(5)
Weather control(cloud seeding);
(6)
Aerial advertising(skywriting,bannertowing, airborne signs andpublic ad-dress systems); and
(7)
Any other operation speci.ed by the Administrator.
Amdt. 21-42, E.. 2/7/75
FAR 21.27 : Issue of type certi.cate : surplus aircraft of the Armed Forces.
(a)
Except asprovidedinparagraph(b) of this section, an applicantis entitled to a type certi.cateforan aircraftinthe normal,utility, acrobatic,[commuter,] ortransport category that was designed and constructed in the United States, accepted for operational use, anddeclared surplusby, anArmedForce of the UnitedStates, and thatis shown to comply with the applicable certi.cation requirementsinparagraph (f)of this section.
(b)
An applicant is entitled to a type certi.cate for a surplus aircraft of the Armed Forces of the United States that is a counterpart of a previously type certi.cated civil aircraft, if he shows compliance with the regulations governing the original civil aircraft type certi.cate.
(c)
Aircraft engines,propellers, and their related accessoriesinstalledin surplusArmed Forces aircraft, for which a type certi.cate is sought under this section, will be approved for use on those aircraft if the applicant shows that on the basis of the previous militaryquali.cations acceptance,and service record,theproductprovides substantially the same level of airworthiness as would be provided if the engines or propellers were type certi.cated under Parts 33 or 35 of the Federal Aviation Regulations.
(d)
The Administrator may relieve an applicant from strict compliance with a speci.c provisionof the applicable requirementsinparagraph(f) of this section,if theAd-ministrator .ndsthatthemethod of complianceproposedbytheapplicantprovides substantially the same level of airworthiness and that strict compliance with those regulations would impose a severe burden on the applicant. The Administrator may use experience that was satisfactory to an Armed Force of the United States in making such a determination.
(e)
The Administrator may require an applicant to comply with special conditions and later requirementsthan thoseinparagraphs(c) and(f) ofthis section,if theAd-ministrator .nds that compliance with the listed regulations would not ensure an adequate level of airworthiness for the aircraft.
(f)
Except asprovidedinparagraphs(b) through(e) ofthis section, anapplicantfor a type certi.cate under this section must comply with the appropriate regulations listed in the following table :
Type of aircraft Date accepted for ope-rational use by the Ar-med Forces of the United States. Regulations that apply1 .
Small reciprocating-engine powered airplanes Before May 16, 1956 CAR Part 3, as e.ective May 15, 1956.
After May 15, 1956 CAR Part 3 or FAR Part 23.
Small turbine engine-powered airplanes Before Oct. 2, 1959 CAR Part 3, as e.ective Oct. 1, 1959.
After Oct. 1, 1959 CAR Part 3 or FAR Part 23.
[Commuter category air-planes] Large reciprocating-engine powered airplanes [After Feb. 17, 1987] Before Aug. 26, 1955 [FAR Part 23 as of Feb. 17,1987.] CAR Part 4b, as e.ective Aug. 25, 1955.
After Aug. 25, 1955 CAR Part 4b or FAR Part 25.
Large turbine engine-powered airplanes Before Oct. 2, 1959 CAR Part 4b, as e.ective Oct. 1, 1959.
After Oct. 1, 1959 CAR Part 4b or FAR Part 25.
Rotorcraftwith maximum certi.cated takeo. weight of : 6,000 pounds or less Before Oct. 2, 1959 CAR Part 6, as e.ective Oct. 1, 1959.
After Oct. 1, 1959 CAR Part 6 or FAR Part 27.
Over 6,000 pounds Before Oct. 2, 1959 CAR Part 7, as e.ective Oct. 1, 1959.
After Oct. 1, 1959 CAR Part 7 or FAR Part 29.
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