# TCDS 4A17: Lockheed Martin Aeronautics Company

- Type: Type certificate data sheet
- Status: Current
- Holder: Lockheed Martin Aeronautics Company
- Revision: 5
- Revised: February 11, 2013
- Product: Aircraft, Large Airplane
- Certification basis: CAR 4b
- Registered aircraft: 1, by the registry models matched to it (OpenAirDocs)
- Data sheet PDF: https://openairdocs.org/files/sha256/3d/b3/3db3094664430f82c6306f06441aee05b872a5aec6c0095d09977e8b5842fe92
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/29DC03E0FC3A90B886257B10005861E7.0001
- Page: https://openairdocs.org/tcds/4A17

## Models (1)

As the data sheet lists them.

- 1649A-98

## What the data sheet says

From the PDF's text layer, line by line; tables lose their columns. The PDF is the record.

```text
Page No. 1 2 3 4 5 6 7 8 
Rev. No. 4 3 3 3 3 5 3 3 
 
FEDERAL AVIATION AGENCY 
 
4A17 
Revision 5 
LOCKHEED 
1649A-98 
 
February 11, 2013 
 
AIRCRAFT SPECIFICATION NO. 4A17 
 
This data sheet which is part of Type Certificate No. 4A17 prescribes conditions and limitations under which the product for 
which the type certificate was issued meets the airworthiness requirements of the Civil Air Regulations. 
 
Type Certificate Holder  Lockheed Martin Aeronautics Company  
   86 South Cobb Drive 
   Marietta, Georgia  30063-0655 
 
 
Type Certificate Holder Record  Lockheed Aircraft Corporation 
   California Division 
   Burbank, California 
 
 
I - Model 1649A-98, Approved March 29, 1957 
 
 Engines 4 Wright Compound 988TC18EA-2 with .355 reduction gear ratio and 6.52:1 turbo  
   drive ratio. 
 
 Fuel  Grade 115/145 (See NOTE 4 for low gear fuel) 
 
 Engine limits Low impeller ratio 6.46:1 
  (See NOTE 4 for Maximum continuous: 
  limits with 100/130  (Sea level) 51.0 in.Hg., 2650 rpm (2860 hp) 
  and 108/130 grade fuel)  (Straight line manifold pressure variation with alt. to 4800 ft.) 
     49.5 in.Hg., 2650 rpm (2920 hp) 
   Takeoff (2.75 minutes): 
    (Sea level) 58.5 in.Hg., 2900 rpm (3400 hp) 
    (Straight line manifold pressure variation with alt. to 4000 ft.) 
     56.0 in.Hg., 2900 rpm (3400 hp) 
   High impeller ratio 8.67:1 
    Maximum continuous: 
    (10,800 ft.) 48.5 in.Hg., 2600 rpm (2415 hp) 
    (Straight line manifold pressure variation with alt. to 16,400 ft.) 
     47.0 in.Hg., 2600 rpm (2450 hp) 
 
 Airspeed limits Vno (Normal Operation) 300 mph (261 knots) 
   (Calibrated) Above 18,800 ft. reduce speed 6 knots for each additional 1000 ft. 
   Vne (Never exceed) 338 mph (294 knots) 
   NOTE.  The C.A.S. is 294 knots at sea level increasing to 299 knots C.A.S. at 13,300 ft. 
   Above 13,300 ft. reduce speed 6 knots for each additional 1000 ft. 
   Va  (Maneuvering) 227 mph (197 knots) 
   Vf  (Takeoff position 80%) 213 mph (185 knots) 
   Vf  (Landing position 100%) 184 mph (160 knots) 
   Vlo (Landing gear operation) *213 mph (185 knots) 
   Vle (Landing gear extension) 213 mph (185 knots) 
   Landing light extension 213 mph (185 knots) 
   Mach. No. - Never exceed .57  
   *Main landing gear when used as  a "speed brake" 270 mph (234 knots)

C.G. range See NOTE 1(b) for require d loading and gear retraction moment. 
