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PapaG39 · 11-07-07, 01:28 PM

I have two campaigns going in the North Sea area. One with older brother Erik VonBrat and his type IID boat and the other with younger brother ManFred VonBrat in his shiney new VIIB boat so last night I did some comparisons in fairly smooth and moderate wave action.
This time I made sure that **BOTH** the dang props were spinnin away.

The most desireable and efficient speed for the type IID seemed to be:
Submerged: 3kts gave me about 60km to the first redline on the Amps gage.
Surfaced: 6kts

Type IIB
Submerged: 3kts seemed to give about 60km to the redline & 4kts about 50km.
Surfaced: Same as you guys, about 8kts was actually the most efficient for operation in the smaller North sea area.

As far as charging the batteries, it didn't seem to matter if you went 3kts or 12 kts it still took about 30km or so to fully charge from the first redline.

I must have screwed up on my other testing because this time the numbers were more close together on numerous tests. I most likely forgot to check that two props were running...

11-07-07, 01:28 PM	#15
PapaG39 Frogman Join Date: Jun 2007 Location: Phoenix, Arizona Posts: 297 Downloads: 4 Uploads: 0	I have two campaigns going in the North Sea area. One with older brother Erik VonBrat and his type IID boat and the other with younger brother ManFred VonBrat in his shiney new VIIB boat so last night I did some comparisons in fairly smooth and moderate wave action. This time I made sure that BOTH the dang props were spinnin away. The most desireable and efficient speed for the type IID seemed to be: Submerged: 3kts gave me about 60km to the first redline on the Amps gage. Surfaced: 6kts Type IIB Submerged: 3kts seemed to give about 60km to the redline & 4kts about 50km. Surfaced: Same as you guys, about 8kts was actually the most efficient for operation in the smaller North sea area. As far as charging the batteries, it didn't seem to matter if you went 3kts or 12 kts it still took about 30km or so to fully charge from the first redline. I must have screwed up on my other testing because this time the numbers were more close together on numerous tests. I most likely forgot to check that two props were running... Last edited by PapaG39; 11-07-07 at 02:53 PM.