not necessarily the way forward.

Ashley

[Bob Abell 2Participant @bobabell2]

Thanks Ashley

This will have a few people worried

Perhaps Submersibles are the ships of the future then?

Bob

[Bob Abell 2Participant @bobabell2]

Hi Paul

Just letting you know that the holes shown on your plan for the prop shafts are…..Bob on!

Just sharpened a length of 6mm steel bar and slowly ploughing through the hull floor!….Using the former holes as guidance!

Very rewarding at the moment

Photo to follow

Bob

[ashley needhamParticipant @ashleyneedham69188]

I have used the “sharpened rod” method to get long holes. I find it’s more controllable than trying to drill very long holes, as drills can wander off and they normally do it very quickly!

Ashley

[Bob Abell 2Participant @bobabell2]

Question fpr Paul

I`m setting up the rudders in the vertical plane

What can I use as a ref?,,,,,,,,,The waterline or the Axe Edge Bows or…….?

Bob

[Paul TParticipant @pault84577]

Hello Bob

Your reference point is where the waterline intersects the transom.

Paul

[Bob Abell 2Participant @bobabell2]

Thanks Paul

Here`s my method of aligning the rudder spindles…..

Measure the pitch of rudder shafts…… (with my home made callipers)

Make two strips using the rudder centre dimensions from scrap wood

Place the strips at top and bottom of shafts

They are then aligned parallel to each other

Plus a "stand well back" view to make sure etc

Progress at last

Bob

[Paul TParticipant @pault84577]

You could also check the positions of the rudder posts against the C/L of the prop shafts.

[Bob Abell 2Participant @bobabell2]

Hi Paul

Going to use the hatch lid as top bearing support for better rudder support

Will be screwing the lid on

Then add the 2050 trimmings later

Bob

[Paul TParticipant @pault84577]

Captain Bob

That is a very good idea, simple, practical and a very clever use of existing equipment.

Paul

[Bob Abell 2Participant @bobabell2]

Trial assembly of the futuristic 2050 warship rudder mech and I like it

The protruding rudder shafts could be used for animating weapons turrets etc?

Bob

[Paul TParticipant @pault84577]

Bob

How will you seal the extended rudder posts as they pass through the deck and prevent water from getting in?

Paul

[Bob Abell 2Participant @bobabell2]

Not really a problem, Paul

The rudder assemblies have an O Ring seal at the bottom

Bob

[Paul TParticipant @pault84577]

Hello Bob

I don't mean under the waterline, I am referring to where the rudder posts protrude above the deck for animating weapons turrets,

MK1 had a problem with water ingress at this point which is why the rudder access panel on MK2 is being sealed and screwed down. The problem now is that water could find its way into the compartment through these 'animation holes'.

What Kevin doesn't know is that when going in reverse this hull tends to dig in and push water over the transom and up the shallow stern, this used to cause the rudder compartment in MK1 to flood.

Paul

[ashley needhamParticipant @ashleyneedham69188]

I used a similar top support on my Oberon sub rudder shaft Bob as I only had about 3/4 inch of tube to hold the rudder shaft.

In your case though don`t you have at least a 1 1/2 inches worth of rudder tube to be getting on with and do you really need the top support? Just a bit more bracing perhaps??

Ashley

[Bob Abell 2Participant @bobabell2]

Hello Paul and Ashley

It`s not a problem chaps

All I need to do. is to glue a short length of tube on top of the cover, around the rudder shaft

And take it from there

Bob

[Paul TParticipant @pault84577]

Thats it Bob,

A simple but effective soloution, now our dear friend Kevin can understand how you will overcome the problem, but, when you reach the point some detailed construction photos will help.

Paul

[ashley needhamParticipant @ashleyneedham69188]

Would a small lip at the top of the transom be sufficient to roll water backwards when reversing? Ashley

[Bob Abell 2Participant @bobabell2]

Thank you Ashley

There are quite a few options for keeping the water out

We`ll just have to wait and see

We could use a tower block of some sort as Paul has indicated etc

Bob

[Bob Abell 2Participant @bobabell2]

Setting up the motors and prop shafts

A time consuming process.

Made several lining up jigs to help

Paul…..Can`t get anywhere near resting the motors on the hull floor, as per drawing

The 50mm props are 3mm clear of the hull and this has decided the inclination of the prop shaft

Looks OK to me

Bob

[ashley needhamParticipant @ashleyneedham69188]

Always tricky this bit. I get everything ready and lightly tack the shaft in place with superglue and motor the motor slowly with an AA battery to see if everything lines up ok.

Probably can’t use an AA battery on the 850 as it’s big?

what sort of couplings are you planning to use Bob?

Ashley

[Bob Abell 2Participant @bobabell2]

Hi Ashley

I'm using the familia red barrel UJ

Bob

[Paul TParticipant @pault84577]

Bob

If its looks ok then dont worry about it

Paul

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