 
 Weight Landing Fwd. Limit  Aft Limit  
Condition (lbs.) Gear Sta. %MAC Sta. %MAC 
Takeoff 158,700 Down 683.4 22.2 - - 
 160,000 Down 693.5 28.5 699.1 32.0 
 116,000 
(or less) 
Down 671.9 15.0 699.1 32.0 
Landing 123,000 Down 673.9 16.2 699.1 32.0 
 116,000 Down 671.9 15.0 699.1 32.0 
 105,000 Down 671.9 15.0 699.1 32.0 
   80,000 Down 671.9 15.0 683.1 22.0 
(AFT limit is straight line from 32.0% at 105,000 lbs. to 22.0% at 80,000 lbs.) 
Cruising 158,700 Up 679.8 19.9 702.3 34.0 
Flight 160,000 Up 693.5 28.5 702.3 34.0 
 116,000 Up 667.2 12.0 702.3 34.0 
 (or less)      
For a graphic illustration of C.G. limits, see Limitations Portion, Section 1, or  
Airplane Flight Manual, Lockheed Report No. 11560. 
 
 Weight limits Landing 123,000 lbs. 
 (See NOTE 4 for Takeoff 160,000 lbs. with auto-feat hering (Dump valves are required. 
  limits with low  
  grade fuel) Maximum zero fuel weight 117,000 lbs. 
   See NOTE 1(e) for fuel loading. 
   3-Engine ferrying 118,000 lbs.  See C AA Approved Airplane Flight Manual for  
   applicable restrictions. 
 
 Minimum crew 3. Pilot and Co-pilot at  +190 and Flight Engineer at +226. 
 
 Passengers Maximum 99 (CAR 4b.362 as amended to 12-31-53).  See Approved Weight and  
   Balance Report for actual number and location. 
 
 Baggage Maximum capacity of internal  baggage and storage compartments: 
 
   
Vol. 
(cu. ft.) 
Max. Floor 
Loading, 
psf 
 
Cap. 
(lbs.) 
 
Compt. 
C.G. 
(A) Fwd. cargo compartment   1860 405 
 fwd. portion F.S. 333 to 490 93 70   
(B) Fwd. cargo compartment   2920 549 
 aft portion F.S. 490 to 610 146 70   
(C) Aft cargo compartment   2540 855 
 fwd. portion F.S. 815 to 930 127 70   
(D) Aft cargo compartment   3800 1017 
 aft portion F.S. 930 to 1140 190 70   
 Coat closet L.H. (entrance)   320 1001 
 Coat closets R.H. (aft)   425 1154 
 Coat closets L.H.(aft)   165 1164 
 Wash water   500 907 
   Galley area between Stations 930 and 1014 a nd 10" from airplane centerline R.H. side  
   is structurally satisfactory for a maximum total load of 2300 pounds, with a maximum  
   unit floor loading of 70 lbs. per sq. ft. 
 
   Galley storage area between Station 930 and 950 and 10" from airplane centerline, L.H.  
   side is structurally satisfactory for a ma ximum total load of 500 lbs. with a maximum  
   unit floor loading of 90 lbs. per sq. ft.

3 4A17 
 Fuel capacity See NOTE 1(c) regarding "Unusable Fuel and System Oil." 
 
 Total Tank Cap  Usable Tank Cap  
Tanks 5 and 6 (inboard) 1370 gal. ea. 16440 lbs. 1365 gal. ea. 16380 lbs. (+720) 
Tanks 2 and 3 (middle) 1385 gal. ea. 16620 lbs. 1375 gal. ea. 16500 lbs. (+711) 
Tanks 1 and 4 (outboard) 1344 gal. ea. 16128 lbs. 1335 gal. ea. 16020 lbs. (+701) 
Tank 7 (center) 1646 gal.  9876 lbs . 1625 gal .   9810 lbs . (+723) 
    Totals 9844 gal. 59064 lbs. 9785 gal. 58710 lbs.  
 
 Oil capacity See Note 1 (c) regarding "Unusable Fuel and System Oil." 
