# TCDS 1H12: Boeing Defense & Space Group - Type: Type certificate data sheet - Status: Current - Holder: Boeing Defense & Space Group - Revision: 8 - Revised: May 15, 1971 - Product: Aircraft, Rotorcraft - Data sheet PDF: https://openairdocs.org/files/sha256/86/e8/86e8fce43e96fa4aa86830b7d9937de7531007dd3a4120737a3577581073dc75 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CF2E9F6C81009182852567150054ACF9.0001 - Page: https://openairdocs.org/tcds/1H12 ## Models (4) As the data sheet lists them. - 44B - 44A - 42A - 42B ## 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 Rev No. 8 - - - - Reformatted 10/93. DEPARTMENT OF TRANSPORTATION FEDERAL AVIATION ADMINISTRATION 1H12 Revision 8 VERTOL (H21B, H-21C) 42A, 42B 44A, 44B 15 May 1971 HELICOPTER SPECIFICATION NO. 1H12 Type Certificate Holder The Boeing Company Vertol Division Boeing Center P.O. Box 16858 Philadelphia, Pennsylvania 19142 I - Model 42A, 42B, 17-21 PLCH, Approved April 10, 1957; Model 44A, 44B, 17-21 PLCH, Approved February 26, 1958. (See NOTE 7 for military versions and Items 207 and 208 for float gears) The Model 44 series is similar to the Model 42 series except for rotor system, powerplant installation and minor structural changes. Engine Wright R1820-103 (See Item 101 for optional engines) Fuel 100/130 minimum grade aviation gasoline Engine limits Low Ratio Supercharger MP HP RPM IN HG ALT. Maximum Continuous 1275 2500 47.5 S.L. Maximum Continuous 1275 2500 46.0 3300 Take-Off (five min) 1425 2700 52.5 S.L. Take-Off (five min) 1425 2700 51.5 2300 (Straight line manifold pressure variation with altitude shown) Rotor Limits Maximum 330 Minimum 237. See NOTE 3 for required placard. Airspeed limits Maximum never exceed speed Models 42A, 42B: 107 knots CAS (110 knots IAS) Models 44A, 44B: 108 knots CAS (110 knots IAS) Center of Gravity See NOTE 3 for required placard. 1H12, Rev 8 2 C.G. range Models 42A, 42B: (319.0) to (348.0) at 14,000 lb. (319.0) to (360.5) at 11,500 lb. or less Models 44A, 44B: (319.0) to (350.0) at 14,350 lb. (Forward C.G. limit (318.0) at 13,400 lb. or less (318.0) to (360.5) at 11,500 lb. or less (Straight line variation between points given.) 1 4 0 0 0 1 1 5 0 0 42 A, 42 B A irc r aft W e igh t (lb . ) In ch es A ft of D atu m 1 4 3 5 0 1 1 5 0 0 4 4 A , 4 4 B A ir c ra ft W eig ht (lb. ) Inc h es A ft o f D a tum 1 3 4 0 0 Empty Weight C.G. Range None Maximum weight Models 42A, 42B: 14,000 lb. Models 44A, 44B: 14,350 lb. See NOTE 3 for restrictions above 8000 ft. Number of Seats 17-21 Pilot and copilot (84.0) Passengers: 42A, 44A: See Item 402 42B, 44B: 1 at (121), 1 at (132), 2 at (170), 2 at (204), 2 at (238), 2 at (272), 2 at (306), 2 at (340), 1 at (353). Maximum Baggage800 lb. (432) (44B only). See NOTE 5 for cargo capacity. Fuel capacity 300 gal. (See NOTE 6 for usable fuel) Oil capacity 42A, 42B: 26 gal. (540) 44A, 42B: 13 gal. (540) Rotor Blade Movements For rigging information refer to Maintenance Manual. Serial Nos. Eligible 1 and up Required Equipment In addition to the pertinent required basic equipment specified in (CAR 6, the following items of equipment must also be installed: 102, 103, 104, 105, 106, 107, 201(a), 202(a), 205(a), 206(a), 301(a), 302(a), 303, 401(a) for 42A and B, 401(b) for 44A and B. Specifications Pertinent to All Models Datum 100 Inches forward of forward rotor centerline Leveling Means Plumb bob from top of main cabin door frame (rear) to plate on door sill. Certification Basis Type Certificate No. 1H12 (CAR 6, January 15, 1951 and Amendments 6-1 through 6-7) The Model 44B is eligible for scheduled air carrier operation subject to the operations specifications. 