Model Boat Mayhem

Dry Dock / Shipyard: Builds & Questions => Springer Tugs => Topic started by: bfgstew on November 12, 2017, 12:55:13 PM

Title: New Springer........
Post by: bfgstew on November 12, 2017, 12:55:13 PM
Well I have  cracked on with my new springer, not bothered with pics from the start as it is a very standard build.......until now.
I am not going to tell you what it will end up being or anything else, as it is top secret, plus it may not work. Don't worry though, as soon as I can update, I will.........I really hope this works and looks as good when it is finished as it does in my head.



Title: Re: New Springer.........???????
Post by: SailorGreg on November 12, 2017, 01:08:55 PM
Given the colour scheme, my money is on a war-springer. But armed with what, that is the question!
Title: Re: New Springer.........???????
Post by: bfgstew on November 12, 2017, 03:13:32 PM
It's what IT SHOULD be armed with is a clue........ :-))


Should have an update later today if my planning comes together, as building from the back of a fag packet so to speak!
Title: Re: New Springer.........???????
Post by: Netleyned on November 12, 2017, 03:29:52 PM
Players Airman
Or
Senior Service {-)
Ned
Title: Re: New Springer.........???????
Post by: Tug Fanatic on November 12, 2017, 04:06:26 PM
The coaming sure allows for a large superstructure. Watching. An aircraft carrier that should have aircraft? - well apart from our two they normally do.
Title: Re: New Springer.........???????
Post by: bfgstew on November 12, 2017, 05:19:30 PM
The coaming sure allows for a large superstructure. Watching. An aircraft carrier that should have aircraft? - well apart from our two they normally do.


You lot are to good.


Either the big E, or Tin Lizzie...........or both?
Title: Re: New Springer.........???????
Post by: bfgstew on November 12, 2017, 07:39:17 PM
The flight deck built and glued together, fit edging strips next, then the 2 islands. Should be fun.......I may go for the slight oversize look, not sure yet?



Title: Re: New Springer.........???????
Post by: jarvo on November 12, 2017, 10:48:05 PM
Dear God, with that much power available she won't need aircraft to fly!!!!!


Mind you our new carriers haven't got any aircraft any way


Mark
Title: Re: New Springer.........???????
Post by: bfgstew on November 12, 2017, 11:03:53 PM
Wait until you see the propulsion set up...................... O0 O0 O0
Title: Re: New Springer.........???????
Post by: bfgstew on November 13, 2017, 06:44:21 PM
Propulsion system, going to fit my thruster pod in it, will run off 6V rather than 12V, don't it to be the first submersible aircraft carrier......... :embarrassed:



Title: Re: New Springer.........???????
Post by: bfgstew on November 13, 2017, 10:05:43 PM
Thruster pod in position, waiting for rubber sleeves.
Rudder arrived, now need to modify the blade.
Servo and a pair of 6V batteries next on shopping list.
Then need to find some small (3" long ish), sea harrier models which should be on this vessel.



Title: Re: New Springer.........???????
Post by: radiojoe on November 14, 2017, 11:38:52 AM

Love the propulsion drive idea, a bit like a Seadoo, nice one,  Revell do a 1:144 scale Harrier should be close to the size you want.  :-))


Joe
Title: Re: New Springer.........???????
Post by: Starspider on November 14, 2017, 11:46:16 PM
Nice drive system you'll be able to tip the harriers off the bow all I keep seeing is a Shanon doing a crash stop lol
Title: Re: New Springer.........???????
Post by: bfgstew on November 15, 2017, 11:29:25 AM
Ok, did first bath tub test to check for any leaks, all good. Then ballasting, took 2.5kg to get to the water line, which has "xxxxx" me as I was wanting to use 2 x 6v 14ah sla batteries, trouble is these are 2.1kg each, so a total of 4.2kg.......damn.
I rather not use LiPo batteries as they need a lot of care and attention for safety reasons. Is there a better solution? Motor is a Leopard 800kv inrunner.
Look forward to suggestions.
Stewart
Title: Re: New Springer.........???????
Post by: bfgstew on November 16, 2017, 01:48:40 PM
Decided to use 2 x 4.5ah sla batteries instead for time being, see what run time I get off them.
Title: Re: New Springer.........???????
Post by: radiojoe on November 16, 2017, 02:16:56 PM
I've got two 12 volt 1.2 ah in mine with a 540 motor it runs for hours,  ok2


Joe.
Title: Re: New Springer.........???????
Post by: bfgstew on November 16, 2017, 02:24:10 PM
Wow, that's good Joe.
Not sure how power hungry the brushless motor is going to be?
Gonna be fun finding out though...... :-))
Title: Re: New Springer.........???????
Post by: bfgstew on November 18, 2017, 09:43:37 PM
A question guys. I would like a servo that has 180 degree rotation for steering, for the life of me I cannot find one. Nothing fancy oe expensive.


