raf crash tender

Started by terry955
16 replies 0 likes 0 followers Last activity: 17 years ago
#17

raf crash tender

HI Terry 955.
You may like to try John Goodall,www.bamopro.co.uk, tel 01283 713715, he deals in older and vintage engines and may be able to help with the parts you require.
Regards Pete D.
#16

raf crash tender

The engine in my boat is a ED sea otter 3.5cc and I'm hoping someone can tell me were I can locate a needle jet assembly. Mine has been broken in the many house moves since the build was started in the 60's
#15

Fireboat Decals

Can anybody tell me where I can get a set of decals (transfers) for my fireboat? I particularly need a transfer for the word "FIRE"

Looking forward to hearing from you!

David Phelan


[Westbourne models do a full set]
#14

Fireboat Decals

I didn't know you could get these! I made a stencil out of masking tape and actually painted the letters on. it looks pretty good.
#11

Fireboat Decals

Can anybody tell me where I can get a set of decals (transfers) for my fireboat? I particularly need a transfer for the word "FIRE"

Looking forward to hearing from you!

David Phelan
#10

MOTOR

Dont go backwards to much and hopefully you wont get to much water in there 🚤
#9

MOTOR

apparently not! 😀 (there where no instructions on it at the time), so why did it turn better 😯 !!!!!!!
#8

MOTOR

Mr Devllin is that rudder the right way around ?

Peter
#7

MOTOR

Eltham here is a pic of what really is the easiest way to mount the prop shaft tube. You just need to make a bracket to hold it as shown, then inside the hull a hole in a bulkead to support the top of the tube, or make a bracket.Drill the hole through the hull, but you have to take care its lined up with the motor correctly. I assume you know you will need a plastic universal joint between the motor and shaft, as you will not line it up perfectly, and the UJ will compensate for this.

THe shaft rotates inside the tube, as as HS93 says, there is a bush either end to stop the water getting in. The inner shaft does however need to be lubricated, a few drops of oil, some people use grease forced in the tube, ( with a syringe etc)to lubricate and seal, I originally did this, but as mine is a fast boat the grease soon emulsified and turned to a horrible mush!If you dont lubricate it will overheat and seize up.

When the tube is in the position you want, use epoxy resin (you can get it from halfords) to set and seal the hole in the hull, and keep the tube located in place. 😛
#6

MOTOR

Hi: Elthamcollege.Sorry if I may have understood you,if you are worried about water getting up the tubes,and not as I thought were you are joining the tubes to the hull.
The scart plugs I used are the small version IE:10mm dia cable scart to scart,with screw ends .
It all depends on what type of boat hull you are going to build,and the angle of the stern for the prop/tubes.
You have to cut the angles to fit.The screw ends then tighten on the tubes.I have included a drawing of the scart plug.
Hi: peter,no I have glued the tubes into the hull bottom,and to the bulkhead .(Sorry with apoxy).
The scart plugs are to help stabilize the tubes and cut down on vibration due to cavitation by the two motors.Plus they give me a better anchor point for the tubes.and it looks better than tubes sticking out of the bottom when on display.
gerry
#5

MOTOR

elthamcollege I think you are talking about the prop shaft , most have a bush at each end and that stops the water, if you are just using a tube that is a close fit to the shaft that normally stops the water if you could give a bit more info or a picture of what you are trying to do , have a look on the blogs they may give you some ideas, as for fitting the outer tube epoxy is normally used and works for most people, you do not want lumps under the waterline stop the flow of water to the propeler..

Gerry have you used that so you can remove the complete shaft and tube?? as they need to be held tight as the motor will soon have it out of alignment and I cannot see it sealing on the hull as you would have to glue that in so why not just glue the tube in,

Peter
#4

MOTOR

thanks Gerry,

but firstly, what type of scart cable did you use, and how did you get the propeller shaft to go through but also tighten it as there are no bolts.

😟
#3

MOTOR

Hi: I don't know if it helps,but I think you may mean the propshafts.I mounted mine on the (vigilant star) and filled the gaps with araldite,and a little trick I used was to support them on the stern of the boat,was to use the ends of a scart leadand araldite them in place.After aliqnment of the shafts,you can tighten up the scart ends on the shafts and they fit them perfectly,IE no leaks.
This works great and is a cheap way of doing it for a first time boat build like me.
gerry.
#2

MOTOR

hi,
i'm new to boat building and I am building on for a school project, I have a dilemma. I want to put to motors inside the boat to drive it, but I am worried about water getting in as there may be a gap where the axel spins.
Any help would be much appreciated 😛 😟
#1

raf crash tender

hi,
i'm new to boat building and I am building on for a school project, I have a dilemma. I want to put to motors Inside the boat to drive It, but I am worried about water getting In as there may be a gap where the axel spins.
Any help would be much appreciated 😛 😟

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