From: firstname.lastname@example.org (DDAnd) Organization: America Online, Inc. (1-800-827-6364) Date: 25 Sep 96 13:40:10 References: 1
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As a follow up to my reply on the MLG shimmy damper's on the B737 I looked up the B737 MLG configuration in Norman Currey's book on landing gear design and it shows the shimmy damper incorporated in the torque links. At static position I would estimate that the distance from the oleo c/l to the apex of the torque links to be approx 20 in. If the 5 degrees swivel that Mr. James mentioned in his reply is in the ball park, then the damper would have to accomodate a displacement of 20 * 5 / 57.296 = 1.75 in or +/-0.875 which doesn't seem out of the question. From Jane's the 737-300 has a wheel track of 206 inches(17ft,2in) and wheel base of 490 inches(40ft,10in). Using 2.5 degrees of MLG 'steering' the airplane could end up taxiing in a crab such that one MLG would be 82 inches from the centerline while the other would be 124 inches from the centerline. (206/2 - tan2.5 * 490 ) = 82, (206/2+tan2.5 * 490 ) = 124.