Stingray Build

[RCnut]

Not an RC version but Built for Andercon with a spinning Ratemaster shot behind a water tank as was the original.

[He Who Shall Not Be Named]

Mamas -- thank you so much for your patience and understanding during my very tardy and incomplete performance on this job. I will help wherever I can. You are a gentleman and one hell of a Craftsman.

David

[RCnut]

Got the Subdriver from David today as well as the other bits promised (Sent me back the Kit as well) so I am a happy bunny, As David informed me they were not quite finished but one was as the pictures showed and the other with most of the components there. I am "Confident" that with his help I will get it into the Stingray before the summer ends. Thanks again David.

[RCnut]

Sorry, that's really bad grammer...I wanted to say. Hi David. Do you have any updates for me on the progress (or not) of the Subdriver for the Stingray model submarine featured in this thread, something, anything?

[RCnut]

Hi David, Any Updates My on the Stingray Subdriver that your supposed to be doing for me?

[RCnut]

Hi David, Any Updates My on the Stingray Subdriver that your supposed to be doing for me?

[RCnut]

Any Updates on Subdriver Progress? :)

[RCnut]

Sorry guys, our Mayor was smoking crack and I think I was down wind of him, but I was in a drunken stupour at the time ! ( Toronto mayor Rob Ford)
The vertical tail fins should turn it and swing the arse around .
Testing would have too be done too determin speed and number of internal helixes too attach too the bore and size ( developed blade area?) Consider a 4 start thread with the helix set 90 degrees apart. I wonder if the external shape of the rate master would have a "paddel wheel "effect ?
Or put a 7 blade ringed prop attached too the rate master in the bore would be easier than the helix again testing would prove or disprove this idea, nothing is cemented yet.
Forward is possible with the pump jets as you plan , but what about reverse?
Water intake could be at the sides where thoes scaloped areas are and on the underside just ahead of the rate master there is that bulbous area a few screened holes could be added.
Another thought that departs from the helix idea is 2 pump jets , one in each of thoes scaloped depressions and steer it differentally
Rick

Rick, Your expertise in this field far exceeds mine. :) The twin jet idea was one I had a few years back as well. It was on the then available 3 foot kit (Choco), I installed 2 Kehrer jets and did the differential thing, tried it once in the water and for some reason never did again, It didnt go to well. Anyway gave the kit to a buddy of mine and he still has it. Yep Jets are a bit limited in terms of reverse unless you install a bucket and that just looks pants on anything other than a proper boat. Onward and upward.

[Rick Teskey]

Sorry guys, our Mayor was smoking crack and I think I was down wind of him, but I was in a drunken stupour at the time ! ( Toronto mayor Rob Ford)
The vertical tail fins should turn it and swing the arse around .
Testing would have too be done too determin speed and number of internal helixes too attach too the bore and size ( developed blade area?) Consider a 4 start thread with the helix set 90 degrees apart. I wonder if the external shape of the rate master would have a "paddel wheel "effect ?
Or put a 7 blade ringed prop attached too the rate master in the bore would be easier than the helix again testing would prove or disprove this idea, nothing is cemented yet.
Forward is possible with the pump jets as you plan , but what about reverse?
Water intake could be at the sides where thoes scaloped areas are and on the underside just ahead of the rate master there is that bulbous area a few screened holes could be added.
Another thought that departs from the helix idea is 2 pump jets , one in each of thoes scaloped depressions and steer it differentally
Rick

[RCnut]

duh dude.....

Lol, I must be thick then, Sometimes things escape me, :)

[greenman407]

no!!!! What? :)

duh dude.....

[RCnut]

Guys I'm not dismissing any ideas out of hand. But when I build a model of a craft and want to make it "work" Like it did on screen, I try not to spoil the look by adding or taking away anything. I had a cutaway pic that was done years ago (TV21) of the stingray and it clearly showed an impeller inside the ratemaster, So thats kindof the way I went. Interestingly I'd like to make a Bladerunner Spinner that works, but untill Colibri make a tubine smaller than the one they already do, with enough thrust and cheap enough for me to buy 4 of them, it will remain a dream.

[RCnut]

Thats funny! I work with Cement mixing trucks(Oshkosh) everyday. You know what happens when you cant get the cement out of one right?

No!!!! What? :)

[greenman407]

Thats funny! I work with Cement mixing trucks(Oshkosh) everyday. You know what happens when you cant get the cement out of one right?

[He Who Shall Not Be Named]

Interesting thoughts guys, How fast would the ratemaster have to turn to be an effective method of propulsion, How big would the intake be and where would you put it? Also how would you turn the ship. And Lastly, Would any of those methods intrude on the ""Look" of the ship? Just asking as I have had to make sure this model looks good out of the water as well as in.

If that 'internal Archimedean screw' idea was broached by anyone but Rick Teskey I would have dismissed it as fluff and nonsense. But, Rick is every inch the Mechanic in this game -- he does a great deal more than shovel out 'ideas' -- he makes them a practical reality. Anyone who can make the PROTEUS work under the water has my ear.

Thanks, Rick!!! ... now I can't get the rumbling sound and sight of a slowly churning cement mixer out of my mind.

M