3 1H12, Rev 8 Production basis None. Prior to original certification of each helicopter manufactured, a FAA representative must perform a detailed inspection for workmanship, materials, and conformity with the approved technical data and a check of flight characteristics. Equipment: Engine and Engine Accessories - Fuel and Oil System 101. Engines (a) Wright 977C9HD1 (same limitations as for R1820-103) (Not eligible for high blower operation) (b) Wright 977C9HD2 (same limitations as for R1820-103) (Not eligible for high blower operation) (c) Wright 977C9HD3 (same limitations as for R1820-103 (Not eligible for high blower operation) 102. Starter Model AN4116R3B 28 lb. (509) 103. Fuel pump, engine-driven, Model AN4101-1 2 lb. (502) 104. Fuel pump, boost, Pesco BR5D 9 lb. (391) 105. Oil cooler, engine, Harrison Radiator Model AP26AU24 24 lb. (507) 106. Oil cooler, transmission, Harrison Radiator Model AP22AU11-04 19 lb. (459) 107. Hydraulic pump, New York Airbrake Model 68261 8 lb. (102) Landing Gear 201. Two main wheel-brake assemblies, 24x7.7, Type VII (a) Goodyear 49 lb. (398) Wheel Assembly No. 531031 Brake Assembly No. 9530721 202. (a) Two main wheel 10-ply rating tires, 24x7.7, Type VII, with regular tubes 50 lb. (398) 205. Nose wheel assembly, 7.50-10, Type III (a) Goodyear Wheel Assembly No. 53075IM 9 lb. (103) 206. (a) Nose wheel 6-ply rating tire, 7.50-10, Type III, with regular tubes 13 lb. (103) 207. Salvage flotation gear installation in accordance with Vertol Dwg. No. 22L3438. Item 401(e) required for this installation (44 only). 208. Fixed flotation gear installation in accordance with Vertol Dwg. No. 04L3100A. Use act. wt. change Item 401(f) or (k) required with this installation. Electrical Equipment 301. Generator (a) 8 v, 400 amp. General Electric Type 121D882 Model 2CM76C4 61 lb. (511) 302. Battery (a) 28V, 36 amp. hr. Model AN3150A 80 lb. (365) 303. Two inverters (a) 250 V.A. AN3532-1 18 lb. (427) (b) 500 V.A. AN3535-1 24 lb. (427) 1H12, Rev 8 4 Interior Equipment 401. (a) CAA Approved Helicopter Flight Manual dated July 1, 1957. (This issue supersedes issued dated April 10, 1957) Required for Models 42A and B. (b) CAA Approved Helicopter Flight Manual dated February 26, 1958 revised October 13, 1960. Required for Models 44A and B. (c) Supplement No. 1 dated February 26, 1958, revised July 11, 1958 to CAA Approved Model 44 Helicopter Flight Manual. Contains operational information for Item 603. (d) Supplement No. 2 dated February 26, 1958, revised July 11, 1958 to CAA Approved Model 44 Helicopter Flight Manual. Contains operational information for Item 604. (e) Supplement No. 4 dated April 4, 1958 to CAA Approved Model 44 Helicopter Flight Manual. Required when Item 207 is installed. (f) Supplement No. 3 dated April 25, 1958, revised May 2, 1958 to CAA Approved Model 44 Helicopter Flight Manual. Required when Item 208 is installed. (g) Supplement No. 5 dated July 11, 1958, revised January 29, 1959 to CAA Approved Model 44 Helicopter Flight Manual. Contains operational information for Item 605. (h) Supplement No. 6 dated December 5, 1958 to CAA Approved Model 44 Helicopter Flight Manual. Required when Item 606 is installed. (i) Supplement No. 2 dated January 29, 1959 to CAA Approved Model 42 Helicopter Flight Manual. Required when Item 606 is installed. (j) Supplement No. 7 dated June 9, 1960 revised August 31, 1960 to CAA Approved Model 44 Helicopter Flight Manual. Required when Item 607 is installed. (k) Supplement No. 3 dated November 25, 1960 to CAA Approved Model 42 Helicopter Flight Manual. Required when Item 208 installed. 