today's work

[redboat219]

I believe this Tom's Chalfant's Type XXIII with your 2.5 SD. No porpoising whatsoever.

Unfortunately it was lost out on patrol.

[He Who Shall Not Be Named]

Hoping this does the trick for you, David. It’s too nice a boat to not run well.

You bet! This is my third Type-23 from Bronco. Wonderful kit and deserves to run well. It's on me... Mr. 'expert'.

[goshawk823]

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.

Hoping this does the trick for you, David. It’s too nice a boat to not run well.

[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.

[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]

[He Who Shall Not Be Named]

Ordered mine.

That's the one. Good stuff.

[Das Boot]

Ordered mine.

[biggsgolf]

David, what sensitivity is the DC set to?

[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.

[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]

[biggsgolf]

Oh, it will happen

[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]

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