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  • Studebaker clutch in...a helicopter?

    I was reading my new book on the Piasecki H-21 helicopter (you may know it as the "Flying Banana") father of the turbine-powered CH-46 series and the larger (and still in production after 50 years) CH-47 Chinook.
    In discussing Frank Piasecki's first helicopter, the PV-2 (now in the National Air & Space Museum near D.C.) it mentions they used "of the shelf" parts for their proff of concept aircraft to save time and money.

    "One last critcal find was a freewheeling clutch bought new from Strudebaker, the first production automobile to offer overdrive. In the PV-2, it would automatically disengage the rotor in the event of an engine failure, allowing autorotation to a safe landing."

    I don't recall reading that Studebaker built trhe first overdrive. Is that true?
    But they must have made a good clutch system.
    63 Avanti R1 2788
    1914 Stutz Bearcat
    (George Barris replica)

    Washington State

  • #2
    (copy)

    1913 First to cast six-cylinder engines in block.
    1913 First to produce a car with crown fenders.
    1913 First to produce a six-cylinder car to sell for less than $2,000.
    1916 First to produce a seven-passenger four cylinder.
    1916 First to produce a 40 horsepower touring car to sell for less than $1,000.
    1919 First extensive use of pressed steel throughout.
    1920 First to cast the intake manifold in the detachable head.
    1920 First to use (and invent) the internal inlet manifold hot spot.
    1920
    1921 First to develop and patent molybdenum steel and to produce a car in which it was used.
    1925 First to use a hydrostatic gas gage.
    1925 First to mass produce hardtop body (Duplex Roadster & Tourer).
    1926 Studebaker was the first automobile manufacturer in the USA to open a controlled outdoor proving ground.
    1927 First to use the mechanical fuel pump.
    1928 First to use ball bearing spring shackles.
    1928 First full power (straight-through) muffler.
    1929 First to use rubber covered steel core steering wheels.
    1930 First to use carburettor silencer.
    1930 First to use thin steel-backed main bearings, adopted from aircraft design.
    1930 First to use free wheeling--the greatest step forward in automotive history since the adoption of self starters.
    1930 First to use the automatic spark control advance to improve fuel economy.
    1930 First to use helical gears in transmission (high and second).
    1930 First to use valve spring vibration dampers.
    1933 First to use "heat-dam" pistons.
    1934 First to use celeron spoke-type camshaft gear.
    1935 First to use planar wheel suspension.
    1936 First to use the automatic hill holder.
    1937 First to use non-scratch piston rings.
    1937 First to use Hancock rotary door latches.
    1937 First to use the variable ratio steering gear.
    1937 First to use direct acting shock absorbers.
    1937 First to have double wall pickup bodies on trucks.
    1938 First to use Climatizer - combination heater and ventilator under the front seat.
    1940 First manufacturer to receive first place awards in all three divisions of Gilmore Economy run.
    1941 First major production use of curved windshield (Sedan-Coupe)
    1946 First to introduce post-war automotive styling, the "fender less" slab side design.
    1946 First to use self-adjusting brakes.
    1946 First to use "back-lighting for its instrument panel.
    1947 First to pioneer all-around glass with curved rear windows of 180 degree for full vision.
    1947 First in low-price field to use two-piece propeller shaft.
    1948 First to use nylon upholstery.
    1948 First to use instrument panel design for under-the-hood accessibility on trucks.
    1948 First truck with enclosed cab step.
    1950 First to use air cooled torque converter transmission.
    1950 First to use automatic transmission anti-creep device.
    1950 First to use inhibitors for "park" in automatic transmission.
    1950 First to use no-rollback feature on automatic transmission.
    1951 First to use filtered air to the automatic choke coil.
    1951 First to use polythene rear spring liners.
    1952 First to use mechanical power steering.
    1953 First to use carburettor with hot air passage to prevent idle freeze-up.
    1953 First to introduce modern American family sports car styling.
    1953 First to use high efficiency filter paper type carburettor air cleaner.
    1954 First to use self-centring, self energising brakes.
    1954 First to use Sapphire super enamels, which need no waxing.
    1955 First to demonstrate and announce interlocking safety door latches.
    1956 First to use Safety-eye speedometer.
    1956 First to use flared fin brake drums to minimise "fading" due to heat.
    1956 First passenger car to use acoustical sound deadening headlining.
    1956 First complete line of sports-type family cars by an American auto manufacturer.
    1956 First to bring large displacement, high compression engines to the low price field.
    1956 First to install limited-slip or power-driving differential on trucks as optional original equipment.
    1959 First to introduce totally new dimension in motoring with the Lark.
    1960 First to introduce a complete line of body styles in the compact car field, including first convertible.
    1961 First to have instrument panel safety padding standard equipment on all passenger car models.
    1962 First US auto manufacturer to offer calliper type disc brakes on a full sized car (Avanti).
    1962 First to in the industry to install seat belt mountings for four belt installations in every car.
    1962 First to introduce built in roll bar (Avanti).
    1962 First to make transistorised ignition standard equipment (Avanti R3, R4).
    1963 First to install seat belts in the front of every car.
    1963 First to introduce sliding roof station wagon.
    HTIH (Hope The Info Helps)

    Jeff


    Get your facts first, and then you can distort them as much as you please. Mark Twain



    Note: SDC# 070190 (and earlier...)

