Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length.

[bfgstew]

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.

[SailorGreg]

Given the colour scheme, my money is on a war-springer. But armed with what, that is the question!

[bfgstew]

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!

[Netleyned]

Players Airman
Or
Senior Service
Ned

[Tug Fanatic]

The coaming sure allows for a large superstructure. Watching. An aircraft carrier that should have aircraft? - well apart from our two they normally do.

[bfgstew]

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?

[bfgstew]

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?

[jarvo]

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

[bfgstew]

Wait until you see the propulsion set up......................

[bfgstew]

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.........

[bfgstew]

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.

[radiojoe]

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

[Starspider]

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

[bfgstew]

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

[bfgstew]

Decided to use 2 x 4.5ah sla batteries instead for time being, see what run time I get off them.

[radiojoe]

I've got two 12 volt 1.2 ah in mine with a 540 motor it runs for hours, 


Joe.

[bfgstew]

Wow, that's good Joe.
Not sure how power hungry the brushless motor is going to be?
Gonna be fun finding out though......

[bfgstew]

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

[radiojoe]

Hi Stewart     Hitec HS 77 BB 180° retract servo.  £19.99   if it helps.

Joe.

[JimG]

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

[radiojoe]

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.   


Joe

[bfgstew]

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!

[Tug Fanatic]

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.

[Netleyned]

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

[radiojoe]

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