Roger drills the shaft hole all the way through?
What a calamity!
Don't tell me the keyway is milled all the way to the top too?
Bill, something is jogging in my head....
Is this the fitting (the one that still has a top) that you drilled and tapped in two set screws?
That would be the only way on a thru-drilled head that you could keep the head where it was supposed be. Otherwise it would slip. Unless the keyway had ends. Certainly the keyway in the new shaft on A338 doesn't end in the correct place so the key in the head would HAVE to be captured, and I can't see how that would work.
UNLESS YOU TAP IN TO THE KEY WITH A SET SCREW ?
But with an open top rudder head that alone would NOT keep the head from slipping on the shaft. But might work pretty good in the old one.
Have to add in the screws, only way!
Went and got the head here
and I can see that it will be fairly easy to add a couple set screws.
Sorry about my memory....but larger set screws can easily be put in at 90degrees from the keyway into the rudder shaft. Meaning thru the sides of the fitting.
What size? Bigger the better here, I guess. 3/16 / 1/4" ?
If you put a set screw into the keyway, that would be 1/8"?
Bill, grant me enlightenment, it's not too late!:D
Now I recall you saying that you better remember to back these screws out when taking the head off the shaft!
Since I guess you DID DO THIS, how has it worked out?.... problems?
Thanks, Bill
Keyway set screws - BB3901 rudder head
Great!
Yes, can see keeping the key immobile and exactly were you want it with TWO.
It's also possible to get the head off with the key under pressure from the screws, without catastrophic damage.
The set screws are hidden in the back under the hinge bolt so it's possible to screw things up.
It's a great failsafe upgrade!
Bronze Builder's Plates for Ariels and Commanders
The Pearson Oval builder's plate that came off A338 is some sort of dull silver pot metal that hasn't corroded in any way I can see. Looks almost crisp and new.
It does NOT have the BluePeter color background and there doesn't seem to be any sign of scraping or wire pad marks.
There is around the letters tiny pits that look like what you'd see if the piece were sandcast and too close to the embossed letters to be buffed away.
It's obviously not pressurecast pot metal.
Across the bottom of the oval it stands embossed as BRISTOL, RHODE ISLAND, U.S.A.
(Trip to the Jersey Shore thread - post 124 - the S-boat oval Herreschoff builder's plate is a dead ringer for the Pearson's. Assume except for size and material, the proportions and lettering exactly the same!)
The drawing in the Bristol Bronze catalog also shows an oval generic builder's plate that has PEARSON across the top
and PORTSMOUTH, RHODE ISLAND, U.S.A.
Assuming Roger has not made any of the Bristol plates, is there any interest in this Forum in having a bronze plate made?
My (assume original) pot metal plate looks in pretty good shape.
I might be persuaded to mail it to Roger
so he can use it as a casting model
IF I get a written promise from him to return it. And a bronze one that I will of course pay for.
Anybody interested in a bronze BRISTOL, RHODE ISLAND builder's plate?
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I haven't taken the time to read all our posts here or in the archive threads.
I apologize if somebody else has got this going and I missed it.
Would like my Ariel's number stamped in the field of the bronze plate with the same large numbers as my original. May depend on the price Roger wants and a concensus here of what the cost should be for plates buffed and ready to mount with the boat's number stamped.