Model Boat Mayhem

Please login or register.

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

Author Topic: Has anyone built a Sirmar HDML?  (Read 2534 times)

kendalboatsman

  • Guest
Has anyone built a Sirmar HDML?
« on: July 01, 2007, 06:31:21 pm »

Evening All,

I am getting on reasonably well with my Sirmar HDML now I have sorted the twist out but I am still unsure on Motors. I have two como 280? size motors, are these OK or should I use something smaller. Also what batteries are best as obviously a Sealed Lead Acid will sink it ???

Sub C nicads and Nimh cells seem too big for it as well. I have noticed Li Poly mentioned a few times on here, what sort of duration would I get and do I need a special charger? Electronics wise I will be ordering two Pico ESCs and a mixer from our very own FLJ (ACTion) in a weeks time.

Any help or photos of an internal layout would be a great help.

Regards
Clive :)
Logged

PSSHIPS

  • Guest
Re: Has anyone built a Sirmar HDML?
« Reply #1 on: July 01, 2007, 07:37:44 pm »

Hi Clive there was a guy in Belgium I think who used 280s and made the model sail in weather also.

 It is only a small model, "V small" I wouldn't personally build one that small, but, we inherited it. You say it was twisted, How long have you had it before you started work on it matey?

 If it is yellowish/ brownish inside it is not one of our new ones. They are all white and we havn't had a twisted hull of any type yet from our new glasser's.

 Paul...
Logged

kendalboatsman

  • Guest
Re: Has anyone built a Sirmar HDML?
« Reply #2 on: July 01, 2007, 10:35:47 pm »

Hi Paul,

This is an old hull and it arrived like that. I didn't bother you with it as it wasn't one of yours. I purchased it about 5/6 years ago from a Sirmar stockist. The twist was along its length but I sorted it by building in ribs and using stringers to straighten it :)

Just dragged the motors out and they aren't 280 class, they are smaller Mabuchi motors about 1" in diameter and about 40mm long (1 1/2"). Should be OK i hope. Have you any suggestions on electrical supply? I wondered about making up a 7.2v pack in two sticks of 3 and placing each side of the hull. Any idea what the models displacement is?

Another question, should the deck be fitted onto the FG hull or recessed flush with the top of the hull?

And the best bit, I paid too much attention to the actual scale than the dimensions and was rather surprised when this diddy hull arrived in the post. I was expecting something about 3 ft long. ;D DOH!!! Anyway I had paid for it so it got put back in its packaging and put away. And now 5 years on I have a workshop of sorts (bench in the loft and a new shed on the way) so I have made a start. I have scratchbuilt before and had a go at kits (some instructions are interestingly vague) but this is my first semi kit and I find that now I have made a start I am enjoying it. This is the first time I used a fibre glass hull that wasn't in a kit and it was daunting at first but once I started cutting the nerves have gone.

I have another of your semi kits awaiting my attention and that is the TID tug this one is 6/7 years old and has been waiting patiently for me to make a start on it.

Feeling brave enough to tackle a warship next year preferably WW2. Unless you have a HMS Antelope (Falklands Era) in the offing by then.

Clive
Logged

PSSHIPS

  • Guest
Re: Has anyone built a Sirmar HDML?
« Reply #3 on: July 01, 2007, 10:53:51 pm »

Hi Clive, recess the deck mate, it should be ok.
 Antelope? We do Active, same thing.
 I have just seen your PM, I will PM ya back in a mo!
Logged

longshanks

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 691
Re: Has anyone built a Sirmar HDML?
« Reply #4 on: July 08, 2007, 10:42:07 pm »

Hi Clive,

You were asking about the scale displacement of HDML.

The info I have gives full size displacement as 46tons, deep load 54tons

I belive the Sirmar is 1/48 scale (18" long)

Scale disp = (54x2240) / (48x48x48)=1.09ilbs or 17.4ozs

Doesnt seem alot, wonder if model was built with a deeper hull?

Hope this is some help

Cheers Kevin
Logged
Pages: [1]   Go Up
 

Page created in 0.556 seconds with 18 queries.