Stewart
Title: Re: New Springer.........???????
Post by: radiojoe on November 18, 2017, 10:34:20 PM
Hi Stewart     Hitec HS 77 BB 180 retract servo.  19.99   if it helps.

Joe.



Title: Re: New Springer.........???????
Post by: JimG on November 19, 2017, 09:52:56 AM
Hi Stewart     Hitec HS 77 BB 180 retract servo.  19.99   if it helps.

Joe.

Better check if it is a proportional servo first. Retract servos tend to be two position only, either fully left or fully right and don't center.
Jim
Title: Re: New Springer.........???????
Post by: radiojoe on November 19, 2017, 11:08:13 AM

Yeah the 77 is proportional the 75 is what's commonly known as bang bang, although as Stewart's using a rudder I was wondering why the 180 degree, anything over 45-50 degrees ether way and the rudder becomes inefficient. a standard servo would suffice, maybe Stewart has something else in mind.   :o


Joe
Title: Re: New Springer.........???????
Post by: bfgstew on November 19, 2017, 03:55:56 PM
Thanks for pointing out my error. Yes 180 is going to be wrong......DOH.
Just that a standard 60 degree servo is not going to give a great turning circle.......maybe 90 degree? Sorrg for being a dumb ass!
Title: Re: New Springer.........???????
Post by: Tug Fanatic on November 19, 2017, 04:03:11 PM

Thanks for pointing out my error. Yes 180 is going to be wrong......DOH.
Just that a standard 60 degree servo is not going to give a great turning circle.......maybe 90 degree? Sorrg for being a dumb ass!


I am not sure how your steering is going to be connected but the relative length of the arms on the servo & rudder will change the amount of rudder deflection available. I have never found maximum rudder angle to be a problem as there comes a point where the rudder really doesn't help by turning any more.
Title: Re: New Springer.........???????
Post by: Netleyned on November 19, 2017, 04:08:42 PM
My Springer turns in it's own length.
Steerable Kort nozzle works for me
and my first had a fish tail rudder
which was almost as good.


Ned
Title: Re: New Springer.........???????
Post by: radiojoe on November 19, 2017, 04:21:55 PM
I agree with Ned, the fish tail rudder works really well, my first Spinger practically turns on it's axis with the rudder aprox 45 degrees.


Joe
Title: Re: New Springer.........???????
Post by: Mark T on November 19, 2017, 04:24:08 PM
Love the drive system Stewart a nice twist on your bow thruster project - good luck mate this should be a great build  :-))
Title: Re: New Springer........
Post by: bfgstew on November 22, 2017, 06:42:48 PM
A brief update, Little Lizzies flight is making progress, those islands are a pain to fabricate at this size!


(http://modelboatmayhemimages.co.uk/images/2017/11/22/20171122_183035.jpg)


And the ski jump!


(http://modelboatmayhemimages.co.uk/images/2017/11/22/20171122_183008.jpg)



Title: Re: New Springer........
Post by: ballastanksian on November 22, 2017, 11:37:04 PM
Aw bless, she will be a lovely ship  :-))
Title: Re: New Springer........
Post by: bfgstew on December 03, 2017, 04:03:31 PM
Well all the electrics and electronics fitted, tested and working correctly, rudder connected. Next on the agenda is give her her first sea trial.

(http://modelboatmayhemimages.co.uk/images/2017/12/03/20171203_151159.jpg)


Stewart
Title: Re: New Springer........
Post by: bfgstew on December 05, 2017, 09:21:32 PM
Flight deck in situ. Need to tidy workshop up before I continue.


May pop rotating radar and nav lights on.....?


Anywho, enjoying this build, taken my mind off my Granit build and rekindled my enthusiasum for it...... %)


(http://modelboatmayhemimages.co.uk/images/2017/12/05/20171205_205823.jpg)


Stewart