Model Boat Mayhem
The Shipyard ( Dry Dock ): Builds & Questions => Springer Tugs => Topic started by: bfgstew on November 12, 2017, 12:55:13 pm
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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.
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Given the colour scheme, my money is on a war-springer. But armed with what, that is the question!
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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!
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Players Airman
Or
Senior Service {-)
Ned
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The coaming sure allows for a large superstructure. Watching. An aircraft carrier that should have aircraft? - well apart from our two they normally do.
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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?
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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?
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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
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Wait until you see the propulsion set up...................... O0 O0 O0
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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:
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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.
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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
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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
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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
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Decided to use 2 x 4.5ah sla batteries instead for time being, see what run time I get off them.
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I've got two 12 volt 1.2 ah in mine with a 540 motor it runs for hours, ok2
Joe.
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Wow, that's good Joe.
Not sure how power hungry the brushless motor is going to be?
Gonna be fun finding out though...... :-))
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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
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Hi Stewart Hitec HS 77 BB 180° retract servo. £19.99 if it helps.
Joe.
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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
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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
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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!
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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.
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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
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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
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Love the drive system Stewart a nice twist on your bow thruster project - good luck mate this should be a great build :-))
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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)
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Aw bless, she will be a lovely ship :-))
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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
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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