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Code of Federal Regulations
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 Sec. 23.657
Part 23 AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES |
| Subpart D--Design and Construction | Control Surfaces |
Sec. 23.657
Hinges.
(a) Control surface hinges, except ball and roller bearing hinges, must have a factor of safety of not less than 6.67 with respect to the ultimate bearing strength of the softest material used as a bearing.
(b) For ball or roller bearing hinges, the approved rating of the bearing may not be exceeded.
(c) Hinges must have enough strength and rigidity for loads parallel to the hinge line.
 Comments
Document History
Notice of Proposed Rulemaking Actions:
Notice of Proposed Rulemaking. Notice No. 64-17; Issued on 03/25/64.
Final Rule Actions:
Final Rule. Docket No. 4080; Issued on 09/28/64.
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