Need Help Identifying New Kit!

[SubSteve]

I'm curious where the nice looking step-sail came from!

[Subculture]

Perhaps it came with the kit, Dave mentioned likely to be a scale shipyard hull, or ‘shock horror’ someone scratch built it. :)

[redboat219]

Is Dave Manley still around?

[Subculture]

Yeah, looks as if he's living in the woods like a bear!

[Subculture]

I am worried about the stuffing boxes though, anyone know what grease is recommended? Doesn't look like mine are fully stuffed.

If the seals are nitrile use silicone grease, you shouldn't need to fill shafts up with grease, you only need to grease the rubber gland . I can't recall what seals were used on these modules, someone might chip in, they will likely be either o-rings or lip seals of some kind.

If silicone o-rings are used then use a ptfe grease, as silicone grease tends to make them swell up.

[redboat219]

Yeah, looks as if he's living in the woods like a bear!

Too bad Small World Models folded.
I like Dave Manley's rotary type servo output seals.

He had a 2" cylinder with tandem servos in development for the Type VII but decided to kill it.

[Subculture]

I like Dave Manley's rotary type servo output seals.

You can use any glanded o-ring (available from Norbert Bruggen) or a lip seal as a rotary seal, even bellows work as a rotary seal- Graupner used them like that on the Shark kit. Also simple lengths of silicone tubing work well to seal rotary shafts.

This is really the best way to seal control shafts from a WTC as it puts least strain on the seal and the servo.
.

[trout]

Dave used cup seals for drive shaft and o-rings for servos

[button pusher]

Thanks for all the replies! Looking closely at the seals, there's some residual grease that appears green, not sure if that helps identifying the seal material type and recommended grease. Seals themselves actually look okay, just a little dirty.

On another note, is it worthwhile to pursue having a forward WTC? Someone mentioned using an air pump for purging the ballast tank and use the aerosol for backup, which I like, but I don't want to drill any extra holes into my propulsion/battery compartment if I can help it - I figure the forward WTC could be the air resevoir. Also gives me an easier option for installing bow plane servos - I assume people prefer to run separate servos for these to make trimming easier? I don't feel like fiddling with a mechanical hookup from the stern planes, and looking at those teeny tiny stern planes makes me feel like the bow planes might be a good idea.

I spoke briefly with the gentleman selling this, it was his fathers project from around 2012/2013, the sail is indeed scratch built.

[redboat219]

On another note, is it worthwhile to pursue having a forward WTC? Someone mentioned using an air pump for purging the ballast tank and use the aerosol for backup, which I like, but I don't want to drill any extra holes into my propulsion/battery compartment if I can help it - I figure the forward WTC could be the air resevoir. Also gives me an easier option for installing bow plane servos - I assume people prefer to run separate servos for these to make trimming easier? I don't feel like fiddling with a mechanical hookup from the stern planes, and looking at those teeny tiny stern planes makes me feel like the bow planes might be a good idea.

https://forum.rc-sub.com/forum/build...-1-96-blueback