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VOLUME 14

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A//TEO

NUMBER 119

Washington, Wednesday, June 22, 1949
4b.51-l and 4b.51- in 14 CFR. They CONTENTS
have been coordinated with authorized representatives of the aviation industry. Alien Property, Office of Chapter I Civil Service Commission They are made effective without delay Notices:
in order to promote safety of the flying Vesting orders, etc.:
public. Compliance with the notice, pro P art 6E xceptions F rom the Bender, Hans_____________
cedures, and effective date provisions of Competitive S ervice
Boyle, Margaretha_________
section 4 of the Administrative Proce DEPARTMENT OF THE NAVY
dure Act would be impracticable and Civil Aeronautics Administra tion-
Under authority of 6.1 a of Execu contrary to the public interest, and Rules and regulations:
tive Order 9830, and at the request of the therefore is not required.
Airplane airworthiness, trans Department of the Navy, the Commission 4b.51-l Technical Standard Order port categories; airspeed in has determined that the positions of pro dicator and altimeter_______
fessors, instructors and teachers in the TSO-C2a: Airspeed Indicator Pitot Naval War College should be excepted Static CAA rules which apply to Civil Aeronautics Board from the competitive service. Effective 4b.51a Introduction. Under sec See also Civil Aeronautics Admin upon publication in the F ederal R egis istration.
tion 601 of the Civil Aeronautics Act of ter, 6.106 c 1 is amended to read 1938, as amended, and 3.06, 3.51, 4a.07, Notices:
as follows :
Hearings, etc.:
4a,513, 4b.05, 4b.51, 6.05, and 6.51 of this American Airlines, Inc., and 6.106 Department of the Navy. chapter, the Administrator of Civil Aero Delta Air Lines, Inc.; appli
nautics is authorized to adopt standards cation for approval of in c United States Naval Academy for airspeed indicators intended for use terchange of equipment 1 NC/PD. Professors, instructors, and in civil aircraft. In adopting these agreement____________
teachers in the United States Naval standards, consideration has been given Central Airlines, Inc.; control Academy, the United States Naval Postto existing Government and industry case----------------------------gradaute School, and the Naval War Col standards for airspeed indicators.
Rules and regulations:
lege.
b Directive 1 Provision. T h e Parachute packing period ex tension, chair-type; general R. S. 1753, sec. 2, 22 Stat. 403; 5 U. S. C. performance requirements for airspeed operation rules___________
631, 633. E. O. 9830, Feb. 24, 1947, 12 indicators, as set forth in sections 6 and F. R 1259; 3 CFR, 1947 Supp. E. O 9973, 7 of SAE Specification AS-391A, Airspeed Civil Service Commission June 28, 1948, 13 F. R. 3600, 3 CFR, 1948 Indicator pitot static revised February Rules and regulations:
Supp Competitive service exceptions;
1, 1949,1 stated below, are hereby estab Department of the Navy___
U nited S tates Civil S erv lished as minimum safety performance ice Commission , standards for airspeed indicators in Coast Guard seal H. B. M itchell, tended for use in civil aircraft;
Rules and regulations:
President.
Lifeboats on ferryboats_______
1. Purpose. To specify m in im u m require
TITLE 5 ADMINISTRATIVE
PERSONNEL

P. R. Doc. 49-4977; Piled, June 21, 1949;
8:47 a. m.

TITLE T4 CIVIL AVIATION
Chapter I Civil Aeronautics Board Supplement 5
P art 4bA irplane Airworthiness T ransport C ategories airspeed indicator pitot static ; and altimeter, pressure actuated, sensitive type
Acting pursuant to the authority stated hereinafter, the following rules are adopted. They supersede Technical Standard Orders TSO-C2 and TSO-C10, which were published as supplements to 4b.51 on December 15, 1948, in 13 F. R.
7729-7733, and were redesignated as
ments for Pitot Static Pressure Type of Air speed Indicators for use in aircraft, the oper ation of which may subject the instruments to the environmental conditions specified in Section 3.3.
2. Scope. This specification covers six types cf instruments as follows:
Type I: 30-250 miles per hour range.
Type II : 40-300 miles per hour range.
Type III : 50-400 miles per hour range.
Type IV : 50-450 miles per hour range.
Type V : 50-700 miles per hour range.
Type VI: 50-425 knots range.
3. General requirements.
3.1 Materials and workmanship.
3.1.1 Materials. Materials shall be of a quality which experience and/or tests have demonstrated to be suitable and dependable for use in aircraft instruments.
1 Copies may be obtained from the Society of Automotive Engineers, 29 West 39th St., New York, New York.
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Commerce Department
ee Civil Aeronautics Administra tion ; National Bureau of Stand ards.
Customs Bureau
Notices:
Pacific Islands; additions and deletions to No consul list 3381
Federal Power Commission
Notices:
United Natural Gas Co. ; hearing.

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Federal Security Agency
See Food and Drug Administra tion; Freedmens Hospital; Pub lic Health Service.
Federal Trade Commission
Notices:
Leather and shoe finders in dustry; hearing___________ 3383
Proposed rule making:
Floor wax products industry 3381
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