   Hamilton Standard Propeller Installation: 
    2 inboard tanks (45 gal. ea.) 675 lbs. (+616) 
    2 outboard tanks (45 gal. ea.) 675 lbs. (+648) 
    1 auxiliary tank (66 gal.) 495 lbs. (+642) 
   Curtis Propeller Installation: 
    2 inboard tanks (47.5 gal. ea) 712.5 lbs. (+616) 
    2 outboard tanks (47.5 gal. ea) 712.5 lbs. (+648) 
    1 auxiliary tank (66 gal.) 495 lbs. (+642) 
 
 Serial Nos. eligible 1649A/1001 through 1649A/1048. 
 Required equipment In addition to the pertinent require d basic equipment specified in CAR 4b, the following  
   items of equipment must be installed: 
   Items 1(a), (b) or (c); 101(a) or (b); 103(a); 104(a); 105(a); 106(a); 107(a); 200(a)  
   or (b); 201(a); 202(a); 203(a); 204(a); 205(a); 206(a); 300(a) or (b); 301(a); 302(a);  
   303(a); 400; 440; 441(a); 508(a). 
 
Specifications Pertinent to All Models 
 Datum 774.8 in. forward of jig point.  (Screw head on bottom surface of wing at B.L. 41.52  
   and rear wing beam.) 
 MAC 159.6 inches.  Leading edge of MAC at Sta. 648. 
 Leveling means Leveling plate under fu selage floor at ref. Sta. 657. 
 
 Control surface movements Main surfaces (boost on) - Elevator 39° up 20° down 
    Aileron 23° up 16° down 
    Rudder 29° right 29° left 
   Tabs (main surfaces in neutral) 
    Elevator 23° up 23° down 
    Aileron 17° up 17° down 
    Rudder 26° right 26° left 
   Flaps 38° total angular travel. 
 
 Certification basis Type Certificate No. 4A17 (C AR 4b as amended to December 31, 1953, including: 
    (See NOTE 5 for  CAR 4b.353(e)(1) and (e)(2) as amended by CAB waiver, Order No. S-702  
    eligibility under  dated August 24, 1955; 
    regulations prior to CAR 4b.611(b) as amended by CAB waiver, Order No. S-719 dated December 22, 
    March 13, 1956)  1955 
   CAR 4b.612(b)(5) as amended by CAB waiver, Order No. S-792 dated 
    March 21, 1957; and the following amendments: 
   Amendment 4b-1, (dated May 18, 1954), complete. 
   Amendment 4b-2, (dated August 25, 1955), para graphs 3, 4, 5, 7, 8, 9, 10, 19, 20,  
    23, 24, 25, 26, 27, 28, 29, 33, 34, 35, 36, 37, 38, 41, 43, 44, 49, 50, 51, 52. 
   Amendment 4b-3, (dated March 13, 1956), paragr aphs 3, 4, 7, 8, 9, 11, 12, 13, 14, 15,  
    16, 17, 21 through 33, 39, 41,  44, 45, 46, 54, 55, 60, and 62.) 
   The Model 1649A has been examined and found to comply with the Standards of  
   Transport Category A of Annex 8 to the Convention on International Civil Aviation,  
   entitled "Airworthiness of Aircraft," as amended to April 1952. 
   Compliance with the ditching require ments of CAR 4b has been demonstrated. 
   Maximum approved operating altitude 25,000 ft.

Production basis Production Certificate No. 600. 
 Export eligibility Eligible for export to all countries , subject to the provisions of MOP 2-4, except as  
   follows:    
    Canada - Landplane eligible 
    Skiplane - not eligible 
 
Equipment:  
 
Propellers and Propeller Accessories (except De-Icing Equipment)  
 1 (a). (1) 4 Propellers - Ham.  Std. hubs 43H60, blades 6993B-4, 
    hydromatic reversible with synchrophase 3267 lbs. (+518) 
     Diameter: Max. 16' 10", min. allowable for repairs 16' 5-16", 
     no further reduction permitted. 
    Pitch setting at 72 in. sta.:  Low pitch +18.5°, reverse pitch -17.0°.  
   Propeller feathering pitch setting mu st prevent engine windmilling (+83.0°) 
   Operation with auto-feathering inoperative is not approved. 
