today's work

[redboat219]

Submersible Tragflugelboot. Plan was to wait in submerged mode. Once the enemy was in range ballast tanks were blown and high speed attack and subsequent evasion was done on the surface.

Here's something I wish Manfred made.

Rudolf Engelmann's Versuch Schnellboot 5 (Experimental Fast Boat 5 or VS 5) also known as Engelmann-boot, a semi-submersible, fast-attack torpedo boat for use in coastal waters. Armament consisted of two forward-firing, 21 in (533 mm) torpedo tubes in the bow and two 20 mm cannons atop the superstructure.

[gantu]

Versuchs Schnellboot 5 (VS 5) Semi-submersible Attack Boat | Old Machine Press

[biggsgolf]

harborfest, norfolk - Search Images

I'll give you specifics when I get them, sir.

Thanks David!

[biggsgolf]

David, do you have finished photos of your Type IX you can post sir?

[He Who Shall Not Be Named]

David, do you have finished photos of your Type IX you can post sir?

Never finished it. Work got in the way. Retired, its now project 101 on my bucket-list.

[biggsgolf]

Oh, it will happen

[He Who Shall Not Be Named]

[Ken_NJ]

David, going back to the XXIII. From after the boat was completed, what problems did you encounter while running the boat and what were your corrective actions? This would be helpful for me and others going forward. Was it weight distribution, foam, dive plane issues, other issues? You mentioned to me at Subfest the CG was just aft of the front of the sail. We got cut short from the weather for me to take a detailed look at the boat.

[He Who Shall Not Be Named]

David, going back to the XXIII. From after the boat was completed, what problems did you encounter while running the boat and what were your corrective actions? This would be helpful for me and others going forward. Was it weight distribution, foam, dive plane issues, other issues? You mentioned to me at Subfest the CG was just aft of the front of the sail. We got cut short from the weather for me to take a detailed look at the boat.

Severe pitch oscillations when dived. Initial placement of the c.g. and c.b. was at the hulls mid-point -- as you noted, that put the c.g. and c.b. at the sails leading edge. I then moved the c.g. and c.b. forward four-inches. No joy. This weekend I'm moving the c.g. and c.b. back four-inches aft of the sails leading edge. Film at Eleven.

[biggsgolf]

David, what sensitivity is the DC set to?

[Das Boot]

Ordered mine.

[He Who Shall Not Be Named]

Ordered mine.

That's the one. Good stuff.

[He Who Shall Not Be Named]

[MFR1964]

David,
So you're took up the gauntlet to get the XXIII to run good, made a usefull observation at Gangelt Germany, was running my XXIII and during higher speeds she took the plunge to the bottum, steering divingplanes full down, i could see that because it was inside clear water at the swimmingpool, i wonder i it has something to do with the AFD with higher speeds.
To my surprice the XXI ran great without a ADF, i want to remove the ADF from the XXIII to see if that will give the same results as with the type XXI in handling underwater, i'll report back with the results.

Manfred.

[He Who Shall Not Be Named]

David,
So you're took up the gauntlet to get the XXIII to run good, made a usefull observation at Gangelt Germany, was running my XXIII and during higher speeds she took the plunge to the bottum, steering divingplanes full down, i could see that because it was inside clear water at the swimmingpool, i wonder i it has something to do with the AFD with higher speeds.
To my surprice the XXI ran great without a ADF, i want to remove the ADF from the XXIII to see if that will give the same results as with the type XXI in handling underwater, i'll report back with the results.

Manfred.

I'm all ears, Manfred. I'm completing the re-trim of my Type-23 tonight -- this third change of the boats c.g.-c.b. about seven inches aft of the initial c.g.-c.b. position, which was, when first operated, at the boats longitudinal mid-point. Open water test this Sunday. Film at Eleven, my friend.