Darryl Holman is building a Coot-A at his home in Redmond, Washington.
  • Redmond, WA
    • overcast
    • Temp: 57°F
    • Humidity: 88%
    • Wind: Calm
    • Dew Point: 54°F
    • Barometer: 29.84" Hg (1010 hPa)
    • Clouds: overcast
    • Visibility: 10 miles

    • Calendar

    September 2010
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    October 9, 2009

    Most delicious “WARNING”

    Filed under: AA1, Engine, Not Coot, Testing — Darryl @ 11:45 pm

    This evening I’m going over Lycoming Service Instruction 1427B in anticipation of breaking in my Lycoming 0235 in the Yankee tomorrow, following the reconditioning of one cylinder. The document describes the engine break-in procedure in great detail, including ground testing the engine with a test club in place of the prop. On page 3 comes the warning:

    WARNING: ENGINE TEST CLUBS MUST BE REPLACED WITH APPROVED FLIGHT PROPELLERS BEFORE FLYING AIRCRAFT.

    Umm…right. Got it.

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    September 20, 2005

    Pull Tests

    Filed under: Testing — Darryl @ 1:34 am

    Almost evey time I mix up a batch of T88 epoxy, I make a pair of pull-test pieces. One of each pair gets tested during construction. The other pair is available in case the FAA cares to replicate the test. In any case, here are the results of the pull tests for the bulkhead construction to date.

    [pull test 1]

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