   (2) 4 Propeller spinners - Ham. Std. 507945 116 lbs. (+517) 
   (3) 4 Feathering pumps, Adel 28359-10 90 lbs. (+623) 
   (4) 4 Governors - Ham. Std. 5U21-5  66 lbs. (+540) 
   (5) 4 Propeller control box assemb lies Ham. Std. 518416A 11 lbs. (+207) 
   (6) 4 Brush block bracket asse mblies Ham. Std. 501355 34 lbs. (+521) 
   (7) 1 Synchrophaser - Electro-mech anical Ham. Std. 501210 34 lbs. (+193) 
   (8) 1 Synchrophaser - Electr onic Ham. Std. 510801 20 lbs. (+140) 
  (b). (1) 4 Propellers - Ham. Std. hubs 43H60, blades 6993B-4, 3258 lbs. (+518) 
    hydromatic reversible with synchronizing 
    Diameter: Max.  16' 10", min. allowable for repairs 16' 5-1/16", 
      no further reduction permitted.   
    Pitch settings at 72 in. sta.: Low pitch +18.5°, reverse -17.0°  
    Propeller feathering pitch setting mu st prevent engine windmilling (+83.0°). 
    Operation with auto-feathering inoperative is not approved. 
   (2) 4 Propeller spinners - Ham. Std. 507945 116 lbs. (+517) 
   (3) 4 Feathering pumps, Adel 28359-10 90 lbs. (+623) 
   (4) 4 Governors - Ham. Std. 5U21-5 66 lbs. (+540) 
   (5) 4 Propeller control box assemb lies Ham. Std. 518416A 11 lbs. (+207) 
   (6) 4 Brush block assemblie s Ham. Std. 519709 32 lbs. (+521) 
   (7) 1 Synchronizer - Ham. Std. 322518 40 lbs. (+193) 
 
  (c). (1) 4 Propellers - Curtiss hub C634S-C 602, blades 958-1C4-2, electric 2822 lbs. (+518) 
    reversible with synchronizing. 
    Diameter:  Max. 16' 10".  Di a. reduction for repairs not permitted. 
    Pitch settings at 72 in. sta.:  Lo w pitch +20.3°, reverse pitch -15.3°  
    Propeller feathering pitch setting mu st prevent engine windmilling (+86-1/2°) 
    Operation with auto-feathering inoperative is not approved. 
   (2) 4 Propeller spinners - Curtiss #156752 170 lbs. (+517) 
   (3) 4 Alternators - Curtiss #155413 16 lbs. (+542) 
   (4) 1 Synchronizer - Curtiss #15610Z 42 lbs. (+195) 
   (5) 2 Voltage boosters - Curtiss #1554-2-A 40 lbs. (+574) 
 
Engines and Engine Accessories - Fuel and Oil System 
 100. Fuel Dump Valves (See NOTE 3 regarding use of dump valves) 
  (a) 6 Whittaker Type 116305 38 lbs. (+756) 
 101. Unusable fuel and system oil (See NOTE 1(c) for definition). 
  (a) For -98 P.P. install. with  Ham. Std. propeller Item 1(a)  
   consisting of 1 auxiliary oil tank. 
   (1) Total unusable fuel 443 lbs. (+714) 
    (a) System fuel 89 lbs. (+680) 
    (b) Total tank unusable fuel 354 lbs. (+721) 
     (difference of total tank and usable quantity given 
     under Fuel capacity) 
   (2) System oil 702 lbs. (+580)

5 4A17 
  (b) For -98 P.P. install. with Curti ss electric propeller Item 1(c) consisting  
   of 1 auxiliary oil tank. 
