Log of Alberg 30 #262 on 11 April 2019


Purpose: Prepare for Sailing in 2019 Annapolis NOOD
Complement: Yoni Bresler

  • Drilled out two stainless steel rivets securing one end cap of the spinnaker pole. One of the rivets was a bit proud of the surface. The other end cap has four rivets. Took a 3/16" hole to free the rivets.
  • Drilled out two aluminum rivets holding the inboard end of a 1/16" diameter coated steel sheet/guy release wire.
  • Pole is aluminum with an outer diameter of 2-1/2", wall thickness of 3/32", inner diameter of just over 2-5/16" and 134-1/2" long.
  • End cap is 4-7/8" long from outboard end to shoulder that seats against the pole, 3-1/8" from inboard face of the jaw to shoulder that seats against the pole.
  • End cap section inserted into the pole is 2-5/16" diameter, 7/32" wall thickness, and 1-17/32" long.
  • Alberg 30 class rules state: "The maximum length of spinnaker/whisker poles used when racing shall not exceed 10'9", the maximum "J" dimension."
  • Amount to trim the pole:
    • 4-7/8" inboard end cap
    • 3-1/8" outboard end cap to inner face of jaw
    • 0-1/2" thickness of track at the mast
    • ------
    • 8-1/2" aside from the length of the aluminum tube
    • 129" max length of pole
    • 008-1/2" length of end caps
    • -------
    • 120-1/2" length of the aluminum tube required
    • 134-1/2" current length of the aluminum tube
    • 120-1/2" required length of the aluminum tube
    • -------
    • 014" amount to cut off of the aluminum tube
    • Verification:
    • 142-1/2" from outside of end to inner face of other end cap
    • 000-1/2" thickness of track at the mast
    • -------
    • 143" current effective length
    • 129" maximum allowed length
    • ----
    • 014" amount to cut off of the aluminum tube -- Matches!
© Jonathan M. Bresler