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Special conditions

Special Conditions: Hamilton Standard Model 247F-1 Propeller

Special conditions are rules the FAA writes for one design when the standard certification rules do not cover something new about it. These were published January 7, 1993 for Hamilton Standard. System: propeller.

What it applies to

Applicant
Hamilton Standard
Makes
Hamilton Standard
Models
—
Published
January 7, 1993
Effective
February 7, 1993
The FAA's document
On the FAA's site

The FAA's summary their words, unchanged

These special conditions are issued for the Hamilton Standard Model 247F-1 propeller. This propeller is constructed using all composite blades, a novel and unusual design feature. These special conditions contain the additional safety standard which the Administrator considers necessary to establish a level of safety equivalent to that established by the airworthiness standards of part 35 of the FAR.

Source: FAA special conditions (final) from the Dynamic Regulatory System; the Federal Register carries the same notices.