   (1) Total unusable fuel 443 lbs. (+714) 
    (a) System fuel 89 lbs. (+680) 
    (b) Total tank unusable fuel (difference of total  354 lbs. (+721) 
     tank and usable quantity given under Fuel capacity) 
   (2) System Oil 540 lbs. (+588) 
 102. 4 Starters 
  (a) Eclipse Type 36E004 113 lbs. (+605) 
  (b) J&H Type JH17230 107 lbs. (+605) 
 103. 4 Oil Coolers 
  (a) AiResearch Type 87161 237 lbs. (+594) 
 104. 4 Engine-driven fuel pumps 
  (a) Thompson Type TF-2100   16 lbs. (+593) 
 105. 7 Auxiliary fuel pumps 
  (a) Romec Type RR-11530-D 88 lbs. (+745) 
 106. 4 De-icer or vacuum pumps 
  (a) Pesco Type 3P-485  40 lbs. (+602) 
 107. 4 Hydraulic pumps 
  (a) New York Air Type 65WC06001-5 or -6 86 lbs. (+602) 
  (b) Vickers Type AA-61573-L-3  100 lbs. (+602) 
 108. 1 auxiliary oil pump  
  (a) Pesco Type 012634-010-04  10 lbs. (+664) 
 
Landing Gear 
 200. 2 Main gear shock struts 
  (a) LAC Part No. 661088-11 1422 lbs. (+729) 
  (b) LAC Part No. 661088-13 1434 lbs. (+729) 
 201. Nose gear shock strut 
  (a) Cleveland Type 9616 392 lbs. (+194) 
 202. 4 main wheel-brake assemblies 
  (a) 17.00-20, Type III 
   (1) Goodyear  
  (a) 4 wheels Part No. 9541026 495 lbs. (+729) 
  (b) 4 brake assemblies Part No. 9560364 704 lbs. (+729) 
 203. 4 Main gear tires, Type III tubeless 
  (a) 17.00-20, 24 ply rating nylon  (use actual wt.) (+729) 
 204. 2 Nose wheel assemblies 
  (a) 34 x 9.9 Type VII 
   (1) Goodrich Part No. 3-913 79 lbs. (+186) 
 205. 2 Nose gear tires 
  (a) 34 x 9.9 Type VII tubeless 10 pl y rating nylon (use actual wt.) (+186) 
 206. 2 Main Landing gear drag strut dampers 
  (a) LAC Dwg. No. 661090-1 205 lbs. (+712) 
 
Electrical Equipment 
 300. Generators 
  (a) 6 D.C. Eclipse Type 30E02  381 lbs. (+601) 
  (b) 4 D.C. Eclipse Type 30E02  254 lbs. (+606) 
 301. Batteries 
  (a) 2 batteries 24 volts 36 amp. hr. 152 lbs. (+283) 
 302. Inverters 
  (a) 3 Eclipse Type 1518-1(F or later) 110 lbs. (+363) 
  (b) 1 Eclipse Type 32E03 62 lbs. (+481) 
 303. Alternators 
  (a) 2 Pioneer Type 1632-1 12 lbs. (+580)

Interior Equipment 
 400. CAA Approved Airplane Fli ght Manual.  (A Manual containing information required for the  
  Airplane Flight Manual may be carried in lieu thereof in aircraft operated under the provisions  
  of Parts 40, 41 and 42 of the Civil Air Regulati ons.)  The following table identifies the airplane  
  flight manuals and revisions thereto currently approved for each airplane: 
 
     Report Date of Issue 
   Model   No. or Revision  
   1649A-98 L.R. 11560 May 29, 1958 
 
 401. Surface control equipment 
  (a) 1 Elevator booster Assembly LAC Dwg. No. 476741-7 or -9 112 lbs. (+1406) 
  (b) 1 Rudder booster Assembly LAC Dwg. No. 476742-3 or -5 112 lbs. (+1406) 
  (c) 1 Aileron booster Assembly LAC Dwg. No. 476740-5 or -7 112 lbs. (+788)  
 420. 2 cabin superchargers 
  (a) AiResearch Type 57970 205 lbs. (+653) 
 421. 2 Cabin supercharger driv e shaft and disconnect assemblies 
  (a) LAC Dwg. No. 470093-8 and 644384-3 59 lbs. (+624) 
 422. 2 Cabin heaters 
  (a) Surface combustion Type D77A63 48 lbs. (+820) 
 423. 2 Cabin recirculating fans 
  (a) Joy Type X702-164 60 lbs. (+853) 
 424. Cabin Refrigerati on Installation including 
  (a) 2 Cooling units AiResearch Type 205520-1 or -2 62 lbs. (+720) 
  (b) 2 Heat exchanger cooling blowers, AiResearch Type 49240-1 or -2 36 lbs. (+702) 
  (c) 2 Primary heat exchangers AiResearch Type 19658 70 lbs. (+684) 
  (d) 2 Secondary heat exchangers AiResearch Type 81118-1 92 lbs. (+720) 
  (e) 2 Water separators AiRes earch Type 84160-1-2 24 lbs. (+779) 
 440. Emergency ladder or emergency chute 
  See Approved Master Equipment List for a pproved locations, types, weights and arms  
  for various configurations. 
