Model Boat Mayhem

Please login or register.

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

Author Topic: 1/48 Castle class OPV  (Read 2204 times)

J.beazley

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 918
  • The building never ends
  • Location: Locks Heath, Hampshire
1/48 Castle class OPV
« on: June 21, 2020, 02:44:50 pm »

Can those with the 1/48 scale OPV Leeds castle or Dumbarton castle please let me know what your running motors and prop wise please especially Bluebird (John im hoping you have a good memory)


I currently have MFA 500 motors with 2.5:1 geared motors, m5 shafts with 3 blade brass props today in the lake during trials the motors got to the point of i couldnt touch them and burnt my finger leaving a decent blister.


I would usually run this with a pair of 800 torpedo motors as per my HMS Mersey OPV but the shafts are so flat with the bottom of the hull i dont have the option.


Let me know what you are running motor/prop wise please.


Jay
Logged
1:48th scale for my ships. Large enough to show gratuitous detail, small enough to stay married.

John W E

  • I see no ships !!
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 8,911
  • Location: South shields
Re: 1/48 Castle class OPV
« Reply #1 on: June 21, 2020, 05:49:16 pm »


hi ya Jay


Sadly, my personal Leeds Castle has now long gone.


Anyway, props - they were 5 bladers and I am sure they were something like 55 or 60 mm diameter (I think - 80 % certain).


The original motors were 600 but they were too thirsty on the old amps because I was planning on doing a 24 hour scale sail with this model originally.   So, I bought 2 (I think they were Johnson motors) 12 volt - they were low drain - they were very similar to those that you get in an electric drill (size wise) but, as I say, the amps were something like 1 amp on 12 volt free running.   I remember I had the old MFA Olympics belt drive gear boxes in.   I remember I had to open up the mounting screw holes in the plastic gear boxes - also, I had to take a little bit plastic off the bottom of the frame of the gearbox - because the motors were just a little too big to sit correctly in the gear box mountings.   I ran it on 12 volts.   As luck would have it, my computer is screaming at me saying it needs new disc space for more downloads, so I have just ditched a load of pics including Leeds Castle photos - to try and make more space.


Here is one picture of the replacement for my old Leeds Castle - which I am busy building at the moment :-)






Logged
Knowledge begins with respect
But fools hate wisdom and discipline

J.beazley

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 918
  • The building never ends
  • Location: Locks Heath, Hampshire
Re: 1/48 Castle class OPV
« Reply #2 on: June 21, 2020, 06:59:38 pm »

Super informative as usual  :-))


Many thanks for this i shall go over my running gear again and see if i can work out a way of getting the 800's in her.


Nice to see your doing another, im going with Dumbarton Castle as per my super old plans which are older than me {-)
Jay
Logged
1:48th scale for my ships. Large enough to show gratuitous detail, small enough to stay married.

John W E

  • I see no ships !!
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 8,911
  • Location: South shields
Re: 1/48 Castle class OPV
« Reply #3 on: June 21, 2020, 07:01:34 pm »


Hi Jay ,



Just having a bit think, after reading your posting again - I seem to recall having the propshafts made for me - as they were extra long - they were about 15 inch long.  I had trouble with them - keeping them from bending - it put the motors, not in the middle of the boat, but, about where the back of the bridge begins (you know where the mast and funnel are on the model) - I believe the motors were situated about there - as above them - I had the fan which was used for cooling the electrics because on the starboard side, I think, there is a big square vent in the side of the superstructure which I made form fine open mesh for access for cold air to circulate by the fan around the model.

Here's a link which is showing the internals of HMS Leeds Castle and one of the pics just shows the back end of the motors (sorry that's the best I can do at the moment) but there is a bit of information on Leeds Castle on this Forum.



https://www.modelboatmayhem.co.uk/forum/index.php/topic,7172.0.html


John
Logged
Knowledge begins with respect
But fools hate wisdom and discipline

Shipmate60

  • Global Moderator
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 5,857
  • You bark - I will bite!!!
  • Location: Fareham
Re: 1/48 Castle class OPV
« Reply #4 on: June 22, 2020, 11:05:48 am »

John,
Thanks for that old thread. So many old members on it, so many memories flooding back.


Bob
Logged
Officially a GOG.
Pages: [1]   Go Up
 

Page created in 0.02 seconds with 21 queries.