Trumpeter Seawolf building thread

[boss subfixer]

Steve,
I'm a night owl because

Steve,
I'm a night owl because of my job. When duty calls (so to speak) we go into 12 hour shifts, like now. It's kind of a whatever it takes kind of thing.
About your prop, how about trying to build something like what our Japanese friends did? It seems to me that they may have cut each blade off the hub , angled them and glued them back or used one of the blades as a template and completely built a prop from scratch.
Just some thoughts.
Take care
BSF

[anonymous]

I thought about that. But

I thought about that. But I'd like to get a lath and some other needed tools and start making my own.

A prop jet is much like the EDF (electric ducted fan) units I use in my RC jets. They like lots of RPMs to put out the trust.

I was using the WTC from my Kilo with the Maxon motor. High torque, low amp draw and low RPM.

When I build Dave's Seawolf WTC it will be using a geared 280 (I think that's what Dave told me he was using) it will make the difference in RPM.

He's been real happy with the results he's getting. After all it is a fast attack.

You take care too out there Boss,

Steve

[jdbostrom]

Those are TSM 225 surveillance

Those are TSM 225 surveillance and ranging arrays.

Jonathan

Byron,
I missed your main question. The TSM 225 surveillance and ranging arrays are the ones on the Collins. On the Seawolf (assuming you are speaking of the three large "squares" on either side of the underside of the hull), all I know is that those are simply sonar arrays.

Jonathan

[anonymous]

Tested the Seawolf yesterday. All

Tested the Seawolf yesterday. All went well at first. Changed the prop to a Dumas two blade prop and had good speed.

It turns very slowly though even with dual full flying rudders. Going to have to add clear extensions and try that next.

She sat below the actual water line a bit but trimmed well and submerged just fine. Dive planes are very effective. They too are full flying stabs.

Then she stunk to the bottom and I lost all radio control. Got her back up and found that the WTC was fully flooded except for the battery WTC.

On inspection I found that one of the seals had popped out of the housing on elevator. Don't know why or how it happened.

I took everything apart including the servos and dried it out for a few hours with a fan. Lucky for me everything still works. Nothing fried.

I replaced the seal and checked the others. Will try again to get video when the weather improves.

Steve

[turbobearcat]

Tested the Seawolf yesterday. All

Tested the Seawolf yesterday. All went well at first. Changed the prop to a Dumas two blade prop and had good speed.

It turns very slowly though even with dual full flying rudders. Going to have to add clear extensions and try that next.

She sat below the actual water line a bit but trimmed well and submerged just fine. Dive planes are very effective. They too are full flying stabs.

Then she stunk to the bottom and I lost all radio control. Got her back up and found that the WTC was fully flooded except for the battery WTC.

On inspection I found that one of the seals had popped out of the housing on elevator. Don't know why or how it happened.

I took everything apart including the servos and dried it out for a few hours with a fan. Lucky for me everything still works. Nothing fried.

I replaced the seal and checked the others. Will try again to get video when the weather improves.

Steve

Dang Steve, that would be anybody's biggest fear but I know it's happened to alot of the folks on here.

Any video of your Seawolf yet?

BTW.. I hope to have a picture of that latch I made for the Seawolf, I'm still wondering if the prop I'm using will do well enough to continue using it, it works very well for the WAlly world subs, maybe I can put the motor to it this week and run a water test and see how much it pushes...
thrust or not to thrust, that is the question.. Oh wait that don't even sound right!

I was told my replacement servo is coming ..


Mark

[turbobearcat]

Here is a picture of

Here is a picture of the hull together with using 1 screw to hold the halves together.. I used a brass strip bonded to the top half and made a ring that comes near the bottom of the sub..drilled the hole in both locations and Wa-La! a joined hull.


if anybody wants to see the band inside let me know, I'll post the picture in the morning before I leave for work.

Mark

[collins class]

Hey Mark, you were going

Hey Mark, you were going to post a pic

[turbobearcat]

Hey Mark, you were going

Hey Mark, you were going to post a pic

When I get home tonight, I might...



:O

[anonymous]

Well I did some more

Well I did some more testing today. She ran good. Turns ok once under water.

I'll be changing over to Dave's new WTC for the Seawolf later next week as I recieved a beta tester kit from him today! Thanks Dave!

So i'll report here soon and show you the construction and testing as I go.

Here's some pictures from today's run.

Steve

[anonymous]

Well guys I've started the

Well guys I've started the Dave Welch WTC for the Seawolf while I sand and fill the Washington.

First thing I did was to take this 3]http://www.subcommittee.com/forum/motor1.jpg[/img]

[anonymous]

A little more progress today.

A little more progress today. Although in the instructions Dave used a mill I didn't as I don't have one. Yet!

I know many of you don't have a mill or a lath either but you can build this WTC without one if your careful.

I'm using a drill press and dremel to do the work you see here. I am matching as much as possible Dave's build in the CD step by step. This CD that comes with the kit is loaded with information and pictures so it's hard to go wrong.

Today I started by taking the motor end cap and mounting the motor and gear box. However I wasn't able to complete it as my LHS was closed so I couldn't get the rest of the parts I needed.

More tomorrow folks.

Steve

[anonymous]

One thing I forgot to

One thing I forgot to mention here was how I milled down the 1/8 brass shaft without a mill or lath.

I used my drill press and some 100 grit sand paper. Worked just great. Do a little at a time and check fit it to the bearing until it fits. Then use descending grades to get it smooth.

I did this twice with consistent results.

Steve

[turbobearcat]

Man you and Dave have

Man you and Dave have all the nice tools, I'm stuck with a hand drill and a battery powered drimel tool..

one of these days I'm going to get better tools..
and finish my project.. Silent Hunter III has taken over my spare time over here, I spent 10 hours playing yeterday learning everything... Atleast my wife knows where to find me hehehhe

Mark

[anonymous]

Mark. Get a drill press,

Mark. Get a drill press, grinder, skill saw and band saw. They don't cost much and it will give you more possibilties. It's a start.

Ok. I got the motor, servo and ESC compartment done today.

I used 3/8 square stock styrene for the servo mount shaft. It fit perfectly the mount that comes with the GWS gear box unit. Used a bit more of the same stock to make the mounting brackets for the servos and glued the whole thing into the GWS unit. Easy stuff.

Then I used the 1/8 th brass stock to make the push rods. D&E seals for the shafts. Since there is no vacuum in this compartment I used the stock seals.

The ESC is the new Thor Design SC-20 which just fits. I was wrong Dave but you can see there's no room to spare. The Spy would have fit with room to spare but it's in another boat right now.

Now to move on to the pump compartment tomorrow. This WTC builds the most easy yet. Dave has done a masterful job. Very well thought out.

Steve

[peter w]

Hello, I am a Uk

Hello, I am a Uk Sub Committee member but a Forum beginner so please bear with me.

Steve , the pics of the Seawolf on the water look great and are making me want to build my Seawolf even quicker than I am, I do have a question about propulsion, I know that you are using a GWS motor but you said in an earlier message something about a 280 motor which is something I was thinking about using but was unsure about a gearbox can you throw any light on the matter please?

Peter.