 441. Fixed Oxygen system 
  (a) TWA installation in accordance with LAC Dwg. No. 478278 including: 
   (1) 2 Kidde Type No. 870326 cylinders 125 lbs. (+215) 
 
De-icing Equipment 
 500. Wing de-icer boots  
  (a) Goodrich Type 22 Pneumatic  254 lbs. (+659) 
 501. Empennage de-icer 
  (a)  Goodrich Type 21 and 22 Pneumatic 127 lbs. (+1351) 
 502. Nose radome de-icer boot 
  (a) Goodrich Type 21 Pneumatic 23 lbs. (+105) 
 508. Windshield Wipers 
  (a) 1 Dual Alco installed in accordance with LAC Dwg.  10 lbs. (+184) 
   No. 326072-500 or 326072-502 
 
NOTE 1. (a) Current weight and balance including list of equi pment included in certificated empty weight, and loading  
    instructions, must be in each aircraft at the time of original certification and at all times thereafter (except in  
    the case of air carrier operators having an approved weight control system).  See approved Master Equipment  
    List (LAC Report 11866) for list of approved items of  equipment in addition to those items listed in this  
    specification. 
 
   (b) The airplane must be loaded so that the C.G. is within the specified limits at all times, with the effects of fuel  
    use, gear retraction, and movement of crew a nd passengers from their assigned positions being considered  
    (retraction of the main and nose gears causes the C. G. to move forward; a value of 208,000 in. lbs. is a  
    satisfactory approximation of the change in moment for all approved wheel items). At takeoff, the airplane  
    shall be loaded so that, due to fuel use, the C. G. cannot move forward of 15% MAC.  A 34% aft C.G. limit  
    (gear retracted) for cruising flight may be used wh en the effect of passenger and crew movements from their  
    assigned positions has been taken into account.

7 4A17 
   (c) "Unusable Fuel and System Oil"  and all hydraulic fluid must be included in the certificated weight empty.   
    (See Item 101) 
    Unusable fuel  is that quantity of fuel in the system and in the tanks which is unavailable to the engines under  
    critical flight conditions as de fined in CAR 4b.416.  This unusable fuel, includes "system fuel" which is  
    defined as the quantity required to fill the system and tanks to the tank outlet level when the airplane is in the  
    ground level attitude.  The fuel gages are calibrated with  the unusable fuel level as the zero datum.  The total  
    amount of fuel (Unusable in cluded in Item 101) is as follows: 
 
      Total Usable Fuel Total Unusable Fuel 
     Model  (lbs. @ 6 lbs/gal.    (lbs. @ lbs/gal.)   
     1649A-98       58710         443 
 
   System oil  is that amount of oil required to fill the oil systems and tanks to the tank outlets to the engines.  The  
   propeller feathering oil is not consider ed usable oil, and, when applicable, is included in "System Oil."  The oil  
   tank capacities shown in this specification include only th e usable oil for which the tanks are placarded.  Dipstick  
   readings indicate th e amount of usable oil. 
 
      With Oil 
      Transfer Prop. Item Usable System 
    M o d e l   System Installed Oil (lbs.) Oil (lbs.)  
    1649A-98    Yes 1(a) or (b)   1845    702 
         Yes 1(c)   1920    540 
 
  (d) Fuel dumping. When fuel dump va lves (Item 100) are installed per NOTE 3, the amount of usable fuel, over  
     and above the unusable fuel listed in Item 101, remaining after dumping is as follows: 
 
       Gallons remaining in tanks   
    Model   Tank 7 1 & 4 2 & 3 5 & 6 
    1649A   203 each 219 each 4 each 
 
  (e) Fuel loading and usage.  
