Topic: cheap and simple RC sub/dorsal fin project (Read 61159 times)

essex2visuvesi · « **Reply #100 on:** September 01, 2014, 07:17:05 am »

http://www.rcgroups.com/forums/showthread.php?t=1531905

Saw this and thought it might be of interest. Not quite the same as yours but might give you some more motivation

U-33 · « **Reply #101 on:** September 01, 2014, 07:26:15 am »

He's got more patience then me...if that was me, that shark would be in the bin by now!

Rich

red181 · « **Reply #102 on:** September 01, 2014, 08:24:01 pm »

how good is that shark!

Any progress with your shark Rich?

I am working on some rc plane projects and my PCF at the minute, the shark is having a rest. No offers for a commission build, so it looks like it could be asleep for a while

U-33 · « **Reply #103 on:** September 01, 2014, 08:49:25 pm »

I'm still fighting to get those two hull sections to go together, Paul...I did think about using a Revell Skipjack hull instead, but I'm not really sure about it.

Rich

red181 · « **Reply #104 on:** September 01, 2014, 09:33:26 pm »

I spoke to Andy, maybe he will make some progress. I ordered some new parts at the Haydock show, not turned up yet, if I could get it to surface run, that would be a start!

U-33 · « **Reply #105 on:** September 01, 2014, 10:07:12 pm »

I think that's what I'll be aiming for, just a decks awash surface runner, until Andy gets his done. It'll save an awful lot of work, and once it's out on the lake with just the fin showing, it should look ok.

If I hadn't have just bought a new car, I'd have ordered one of Norbert Bruggen's Dolphin kits, but I needed to get mobile again...no good having all these boats if I can't get to the lake to use them.

Rich

essex2visuvesi · « **Reply #106 on:** September 01, 2014, 11:06:34 pm »

Quote from: U-33 on September 01, 2014, 10:07:12 pm

If I hadn't have just bought a new car, I'd have ordered one of Norbert Bruggen's Dolphin kits, but I needed to get mobile again...no good having all these boats if I can't get to the lake to use them.

Rich

I'm ordering the Deep Rover in the next few weeks :)

U-33 · « **Reply #107 on:** September 02, 2014, 07:16:27 am »

Quote from: essex2visuvesi on September 01, 2014, 11:06:34 pm

I'm ordering the Deep Rover in the next few weeks :)

Very nice too...I'm not talking to you any more.

mutter mutter

Rich

U-33 · « **Reply #108 on:** September 02, 2014, 07:23:46 am »

Paul, I'm not sure if I posted these pictures before, but this seems a simple way to build a surface running shark fin. Just the top half of the Sonic with the wtc clipped under it. Ballast it right down until the base of the fin is at water level, spray it black...should look pretty good on the water, I think.

Rich

U-33 · « **Reply #109 on:** September 02, 2014, 04:34:41 pm »

Had a potter about thisarvo, came up with this...still got the rudder to work out, but it's a start.

Rich

U-33 · « **Reply #110 on:** September 03, 2014, 10:58:23 am »

Bit more pottering about this morning produced this, the first attempt at the rudder. It seems to work well, but I may just change the rudder blade shape into something more shark/whale like.

Rich

red181 · « **Reply #111 on:** September 05, 2014, 07:30:39 pm »

rich, make two of everything! You HAVE to get it to run periscope depth and be able to surface, PLEEEEEEEASE!!!!!!!!!

Paul

essex2visuvesi · « **Reply #112 on:** September 05, 2014, 08:06:07 pm »

Quote from: U-33 on September 02, 2014, 07:16:27 am

Very nice too...I'm not talking to you any more.

mutter mutter

Rich

I shouldn't worry.... I have the Revell 7C, The seawolf and a few others to do as well. But the RC car racing/restoration bug has taken hold of my son so I'm spending quite a bit of time prepping cars..... well if I'm going there anyway I may as well have fun too

red181 · « **Reply #113 on:** September 06, 2014, 08:49:45 am »

Rich, interesting to see how far forward you have the wtc, was that to balance it, as its way further forward than the stock build. Nice idea with the clips, they your old bike clips!

