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34" Vosper RAF Crash Rescue Tender - Aerokits model
It must have been in the early '70's when my father and brothers built this model. It had a car blower motor, a home made server to steer (see picture), and my eldest brother built the RC system. We had fun on many boating lakes on holidays in North Wales, and I've decided to refurbish her, and get her on the water again. She was named "Endeavour", as my mother said it took a lot of endeavour to build her! I think I'm going to fit the missing chine and gunwale stringers and repaint her as a Fireboat - of some sorts!
I'd like to go modern with the RC, motor (brushless?) and metal geared servo.
Any advice - particularly on motor sizing would be appreciated. I saw a similar Fireboat on the water at Southport Model Boat Club open day recently, with an 850 motor, which seemed to sail very nicely
Back in the Groove
5 years ago
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๐ Fittings for Aerokits RAF tender
4 years ago by
๐ฌ๐ง Back in the Groove (
Leading Seaman)
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I have a plan from the Aerokits/Keil-Kraft kit we built with our father many years ago. I'm restoring it too, and thought the plan may help you?
Good Luck with your project
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๐ Propshaft replacement?
5 years ago by
๐ฌ๐ง Back in the Groove (
Leading Seaman)
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Thanks Martin555. I have a hot air paint stripper I thought could do the job
Bill
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๐ฌ Re: 34" Vosper RAF Crash Rescue Tender - Aerokits model
5 years ago by
๐ฌ๐ง Back in the Groove (
Leading Seaman)
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Graham93,
That plan looks exactly like the one I have - only mine is much more yellow! I have 2 other documents - the Building Instructions and "Constructional Details"
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๐ Float Test!
5 years ago by
๐ฌ๐ง Back in the Groove (
Leading Seaman)
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So having stripped out all the old equipment - see image of home made rudder servo! - I decided to check for leaks. I used some soup cans for ballast, and after around 45 mins found some water coming up the old 3/16" x 9" prop shaft.
Having asked advice on the forum, I need a new 5mm prop shaft, but will wait until I have the motor, before ordering one. I may need a different length, and now I know I'm opening the hull, I may as well fit a new metric rudder and tube too ๐ค
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๐ Propshaft replacement?
5 years ago by
๐ฌ๐ง Back in the Groove (
Leading Seaman)
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Thanks Everyone - I will need to change the entire prop shaft, as it is less than 5mm internal diameter anyway, and seems solid brass. I plan to install a new 5mm unit.
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๐ Propshaft replacement?
5 years ago by
๐ฌ๐ง Back in the Groove (
Leading Seaman)
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Good idea - Thanks!
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๐ Propshaft replacement?
5 years ago by
๐ฌ๐ง Back in the Groove (
Leading Seaman)
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Iโm refurbishing a 34โ Vosper Fireboat, and as Iโm stripping it, have found the propshaft outlet brass โbushโ to be slightly worn. Itโs a 9โ brass tube, with a 3/16โ (4.6mm) x 10โ inner shaft. The outlet bush is worn to 5mm, and the input to 4.8mm. Iโm looking for some advice please. Should I just grease it up, and carry on; ream each bush out to 5 mm, and replace the inner shaft; replace with a completely new 5mm propshaft? If replace the entire shaft, how do you remove one without damaging a wooden hull? Thanks in anticipation! Bill
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๐ฌ Re: 34" Vosper RAF Crash Rescue Tender - Aerokits model
5 years ago by
๐ฌ๐ง Back in the Groove (
Leading Seaman)
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Thanks Elsrickle - really helpful to understand all factors affecting performance
Bill
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๐ฌ Re: 34" Vosper RAF Crash Rescue Tender - Aerokits model
5 years ago by
๐ฌ๐ง Back in the Groove (
Leading Seaman)
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Hi, I think found a post from you around a year ago re a 46โ Vosper model, where you said your boat was โa bit fast at 11vโ. Is your boat noisy relative to others?
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๐ฌ Re: 34" Vosper RAF Crash Rescue Tender - Aerokits model
5 years ago by
๐ฌ๐ง Back in the Groove (
Leading Seaman)
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Thanks Elsrickle. I think you may have the 42" 12th scale model? I only have one motor, and yours seem to be very powerful. I'm hoping not to have any leaks, but am now wondering if my rudder and prop tube will be leaky - Maybe I do a test in the bath!!๐
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๐ฌ Re: 34" Vosper RAF Crash Rescue Tender - Aerokits model
5 years ago by
๐ฌ๐ง Back in the Groove (
Leading Seaman)
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Hi Martin555, Graupner told me to ask a supplier in the UK, or at a Model Boat Club - fair enough, but there are so many different opinions!! - 600 or 850 brushless being the most common. M-troniks recommended their G2 Hydra50, which I quite like the idea of, as they are UK based, and "waterproof". I'll do some comparisons of similar 1400kv motors, but as a beginner, I think it makes sense to use a "matched" system?
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๐ฌ Re: 34" Vosper RAF Crash Rescue Tender - Aerokits model
5 years ago by
๐ฌ๐ง Back in the Groove (
Leading Seaman)
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Hi Martin555,
Many Thanks for this - I'd not seen that post. I've actually written to Graupner and Mtroniks today to ask for a recommendation, so will see what I get back. It does seem to be a dark art for the inexperienced though!
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๐ฌ Re: 34" Vosper RAF Crash Rescue Tender - Aerokits model
5 years ago by
๐ฌ๐ง Back in the Groove (
Leading Seaman)
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Yes Peter, It's an Aerokits model - I still have the original intructions - distributor was KeilKraft. Scale drawing says 3/4" to 1'. Original boat was 46ft. I think that must be 1/16 scale? Model is 34 and a bit inches long
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๐ฌ Re: 34" Vosper RAF Crash Rescue Tender - Aerokits model
5 years ago by
๐ฌ๐ง Back in the Groove (
Leading Seaman)
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Thanks Graham93, I saw your pictures๐ - How did you decide what size motor to use? I do intend to fit the missing stringers. I can't remember why they weren't fitted - it's a good while ago now ๐
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๐ฌ Re: 34" Vosper RAF Crash Rescue Tender - Aerokits model
5 years ago by
๐ฌ๐ง Back in the Groove (
Leading Seaman)
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Thank you. I've started to look at other blogs, to help me decide how far to go with this one. I'm hoping to do the refurb over the winter, and install the new motor/servo and electronics, then remove, so I can do a better job on the inside, before doing the repair and repaint
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๐ 34" Vosper RAF Crash Rescue Tender - Aerokits model
5 years ago by
๐ฌ๐ง Back in the Groove (
Leading Seaman)
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It must have been in the early '70's when my father and brothers built this model. It had a car blower motor, a home made server to steer (see picture), and my eldest brother built the RC system. We had fun on many boating lakes on holidays in North Wales, and I've decided to refurbish her, and get her on the water again. She was named "Endeavour", as my mother said it took a lot of endeavour to build her! I think I'm going to fit the missing chine and gunwale stringers and repaint her as a Fireboat - of some sorts!
I'd like to go modern with the RC, motor (brushless?) and metal geared servo.
Any advice - particularly on motor sizing would be appreciated. I saw a similar Fireboat on the water at Southport Model Boat Club open day recently, with an 850 motor, which seemed to sail very nicely
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