Bronco Type XXIII in 1/35th scale

[He Who Shall Not Be Named]

Thank you, Sam!

[Sam Victory]

Correct me if I'm wrong...
I think the problem should be the angle keeper.


The depth of a submarine is related to many factors. When you use gyroscope, you are trying to use rudder effect to set the depth, right? It is difficult to achieve the desired effect when used on a submarine for two reasons.
1. gyroscope is an automatic control system designed for helicopters, gyroscope requires very high reaction time of the actuator, the rudder effect reaction of submarine is really not comparable to the correction speed of helicopters, so it may be counterproductive to use it on submarine;
2. The gyroscope is used to measure the acceleration and apply the integral to make the rudder correction, which is very suitable for helicopters, but in submarines, the effect of this integral will be greatly reduced, and the more the gyroscope commands the submarine, the more chaotic it may be.
The best way to keep the keel level is to use the balance meter with inclination sensor, which is not by integration, but by passing the inclination sensor to give a level standard, so there will be no error, and it is specially made for submarine, of course, there will not be the high speed rudder effect required for helicopter.

The water tank of the submarine will also affect the depth change, so really to do the fixed depth, Engel submarines use a water pressure sensor and the inclination sensor combined with a special controller (there are also two separate use) The black one with the nozzle in the picture is the water pressure sensor The small silver piece on the top left of the water pressure sensor is the inclination sensor.

[He Who Shall Not Be Named]

David,

Did you ever figure out what was causing your handling difficulties with this model?

Dan

No, Dan. I was sluething out the problem without success, then I just had to put it asside to get back to production work. It sits in the box awaiting another round of 'WTF-is-wrong-with-you!".

M

[roedj]

David,

Did you ever figure out what was causing your handling difficulties with this model?

Dan

[Warpatroller]

The fittings kits arrived! Those Propellers are beautiful things.. Now I've got to get started on these Broncos. They have been in storage for almost 2 years now..

[Warpatroller]

Thank you, Steve. I dropped the ball. Awaiting your mailing address so I can put this right. Thanks for the heads up -- I made a promise and failed to carry through with it.

David

Thanks David! I'll be on the lookout for the package.

[He Who Shall Not Be Named]

David,

I just sent you an email, regarding your fittings kits for this model. Just a heads up..

Steve

Thank you, Steve. I dropped the ball. Awaiting your mailing address so I can put this right. Thanks for the heads up -- I made a promise and failed to carry through with it.

David

[Warpatroller]

Next week I hope. It's warming up around here.

M

David,

I just sent you an email, regarding your fittings kits for this model. Just a heads up..

Steve

[red_noir]

:) perfect, looking fwd to the results.


Just un boxing my bronco kit as I type this!


Chuck

[He Who Shall Not Be Named]

Any progress on this issue?




Chuck

Next week I hope. It's warming up around here.

M

[red_noir]

Any progress on this issue?




Chuck

[MFR1964]

David,

Just back from holiday, enjoyed the fine climate of Greece, internet over there was a nightmare, i could barely stayed tuned with the problems of your demon-like boat.
But something popped my mind, what about all those floodholes you made at your keel?, maybe they act like a waterscoop, forcing your boat going down at higher speed, the openings at the back of your boat near your divingplanes, they will behave like a waterjet propulsion, lot's of incoming water is present, scooped up by your surplus of flood holes, try to tape those holes shut, and run her again.

Since summertime is almost at it's end, i'll end up the works on the OSA II soon, and start to complete the XXIII, hang in there buddy!, we will get those XXIII's running!


Manfred.

[He Who Shall Not Be Named]

More food for thought. And thanks for that. Right now I'm up-to-here with production work. Something to consider once I get that beast back into the water.

M

[GNuge]

David,
I believe your problem stems from the size shape and location of the bronco stern fins. They are very chunky, do not have the negative angle of the real boats or like the old 32 Paraelle boat and they are not in line with the stern stabilizer. I believe removing them would be the best way to determine if this is the problem. Best regards.
George

[redboat219]

There was also a long strip of foam along the entire length of the upper hull. The model was very statically stable as the righting moment it generated was very decent. You'll notice that I mounted the WTC low in the hull, below centerline. The keel weights were outside the hull along the lower keel, made from two big strips of metal (came with the 32nd Parallel kit).

Maybe you could try this set-up?