    Comment


    • #3
      This might be a stupid question..but is freewheeling the same as overdrive?
      63 Avanti R1 2788
      1914 Stutz Bearcat
      (George Barris replica)

      Washington State

      Comment


      • #4
        Jeff, that info would make a great "poster"/large pamphlet, maybe with some pics! if it hasn't already been done...
        Kerry. SDC Member #A012596W. ENCSDC member.

        '51 Champion Business Coupe - (Tom's Car). Purchased 11/2012.

        '40 Champion. sold 10/11. '63 Avanti R-1384. sold 12/10.

        Comment


        • #5
          Originally posted by JBOYLE View Post
          This might be a stupid question..but is freewheeling the same as overdrive?
          Not a stupid question at all!

          "Freewheeling" has to do with the sprag clutch (overrunning clutch) put at the output end of the transmission.

          While an overdrive transmission has the feature, it is not predicated on overdrive itself.
          The first "freewheeling" transmissions were not overdrive.
          It was marketed as a mileage item.
          While an interesting feature, it never gained widespread popularity.
          Especially where there are any long downhill grades.....
          Because in that scenario...It's all brakes, and only brakes, with no compression braking from the engine.

          A tech guy could probably explain it better...
          HTIH (Hope The Info Helps)

          Jeff


          Get your facts first, and then you can distort them as much as you please. Mark Twain



          Note: SDC# 070190 (and earlier...)

          Comment


          • #6
            Originally posted by Corvanti View Post
            Jeff, that info would make a great "poster"/large pamphlet, maybe with some pics! if it hasn't already been done...

            Google "Studebaker Firsts"
            There are several nice pieces out there by chapters already.....
            HTIH
            Jeff
            HTIH (Hope The Info Helps)

            Jeff


            Get your facts first, and then you can distort them as much as you please. Mark Twain



            Note: SDC# 070190 (and earlier...)

            Comment


            • #7
              Thanks for the info.

              It would be interesting to have an SDC member look at the helicopter in the NASM to determine what model of clutch it is. The helicopter was made during WWII, so we know some of the answer.
              I'm sure the SNM could ask the NASM for quick access. I'd guess the engine/clutch would be easy to get to (once you get byond the ropes and security guards).
              Might make an interesting Antique Studebaker Review or Turning Wheels article.
              Last edited by JBOYLE; 01-28-2013, 11:51 AM.
              63 Avanti R1 2788
              1914 Stutz Bearcat
              (George Barris replica)

              Washington State

              Comment


              • #8
                I'm sure you meant WWII, right John?

                Piasecki Helicopter designed and successfully sold to the United States Navy a series of tandem rotor helicopters, starting with the HRP-1 of 1944. The HRP-1 was nicknamed the "flying banana" because of the upward angle of the aft fuselage that ensured the large rotors did not strike each other in flight. The name would later be applied to other Piasecki helicopters of similar design, including the H-21.
                HTIH (Hope The Info Helps)

                Jeff


                Get your facts first, and then you can distort them as much as you please. Mark Twain



                Note: SDC# 070190 (and earlier...)

                Comment


                • #9
                  The sprag clutch used for free wheeling became an essential part of the overdrive, and similar sprags are used in most automatic transmissions today. I doubt the one in the helicopter would be visible without tearing the machine's transmission apart. It's less than 4 inches in diameter, and would have to be housed in a case with lubricant.
                  Gord Richmond, within Weasel range of the Alberta Badlands

                  Comment


                  • #10
                    The original freewheeling units could be engaged/disengaged by a button in the centre of the gear shift knob. When the button was depressed the shift lever would move further forward (in second gear) or further to the rear (third gear) to engage the freewheeling feature.

                    Terry

                    Comment


                    • #11
                      Originally posted by DEEPNHOCK View Post
                      I'm sure you meant WWII, right John?

                      Yep.......
                      63 Avanti R1 2788
                      1914 Stutz Bearcat
                      (George Barris replica)

                      Washington State

                      Comment


                      • #12
                        'bout half way down the first page of this thread

                        http://warbirdinformationexchange.or...hp?f=3&t=48608

                        there are quite a few pics of the H-21 and a few HRP-1s.

                        Note that first bird is sitting on the White House lawn- who's getting into that thing???





                        StudeDave '57
                        StudeDave '57
                        US Navy (retired)

                        3rd Generation Stude owner/driver
                        SDC Member since 1985

                        past President
                        Whatcom County Chapter SDC
                        San Diego Chapter SDC

                        past Vice President
                        San Diego Chapter SDC
                        North Florida Chapter SDC

                        Comment


                        • #13
                          Originally posted by StudeDave57 View Post

                          Note that first bird is sitting on the White House lawn- who's getting into that thing???

                          Not Ike. His first helicopter flight was in a Bell 47J Ranger (H-13J) later replaced by H-34s...I've never seen any mention of a president flying in a H-21.
                          63 Avanti R1 2788
                          1914 Stutz Bearcat
                          (George Barris replica)

                          Washington State

                          Comment

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