Saturday, May 16, 2009
Saturday, May 2, 2009
McCoy 60 with Tru Turn Spinner
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgsJIEjwtiShsgVLzRABrYWWNSGqDjMu_z2tHjx4sbiIWHgV4LFcLGsQhCwiG3li0WOaCfPSmoXfJFLP2sbTn6UR-Bzz_qhvO7QFSecUklt06mUyrxcJBzO-L4LlUHZhv5q2Je0K0HwINrJ/s400/5.jpeg)
I bought an aluminum 2-1/4" TruTurn spinner for use on the Sailplane's McCoy 60. I sent the spinner nut to Bob Beecroft in California for some machining modification. The stock spinner nut is shown in the upper part of the picture below.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgB_9me6iF_cYCBcKLqNecCIEJrqUokudm-6q0oWQW14TPRrMHMGrjUqSeoRigJ3SHTV4hMUJww6comtZwGARKgekgMk9JCWN7TXANsvTMwMj53nfezm-osv2044o-2nnhHJRNboHOtMmR/s200/1.jpeg)
Woody Bartelt made a special keyed prop drive spool that was only 0.27" thick as shown below, which was required to properly position the 12 X 4 APC prop relative to the front of the Sailplane's cowl.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhysIttC6uFj7i2pW4qbFRdn0-8AjSAdY8HtD4MC5M1tEmD9lVUiIhuzOOzE6ZEIaFMojL-lcgGABrAu2WiD-7Mtcr-a38wwZl535mtDSgalLr7-aoyNdM1KHWziWIwGhYaRtSa8JZuO2Px/s200/2.jpeg)
This shows these three machined parts on the shaft of the McCoy 60 along with the TruTurn spinner back plate.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgMRDX7skHGLUZt8Xi1rj2yE4gnPSYtL6FjskH4QMW5ERwA94pMKEy1tjrce1fnzkduWd3X7bUFpcQw0N3RZ9Mw6tD1btIavcsfQmRXFg1HiKsj_4yKm2eQgKMfg5FPZ7OFvVHgdFdLa-js/s200/3.jpeg)
This picture shows the machined spinner nut tightened down on the 12 X 4 APC prop.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjokV2E6IH5uEnhFK7Ufpcv_VEhyphenhyphenT6y8iXeDr5eNa7G84RzRk-8IwTHt2uByofmxpigR5VO2JukBmZkPO47L0Zxu08eXyQta56Av1DmrKPJ3uke-fJnExxSJW2xSzE6yNXQF-UouGsFUGb-/s200/4.jpeg)
Labels:
Bartelt,
Bob Beecroft,
McCoy 60,
spinner,
Tandy Walker,
Tru-turn
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