I am thinking I'm not up to getting everything water tight to just hang things under the top half. Your progress has renewed my enthusiasm, but I need to make more progress with my PCF (a different thread!). Hoping Andy comes up with something for Xmas pressie!

U-33 · « **Reply #114 on:** September 06, 2014, 09:53:05 am »

The wtc isn't in it's proper position there, Paul, it will be a bit further back when finalised, and I'll probably need to shorten the prop shaft as well, although bath tests will need to be done first. The clips allow me to remove/reposition the wtc easily, they will be glued and probably screwed to the top half.

As it comes out of the box, the wtc leaks like a sieve, I built the grooves up for the O rings up with a thin strip of plastic insulating tape underneath them, and once happy with the seal, a drop of cyano completed the job. I can now leave it in the bath, weighted down, for well over an hour, and it's bone dry. If I can make it watertight, so can you...just persist with it, and don't forget a smear of Vaseline around the end caps.

Rich

U-33 · « **Reply #115 on:** September 09, 2014, 04:30:15 pm »

Bit more done to the Orca...wtc is built, just waiting for a new battery to arrive from the Component Shop. I altered the rudder too, didn't like that one, so a new one is in the post. WTC clips are screwed in (cracked the gel coat, so a bit of filling is called for...

)

Hopefully it will be completed this weekend, and then it's off to the lake to see what happens...

Rich

U-33 · « **Reply #116 on:** September 09, 2014, 05:10:21 pm »

With a tail fin? Or without a tail fin? What do you reckon?

Rich

unbuiltnautilus · « **Reply #117 on:** September 09, 2014, 05:27:04 pm »

Make it removable, see what looks best in the water. Or do what I am planning and extend it aft quite a bit on a piece of carbon or fibreglass rod...makes the fish seem bigger than it is.

U-33 · « **Reply #118 on:** September 09, 2014, 06:19:02 pm »

That's a good idea, skip...why didn't I think of that? Who's a clever boy...?

Rich

red181 · « **Reply #119 on:** September 09, 2014, 09:19:49 pm »

def with tail fin, looks great Rich, I really hope it works, any chance of some video when you do it, pics at least, VERY jealous!!!!

U-33 · « **Reply #120 on:** September 10, 2014, 08:01:40 am »

It occurred to me that instead of mucking about repairing the deck, I can use the hull section instead...being a flat top, it looks a lot better than the one with the bump. (note to oneself...do NOT overtighten the screws that hold the clips on....)

And fear not Paul, there will be no doubt be plenty of video footage and pics when the thing goes in the water. What with swans, ducks, killer whales and alligators, I'm going to need a livestock movement licence to go sailing!

Rich

U-33 · « **Reply #121 on:** September 10, 2014, 09:20:08 am »

Who forgot the photo, then?

Looks much better with the flatter deck.

Rich

U-33 · « **Reply #122 on:** September 10, 2014, 12:59:00 pm »

The battery pack and the new rudder have arrived (less than 24 hours from payment to delivery...not bad, huh?)

Now tell me the thing won't turn!

Rich

U-33 · « **Reply #123 on:** September 10, 2014, 02:29:35 pm »

Rudder linkage made up...because I need to be able to remove the wtc, the rudder linkage needs to be easily parted. Solution...use one of Andy's (username on here: tattooed) magnetic couplings. Unclip the wtc, snap the magnet apart, and that's it...the cylinder is out in one piece.

Rich

red181 · « **Reply #124 on:** September 10, 2014, 09:51:31 pm »

nice....

they don't look like the mmb endcaps, have you used others, and is that a bellows coming out of the front one?

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Author Topic: cheap and simple RC sub/dorsal fin project (Read 61159 times)