Model Boat Mayhem - Forum

Technical, Techniques, Hints, and Tips => The "Black Arts!" ( Electrics & Electronics ) => Topic started by: rem2007 on September 29, 2007, 11:50:13 AM

Title: RNLI Lifeboat/RC gear
Post by: rem2007 on September 29, 2007, 11:50:13 AM
Hi everyone,
Am new to this forum and have a couple of builds on the go. The One I would like to get in the pond first is the 1/72 RNLI Lifeboat by Airfix. Am looking for ideas for  the propulsion system and rudder/servos required. I did say I was newbie didn't I.
Have sealed the hull and pluged the bowthruster and rudder  holes with blutack and she floats fine, I am thinking not to bother with a bow thruster, as this is my first rc attempt and they look kind of pricy, I will probably just fill and smooth their holes over.
So if anyone could help it would be appreciated.
Robert
Title: Re: RNLI Lifeboat/RC gear
Post by: riggers24 on September 29, 2007, 01:30:22 PM
Have a word with Dave Milbourn of ACTion for the small pico ESC, motors, small servo, Hitec feather RX. He produces the small electronics that go in to the modelslipway range of 1/72 models. For power have a word with John Poll of modelpower.  O0

Have a look in the traders directory for the web addresses.

Have a look here for some ideas  http://www.mikromodell.de/index_e.html

Hope this helps

Riggers ;D
Title: Re: RNLI Lifeboat/RC gear
Post by: malcolmfrary on September 29, 2007, 02:53:06 PM
Before getting too far in I would do a test float of the hull to see just what it can carry as I suspect it will be a bit near the limits.  It would probably wind up being loaded a bit deep with RC and batteries, but it saves a lot of wasted effort being sure that it will float upright.
Title: Re: RNLI Lifeboat/RC gear
Post by: riggers24 on September 29, 2007, 10:14:06 PM
Looking at what can be fitted in to a plastic fantasic, thats why I posted the website. In 2004 when I visited Ellesmere Port show there was the pool for the small plastic kits. So if a little bit of research is done I can not see why it can not be done.

Title: Re: RNLI Lifeboat/RC gear
Post by: rem2007 on September 29, 2007, 11:23:40 PM
thank you all for your suggestions, I shall follow up and keep you posted
cheers
robert
Title: Re: RNLI Lifeboat/RC gear
Post by: riggers24 on September 30, 2007, 08:21:59 AM
You will have to tell us if you go ahead with the model

Riggers
Title: Re: RNLI Lifeboat/RC gear
Post by: 17-21 on October 01, 2007, 08:17:10 AM
weight is going to be the main problem, the motors I was going to use where from servos and run it like a tank and not fit a rudder servo, the next problem with that is using 2 esc the micro ones from Mtronics adds more weight, then batteries I was thinking of using a Lipo as they are very light and a 4.8 volts are not expensive.

17-21

Lifeboat Phil.
Title: Re: RNLI Lifeboat/RC gear
Post by: rem2007 on October 01, 2007, 07:31:08 PM
I've got got ACTion looking into designing a solution to the weight problem and the servo mechanism has been causing me concern as well. have you built the airfix kit and put her in the water?
robert
Title: Re: RNLI Lifeboat/RC gear
Post by: Shipmate60 on October 01, 2007, 08:25:44 PM
You can strip a servo and use this for motive power and speed control, there used to be a description on the deans Website.

Bob
Title: Re: RNLI Lifeboat/RC gear
Post by: funtimefrankie on October 01, 2007, 09:14:10 PM
You can strip a servo and use this for motive power and speed control, there used to be a description on the deans Website.

Bob
Article on this in the current Marine Modelling International magazine
Title: Re: RNLI Lifeboat/RC gear
Post by: Tralee on October 27, 2007, 07:27:05 PM
An feature of this conversion was published in the Model Boat Magazine 100 kit Special Edition about 12 months ago
If you can send me your email address I will send you the article
Title: Re: RNLI Lifeboat/RC gear
Post by: rem2007 on October 28, 2007, 10:28:53 PM
hi tralee,
sent you emaiil via pm, will see dave at warwick for rc gear, build going well, but kind of a faffy kit for its size.....
anyway will post pics when superstructure fitted
robert
Title: Re: RNLI Lifeboat/RC gear
Post by: J.beazley on October 29, 2007, 07:44:21 AM
Not sure if this helps but here is my thread on how i converted my Impact baby severn

Stripped down servos woud be the best idea i think and run the whole set-up on 4.8v aaa battery pack

Jay
Title: Re: RNLI Lifeboat/RC gear
Post by: DickyD on October 29, 2007, 09:37:51 AM
Not sure if this helps but here is my thread on how i converted my Impact baby severn

Stripped down servos woud be the best idea i think and run the whole set-up on 4.8v aaa battery pack

Jay
Wheres your thread Jay ?
Title: Re: RNLI Lifeboat/RC gear
Post by: J.beazley on October 29, 2007, 01:39:55 PM
http://www.modelboatmayhem.co.uk/forum/index.php?topic=1879.0

well spotted Richard  :D
Title: Re: RNLI Lifeboat/RC gear
Post by: rem2007 on October 29, 2007, 07:17:45 PM
I saw the thread Jay, thanks for that good ideas for my running gear layout, too bad you didn't have a go at the Airfix kit, quite fun, expletive deletd, but this is my start in rc boats and first build since I was a young canuck in a frozen wasteland. So, I think I'll stay with the dealers I have been liasing with at Warwick.
Cheers,
Robert