   (1) Fuel must be distributed and used in a manner th at will permit compliance with the lateral balance limitations  
    in the CAA Approved Airplane Flight Manual. 
   (2) For minimum fuel at any takeoff weight, refer to  fuel loading and usage chart in the pertinent Approved  
    Operating Manual. 
   (3) Fuel in Tank No. 7 will reduce the operational zero fu el weight by the amount of fuel therein at takeoff. 
   (4) By reason of structural limitations, the follo wing fuel quantities shall not be exceeded during landing  
    operations: 
     
    Model  Tanks 5, 6 & 7 2 & 3 1 & 4  
    1649A-98  No limitations 825 gal. ea. 825 gal. ea. 
 
 NOTE 2. The following placards must be installed:  
   (a) In full view of the pilots and flight engineer: 
    (1) "This airplane must be fueled and the fuel us ed in accordance with instructions contained in the CAA  
     Approved Airplane Flight Manual." 
    (2) "This airplane shall be operated in accordan ce with the Operating Limitations in the CAA Approved  
     Airplane Flight Manual." 
   (b) On the forward side of door at Station 260: 
    "This door must be locked ope n during all take-offs and landings." 
 
NOTE 3. Fuel dump valves (Item 100) must be installed for operation of the airplane at weights in excess of maximum  
   landing weight.  Refer to CAA Appr oved Airplane Flight Manual for limitations and cautionary procedures to be  
   observed during the dumping of fuel.

NOTE 4. The Wright compound 988TC18EA-2 engine is eligib le for use with grade 100/130 and 108/135 fuel at the  
   following ratings with automatic rich mixtur e settings only for all operations including cruise: 
 
   With low impeller gear ratio 6.46:1 
    Maximum continuous: 
     (Sea level) 44.0 in.Hg., 2600 rpm (2380 hp) 
     (Straight line manifold pressure variation with altitude to 9400 ft.) 
      41.5 in.Hg., 2600 rpm (2450 hp) 
    Takeoff (2.75 minutes): 
     (Sea level) 51.0 in.Hg., 2900 rpm (2880 hp) 
     (Straight line manifold pressure variation with altitudes to 8500 ft.) 
      48.0 in.Hg., 2900 rpm (2950 hp) 
 
   With high impeller ratio 8.67:1 
    Operation with grade 100/130 and 108/135 fuel is not permitted. 
 
   When using the above grade fuel and power rati ngs, the airplane weight limitations are as follows: 
    Landing: 123,000 lbs. 
    Takeoff: 139,500 lbs. at fwd. C.G., 
      141,700 lbs. at aft C.G. 
    Maximum zero fuel weight: 117,000 lbs. 
 
NOTE 5. Airplanes modified for cargo operation and inco rporating structural changes described  by LAS  
   Drawings 4009985, 4012584, 4012632 through 4012638, and 4012755 are eligible for certification under  
   the Certification basis on page 2 but excluding the provisions of Amendments 4b-3 dated March 13, 1956.   
   This provides eligibility for operation of the aircraft under SR-411B. 
 
 
 
 
 
 
.....END.....
