TCDS LTC-14

MODEIS: Northrop (Army) P-61, P-61A, P-61B (Approved 4/13/47) SPECIFICATION NUMBER: I-14-2 (Eligible for Certification in Limited Category only.) (Holder of Limited Type Certificate: Northrop Aircraft, Inc., Hawthorne, CA) Engines 2 Pratt & Whitney R-2800-10, -10W or -65 Fuel Grade 100/130 Engine limits Maximum continuous (neutral auxiliary) (5500 ft.) 44-5 1n. 9-. 2550 xpm (1675 h) 46.0 in.Ng.. 2550 rpm (1675 hp) Takeoff (5 ninutes) 2700 Ipm (2000 hp) Maximum continuous (low blower) (7000 ft.) 49.5 in.Hg•. 2550 rpm (1580 hp) (18,200 ft.) 49.5 in.Bg.. 2550 rpm (1625 hp) (high blower) (19,700 ft.) 50.0 in.Bg.. 2550 xpm (1535 hp) (23,000 ft.) 50.0 in.Bg.. 2550 rpm (1550 hp) Propellers Curtiss C542S-A56 hub; 714-7C2-12 blades, 12'2" diameter. Pitch stops (42 in. sta.) 28 degrees low; 58 degrees high; 89.5 degrees feather. Airspeed limits (See NOTE 2) Altitude Glide or Dive Speed o to 10,000 It. 420 mph 10,000 to 20,000 ft. 370 mph 20.000 to 30,000 ft. 300 mph Level flight or climb 300 mph Maximum weight 30,000 1bs. C.G. range Wing ferding Mageto 30 percent MAC (gear down) Datum MAC 126.3 inches I.E. MAC (0.00) cther operating limitations Army Technical Order No. AN01-15FB-1 Certification basis Limited Type Certificate No. 14 (CAR 9 effective 11/21/46) Production basis None may be produced under this approval Export eligibility Not eligible for a Certificate of Airworthiness for Export No equipment other than engines and propellers are specified. However, such equipment as required by Civil Air Regulations Part 43.30 for the particular operation authorized for NC aircraft must be installed. Also, any additional equipment necessary for the proper operation of the aircraft. In addition, the aircraft may incorporate such military equipment (except armament) as was originally incorporated in the type for military or naval Additional equipment may be installed as can be substantiated on the rasis that it presents no obvious hazard to safety. Weight and Balance Report including list of equpment included in the The equipment list need include no more than the following: equipment as defined under "Equipment" above. Additional items as may be reasonably considered removable and are so located or of such weight that their removal or addition could notice- ably affect the weight and balance of the aircraft. the aircraft structure need not te listed. The equipment list must prepared by the applicant for the approval of the certificating FAA representative, and in such form that it can be attached to the Operation Limitations. The following placards must be prominently displayed in the positions in full view of passengers: "This is a military tyre aircraft and under the Civil Air Regulations shall not be used for the carriage of pas- sengers or cargo for compensation or hire.'¿ In the cockpit in full view of the piloti "Do not extend full flaps arove 175 mph." "Do not operate landing gear above 175 mph." "Maximum landing gear emergency operation speed 130 mch." "Do not operate automatic pilot below 140 mph." The airspeed indicator shall be marked as follows: A red radial line at 420 mph. A green radial line at 300 mph. adial line to ree red radial line. (precautionary range) shall extend from the green The following statement must appear on the Operation Limitations: ¿This airplane must be operated at all times within the limitations set forth in Army Technical Order No. AN-01-15FB-1 except for limitations specifically out in Aircraft Specification AL-14 in which case the values given the Specification must be observed. A copy of Army Technical Order AN-01- 15FB-1 and Aircraft Specification AL-14 must be carried during flight." In all cases it will be the responsibility of the applicant to secure copies of the Army Technical Orders. The FAA does not have these documents available All structural repairs should be made in accordance with Army Technical AN-01-15FB-3 reference AN-01-15FB-2 for maintenance. If any repairs or modifications (other than those covered in the pertinent Army repair are made prior to and/or subsequent to NI certification, it is the responsibility of the owner to furnish sufficient evidence to a FAA repre- sentative to show that the modified airplane maintains the same degree airworthiness as the original. The FAA can give no technical assistance on such matters since complete structural data for NI aircraft are not required by Part 9 and therefore arenot available in the FAA. NOTE 5. Prior to obtaining certification for night operation, the following modifications to the exterior lighting must be made in order to comply with the general requirements of the Civil Air Regulations. Position Lights Wist Te replace type Atticat he as est typhe replaced by type certificated light assemblies. A-9 (AN-3033-10 or AN-3033-5 through -8) light assemblies are installed, they may be satisfactorily modified by painting the sand blasted portion of the inner surface of the AN-1042-3 and -4 covers black. The AN-3033-9 or AN-3033-1 through -4 light assemblies are satisfactory without modification. Tail - The Type D-1 (AN-3091-1 through -3) and the Type D-2 (AN-3092-1 through -3) light assemblies are unsatisfactory and must be replaced with type certificated unit. Position Light Installation The position lights shall be installed to comply with the requirements Parts 15.2 and 3.538. Position Light Circuit and Control The position lights (wing tips and tail) shall be controlled by one The circuit should be protected by its own fuse or circuit The individual wing tip and tail light switches with dim and bright positions shall be removed and the dimming resistors presently installed shall be disconnected. Other Exterior Lights With the exception of the landing lights, any other exterior lights are not required and may be removed if so desired. The list of mandatory changes required prior to original certification may be obtained from Federal Aviation Administration, Washington, D.C. 20590.