§25.303 Factor of safety.

14 CFR 25 · Structure · General · at 25-153 (current)

Text in force at 25-153: from 25-23, effective 8 May 1970.

[Unless otherwise specified, a factor of safety of 1.5 must be applied to the prescribed limit load which are considered external loads on the structure. When a loading condition is prescribed in terms of ultimate loads, a factor of safety need not be applied unless otherwise specified.]

35 FR 5672 · Source

Version history

Version	Effective	Published
25-23	8 May 1970	35 FR 5672
25-0	1 Feb 1965	29 FR 18291

Rulemaking for 25-23

nprm 68-18 16 Aug 1968
final rule 9079 1 Apr 1970

Aircraft using this section

Airbus Defence and Space S.A C-212-CB entry 3 at 25-23
Airbus Defence and Space S.A C-212-CC entry 3 at 25-23
Airbus Defence and Space S.A C-212-CD entry 3 at 25-23
Airbus Defence and Space S.A C-212-CE entry 3 at 25-23
Airbus Defence and Space S.A C-212-DD entry 3 at 25-23
Airbus Defence and Space S.A C-212-EE entry 3 at 25-23
Airbus Defence and Space S.A C-212-EE entry 4 at 25-23
Airbus Defence and Space S.A C-212-VA entry 3 at 25-23
GULFSTREAM AEROSPACE LP (GALP) GALAXY entry 2 at 25-23
GULFSTREAM AEROSPACE LP (GALP) GULFSTREAM 200 entry 2 at 25-23
GULFSTREAM AEROSPACE LP (GALP) Gulfstream G150 entry 2 at 25-23
Gulfstream Aerospace Corporation GVII-G500 entry 2 at 25-23
Gulfstream Aerospace Corporation GVII-G600 entry 2 at 25-23
Textron Aviation Inc. 4000 entry 1 at 25-23
The Boeing Company 767-200 entry 4 at 25-23
The Boeing Company 767-300 entry 4 at 25-23
su Beriev Be-200ES-E entry 3 at 25-0

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