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  1. According to Graham White's book "R 2800", the...

    According to Graham White's book "R 2800", the heads were a shrink fit when they screw them on to the cylinders. This resulted in shrinking the diameter at the top of the cylinder. The taper was not...
  2. A great book on the R 2800: R 2800 - Pratt &...

    A great book on the R 2800:

    R 2800 - Pratt & Whitney's Dependable Master Piece - by Graham White

    Graham White also has a book on Pratt & Whitney's R 4360 - 28 cylinders

    Graham White also has...
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    If he is working with 1/4" dia stock, it will...

    If he is working with 1/4" dia stock, it will work fine. Try working with 1/2" or bigger stock will probably discourage him from Blacksmithing.
    If you can firmly weld it to a 100 lb chuck of metal,...
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    10,062

    Mustangs in the 80's were available 390 rim size...

    Mustangs in the 80's were available 390 rim size Michelan tires as an option. Goodyear also made tires in this size for a very short period of time.

    Bruce
  5. Brent I also use Autocad for programming. I...

    Brent

    I also use Autocad for programming. I would be interested in looking at your lisp routines. Would you be interested in sharing them?

    Bruce
  6. I have the following if it will work PINION...

    I have the following if it will work

    PINION WIRE, 1/2 OD X 20 DP, 8 TEETH, 14-1/2 DEG PA, 4140/41L40, TEMPER: ROCKWELL C15-25

    6-8" length. Material is free, you pay for postage.

    Bruce
  7. Replies
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    4,777

    Everyday, I create a folder with that day's date....

    Everyday, I create a folder with that day's date. At the end of the day, I copy all the files I created and have modified that day to that folder. This folder is kept on my pc at work and I make a...
  8. Are the rollers radiused to match the diameter of...

    Are the rollers radiused to match the diameter of the tubing?
    You might use a strip of rubber (piece of inner tube?) and feed it thru the rollers along with the tube.

    B Herzog
  9. Replies
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    28,537

    Graham White, author of Allied Aircraft Piston...

    Graham White, author of Allied Aircraft Piston Engines and author of books about the Pratt & Whitney R-2800 & R-4360 engines, has a Merlin that I have seen him run at AEHS conferences. Quite a visual...
  10. You can see working linotype machines at the...

    You can see working linotype machines at the Midwest & Great Northern Printer' Fair (Midwest Old Settlers & Threshers) in Mt Pleasant IA and also at the Steam Threshers show over Labor day at the...
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    10,998

    Check Sunnen Products. I have seen their bore...

    Check Sunnen Products. I have seen their bore gages that long. I do not know if they were stock or specials.

    Bruce
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    8,038

    .1875-100 Class 3 Internal Thread PD Max -...

    .1875-100 Class 3

    Internal Thread

    PD Max - .1830
    PD Min - .1810

    Major Dia Max - n/a
    Major Dia Min - .1875
  13. This little bugger is used for boring chuck jaws....

    This little bugger is used for boring chuck jaws. The pins would go in the mounting holes of the chuck jaws and the chuck would close down against the pins.

    Bruce
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    2,850

    About 25 years ago, a patternmaker (in his 80's...

    About 25 years ago, a patternmaker (in his 80's and still running his shop) showed me how to put disks on using a stick of belt dressing. He had a 36" diameter disk sander. My disk sander is only...
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    19,229

    Like JR, I have both and agree with him. I got...

    Like JR, I have both and agree with him. I got the CMfTE & CMfge on my own nickle (about 15 years ago) and did it for my own satisfaction.
    At my current job, it has no influence on my salary. Like...
  16. Replies
    33
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    8,031

    You can have profile gages made to +/- .0002". ...

    You can have profile gages made to +/- .0002".
    See:
    http://www.gagemaker.com/images/stories/pdf2/datasheets/DogBoneTemplates_data.pdf
    I assume it will not be inexpe
  17. Replies
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    1,679

    In my experience, Okuma controls treat numbers...

    In my experience, Okuma controls treat numbers with no decimal, such as 2, as the number 2.
    Fanuc controls treat a number with no decimal as the least available number. In most cases, 2 would be...
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    8,282

    I screwed up. I should have said 6T.

    I screwed up. I should have said 6T.
  19. Replies
    17
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    8,282

    The WSC8s that I worked with had Fanuc 7T...

    The WSC8s that I worked with had Fanuc 7T controls.
  20. Replies
    17
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    8,282

    For about 12 years I programmed WSC 8 lathes at 2...

    For about 12 years I programmed WSC 8 lathes at 2 different jobs. The last time was about 12 years ago. At the time they were great machines. Ran 24/7 with minimal problems. Cutting 4340 rc 32-34...
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    2,415

    Ken My catalog shows the insert number as...

    Ken

    My catalog shows the insert number as 507-106. Looking at my latest Manchester catalog, I do not see that number listed.
    Many years ago, talking to Manchester, they had old parts numbers...
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    14,080

    As I tell our designers, we can make anything you...

    As I tell our designers, we can make anything you want. The question is how much do you want to spend.

    The designer shares in the responsibility of what a design costs to make and which in turn...
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    10,317

    I belong to AEHS. (Aircraft Engine Historical...

    I belong to AEHS. (Aircraft Engine Historical Society). About 6 years ago, as a group, we met with 7 (I think that was the number) of design engineers who had worked at Pratt & Whitney during WW11....
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    Check to see if your threads are out of round due...

    Check to see if your threads are out of round due to distortion of the part

    Bruce
  25. GA RR Museum

    I was there last September. Certainly not on my list of great museums, but if I was there and had the time, I would go there. I spent about 3 hours there.

    Bruce
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