Model Boat Mayhem

Please login or register.

Login with username, password and session length.
Pages: 1 [2]   Go Down

Author Topic: what engine  (Read 9442 times)

pettyofficernick

  • Guest
Re: what engine
« Reply #25 on: June 20, 2011, 10:52:17 am »

Hi Kiwi, how do you control speed on VR1A, I believe single cylinder engines are difficult to control. or do you use single channel for rudder only, and leave the engine to get on with it?
Regards,
Nick :-))
Logged

kiwimodeller

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 622
  • Location: Waihi, New Zealand
Re: what engine
« Reply #26 on: June 21, 2011, 10:35:42 am »

I find just the opposite Nick. I have an inline throttle valve between the boiler and the engine. These days I get them from Clevedon Steam but I think the one in River Queen came from Bruce Engineering. Clevedon have just come out with a nifty new setup of lubricator and throttle all in one especially for the TVR1A. Jerry even makes left and right versions for engines assembled the usual way or engines with the cylinders reversed to put the pipes on the other side. The VR1A will slow right down to a steady tick over but of course you do not want it to stop so I set the idle with the trim on the transmitter. Although the engine has reversing gear I do not use it because of the risk of the engine stopping. I use a reversable pitch prop instead. I can have the prop in neutral and the engine idling and the boat not moving. Then I bring the revs up and put the prop in to forward or reverse and it takes off really smoothly. Cheers, Ian.
Logged

pettyofficernick

  • Guest
Re: what engine
« Reply #27 on: July 05, 2011, 11:29:51 pm »

Hi Folks, PM engine finally arrived, took 4 days to get to UK and 2 weeks clearing customs, £21 import vat, Parcelfarce also took £8 'handling charge'. It seems so unfair that you can import enough fags to start a bronchitis epidemic, and pay no duty, but a little model steam engine attracts extra duty. Anyway, moan over I am most pleased with it, and the steam fittings are excellent and all good value for money. The main casting is now painted a nice crimson, just a bit of cleaning up to do, hands are a bit shaky and painting was never one of my favorite tasks, I usually get more paint on me than on the job. I pressed the sleeve bearings in with a clamp and a couple of aluminium blocks, meant to use the boiling and freezing method, but forgot to do it before painting and didn't want to boil off my paintwork. In the absence of a 0.1875 reamer, I used a sharp, new 4.8mm drill, turned by hand as the shaft seemed to be an interference fit and needed easing, I now have a nice running fit with inly about 6 thou play (checked with a dial gauge). I have ordered some hex bolts for the throttle securing plate as when the engine goes into a boat, it will be easier to adjust with a spanner, rather than try to get in with a screwdriver. John Coleman from PM is really helpfull, and will happily answer any questions. Due to the lack of a compressed air supply, I will be running in on steam right from the start.Cant wait to get it going, I may even put it in my Victoria instead of the little SVS engine.
Cheers y'all
Nick :-)) :-)) :-))

Logged

kiwimodeller

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 622
  • Location: Waihi, New Zealand
Re: what engine
« Reply #28 on: July 06, 2011, 11:17:13 am »

Nick, if you do change engines and want to sell the SVS send me a PM. Robin at Kinston Mouldings reckons they are a good engine so I thought I would get one for a future project as I have three hulls underway at this moment. I believe they were made by Tony Green Steam Models and that his son was still operating the business so I tried emailing and then phoning but never got any reply. I see that just in the last week or two the Tony Green website has been taken down and there is just a notice saying that a new website is coming soon so maybe things will get sorted but as I say if you want to sell let me know. Thanks, Ian.
Logged

hdserv

  • Guest
Re: what engine
« Reply #29 on: July 12, 2011, 09:01:03 pm »

I ran my pm engine in on compressed air and ran it on steam for the first time today using on ran very well
Logged

pettyofficernick

  • Guest
Re: what engine
« Reply #30 on: July 13, 2011, 01:02:01 am »

I tried mine on compressed ait, and it would not work at all, I then connected it to a boiler at 40psi and it went like the clappers, it seems to be quite a powerfull engine. I am now deciding what to do with it, another launch, a tug, or a 50ft picket boat/admirals barge? :-)) :-)) :-))
Logged
Pages: 1 [2]   Go Up
 

Page created in 0.152 seconds with 18 queries.