58. An aircraft engine means an engine that is used or __________________ to be used for __________________ aircraft.59. A propeller means a device for propelling an aircraft that has __________________ on an engine-driven shaft and that, when __________________, produces by its action on the air, a __________________ approximately perpendicular to its plane of rotation.60. A restricted-category type certificate will be issued for an aircraft that has been shown to have no feature or characteristic that makes it __________________ when operated under the __________________ prescribed for its intended use.61. A person may apply for a production certificate if he or she holds a current __________________ certificate, a license agreement, or an __________________ for the product concerned.62. The holder of a production certificate may obtain an __________________ certificate without further showing, except that the Administrator may inspect the aircraft for __________________ with the type design.63. No person may operate a limited-category civil aircraft carrying persons or property for __________________ or __________________.64. The FAA publishes the minimum standards for aircraft certification in several different parts depending upon the __________________ of the aircraft.65. Aircraft that had applications for type certificates prior to the early 1960s are certified under the __________________ Regulation standards.66. The four parts pertaining to aircraft (23, 25, 27, 29) are arranged in such a manner that the __________________ number for a specific topic will be the __________________ in all four parts.67. The General subpart of an aircraft airworthiness standard lists the __________________ for the part.68. The Flight subpart of an aircraft airworthiness standard details the flight requirements that the aircraft must be able to __________________ and/or maintain. The requirements for weight, center of gravity, and __________________ handling are also in this subpart.69. The Structure subpart of an aircraft airworthiness standard sets the minimum requirements for the various __________________ that the structure must be able to withstand.70. The Design and Construction subpart of an aircraft airworthiness standard contains factors and considerations to be used in __________________ various parts or systems of the aircraft.71. The Powerplant subpart of an aircraft airworthiness standard covers powerplant __________________ and requires that the engine be __________________ certificated under Part 33.72. The Operating Limitations and information subpart of an aircraft airworthiness standard sets the standards for both the __________________ and the __________________ operating the aircraft.