```

## ADs (16, in force first)

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- [AD 64-08-02](https://openairdocs.org/ad/64-08-02): Wing Upper Milled Skin Panel · Lockheed Martin Aeronautics 1649A-98. Effective May 11, 1964
- [AD 64-03-03](https://openairdocs.org/ad/64-03-03): Blades · Boeing DC-6, DC-6A, DC-6B and 26 more. Effective Mar 1, 1964
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- [AD 62-21-04](https://openairdocs.org/ad/62-21-04): Wing Lower Skin · Lockheed Martin Aeronautics 1649A-98. Effective Nov 2, 1962
- [AD 61-03-04](https://openairdocs.org/ad/61-03-04): Fuel Vent System · Lockheed Martin Aeronautics 1649A-98. Effective Feb 13, 1961
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- [AD 57-03-03](https://openairdocs.org/ad/57-03-03): Micronic Filter Cover · Boeing DC-7, DC-7B, DC-7C and 16 more
- [AD 58-13-03](https://openairdocs.org/ad/58-13-03): Aileron Control Valve Modification · Lockheed Martin Aeronautics 1649A-98
- [AD 58-21-01](https://openairdocs.org/ad/58-21-01): Bulkhead Corrosion Inspection · Lockheed 1049-54, 1049C-55, 1049D-55 and 10 more
- [AD 59-20-02](https://openairdocs.org/ad/59-20-02): Fuel Use Placard and Flame Arrestors · Lockheed Martin Aeronautics 1649A-98
- [AD 60-08-04](https://openairdocs.org/ad/60-08-04): Rudder Torque Tube · Lockheed 1049-54, 1049B-55 (Navy R7V-1), 1049C-55 and 6 more
- [AD 60-10-04](https://openairdocs.org/ad/60-10-04): Fuselage Aft Pressure Bulkhead · Lockheed 1049-54, 1049B-55 (Navy R7V-1), 1049C-55 and 12 more

## Registered aircraft by registry model (OpenAirDocs)

- [Lockheed 1649A-98](https://openairdocs.org/model/lockheed-1649a-98): 1 aircraft (registry codes 5262202, 5262204)

## STCs approved under this data sheet (17)

- [STC SA4503NM](https://openairdocs.org/stc/SA4503NM): Remove original cloth covering and install Ceconite covering. Ceconite Division of Poly-Fiber Inc.
- [STC SA01967WI](https://openairdocs.org/stc/SA01967WI): Use of GAMI G100UL High Octane Unleaded Avgas. General Aviation Modifications Inc.
- [STC SA836WE](https://openairdocs.org/stc/SA836WE): Hydro-Aire Mark II anti-skid braking system to reduce required landing field length.. Alaska Airlines Inc
- [STC SA1351WE](https://openairdocs.org/stc/SA1351WE): Replace existing fabric on wings, fuselage, empennage, and/or control surfaces, with Ceconite101 material. (262A Series -12). Ceconite Inc
- [STC SA907WE](https://openairdocs.org/stc/SA907WE): ONE ONLY STC, SN 1018: Installation of Cargo/Passenger combination interiors.. Alaska Airlines Inc
- [STC SA495WE](https://openairdocs.org/stc/SA495WE): Applicable only to L-1649A/02 aircraft converted to cargo in accordance with STC No SA4-1295 and SA4-1402.  Install 3 1800 Gal KC97 fuselage tanks for the carriage of petroleum fuels as cargo.. Alaska Airlines Inc
- [STC SA280WE](https://openairdocs.org/stc/SA280WE): Passenger interior installation - 95 or 98 passengers, 106 occupants maximum.. World Airways Inc
- [STC SA4-1295](https://openairdocs.org/stc/SA4-1295): Convert aircraft to cargo configuration. Lockheed Aircraft Service Inc.
- [STC SA4-1350](https://openairdocs.org/stc/SA4-1350): Cover rudders and trim tabs with Ceconite 101 material. Cooper Engineering Corporation
- [STC SA4-1215](https://openairdocs.org/stc/SA4-1215): Convert to cargo aircraft, including installation of front and rear doors, cargo floors, cargo lining, and miscellaneous items.. Lockheed Aircraft Service Co
- [STC SA4-1402](https://openairdocs.org/stc/SA4-1402): Reinforcing structure.. Lockheed Aircraft Service Co
- [STC SA258WE](https://openairdocs.org/stc/SA258WE): One Type III emergency exit.. Lockheed Aircraft Service Co
- [STC SA259WE](https://openairdocs.org/stc/SA259WE): Interior installation.. Lockheed Aircraft Service Co
- [STC SA466CE](https://openairdocs.org/stc/SA466CE): Fairchild A-100 cockpit voice recorder.. Trans World Airlines Inc
- [STC SA546WE](https://openairdocs.org/stc/SA546WE): Modification of crew entrance door window mechanism.. Gamco Precision
- [STC SA83SO](https://openairdocs.org/stc/SA83SO): Oil separator B-300-1.. Air Carrier Eng Service Inc
- [STC SA4-608](https://openairdocs.org/stc/SA4-608): Engine mount core assemblies DE-643-1 on Wright TC18 Series engines.. Dow-Elco Inc

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