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Dec 18, 2019, 10:02 AM
Modeler/ Historian
Stephen Vick's Avatar
Thread OP
Santa came early this year, and delivered to Graupner Speed 500 KV brushless outrunners! They are going in this weekend. Pics to follow.
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Feb 21, 2020, 08:53 AM
Modeler/ Historian
Stephen Vick's Avatar
Thread OP
Too windy for sailing this weekend, so.... Back to work on the U-boat! I have the motors, speed controls, ballast control and angle keeper yet to install. Next will come pushrods and seals , The stock accordion seals are 20 years old and I don't trust them. I found replacements from an unlikely source. I'm using accordion seals made for DF 95 sailboats, I bought them from Dragon Sailing USA. They are a smaller diameter so the stock Robbe tubes will not be used, no biggie...
Feb 22, 2020, 02:02 PM
Registered User
An alternative to the accordion seals: push-rod seal 2mm or 3mm
Feb 23, 2020, 12:22 PM
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tchalfant's Avatar
i do like the Engel seal.
Feb 23, 2020, 05:20 PM
Latitudes vs Attitudes
Bob Gaito's Avatar
-And utilize the Sub Ed Tordahl linear servo output sold by Bob at Nautilus Drydocks...( prevents side force leakage from the seal)

https://www.rc-submarine.com/product...rvo-conversion
Last edited by Bob Gaito; Feb 23, 2020 at 05:26 PM.
Feb 26, 2020, 03:50 PM
Latitudes vs Attitudes
Bob Gaito's Avatar
...
Last edited by Bob Gaito; Feb 26, 2020 at 04:44 PM.


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