402. Bench seats installed in accordance with Vertol Dwg. No. 42E4020 (42A and 44A only) (a) Two place seat 6 lb. (170) (b) Three place seat 9 lb. (200) (c) Three place seat 9 lb. (220) (d) Three place seat 9 lb. (260) (e) Three place seat 9 lb. (279) (f) Three place seat 9 lb. (319) (g) Two place seat 6 lb. (352) Miscellaneous Equipment (not listed above) 601. Cargo sling installation (4500 lb.) in accordance with Vertol Dwg. No. 42E5501 See NOTE 4 for operating limitations. (Model 42A only) 602. Hoist installation in accordance with Vertol Dwg. No. 22E6030 (250 lb.), 22E6061 (400 lb.) or 22E6030 and 42E6078 (400 lb.) See NOTE 4 for operating limitations. (Model 42A only) 603. Cargo sling installation (5000 lb.) in accordance with Vertol Dwg. No. 42E5501. See NOTE 4 for operating limitations. (44A only) 604. Hoist installation (600 lb.) in accordance with Vertol Dwg. No. 08E6001. See NOTE 4 for operating limitations. (44A only) 605. Towing installation in accordance with Vertol Dwg. No. 04E7058 or 04E7059. See NOTE 4 for operating limitations. (44 only) 606. Pitch Damper installation in accordance with Vertol Dwg. No. 04C1900. Item 401(h) or 401(i) required with this installation. Use actual weight change. 607. Three (3) Axis Stability Augmentation System installed in accordance with Vertol Dwg. 04C0001. Item 401(j) required with this installation. (44 only). Use actual weight change. 5 1H12, Rev 8 NOTE 1. Current weight and balance report, including list of equipment included in certificated weight empty, and loading instructions must be in each helicopter at the time of original certification and at all times thereafter. When changes are made to the helicopter which affect weight and balances, refer to the Flight Manual for instructions. NOTE 2. Information essential to the proper maintenance of the helicopter including retirement time of critical components is contained in the maintenance manual provided with each helicopter. The values of retirement or service life cannot be increased without FAA engineering approval. NOTE 3. The following placards must be displayed in the instrument panel in full view of the pilot: (a) "This helicopter must be operated in compliance with the operating limitations specified in the CAA Approved Helicopter Flight Manual." (b) "Never exceed speeds. Variation of Vne with altitude and rpm. ALT Vne IAS Knots 2500 rpm 2400 rpm 2300 rpm S.L. 110 101 93 2000 97 89 81 4000 85 77 69 6000 73 65 - 8000 60 60 - 10,000 60 60 - Maximum gross weight above 8000 ft. is 12,500 lbs." NOTE 4. The cargo sling (Items 601, 603), hoist (Items 602, 604) and towing installation (Item 605) are special purpose equipment and are to be operated in accordance with the limitations described in CAR 8. Information concerning the operating limitations is also contained in the Helicopter Flight Manual. NOTE 5. The cabin floor area is structurally satisfactory for a uniformly distributed loading of 130 psf. when used for cargo purposes. NOTE 6. Fuel and oil capacities as indicated are total capacities. The fuel tank capacity includes unusable fuel of 3.6 gal. which must be included in the empty weight. NOTE 7. Prior to civil certification of any military version of the Model 42 series information regarding eligibility and modifications to be accomplished should be obtained from Vertol. ...END... ``` ## ADs (9, in force first) - [AD 68-06-01](https://openairdocs.org/ad/68-06-01): Transmission Drive Shaft · Boeing Defense & Space Group 42A, 42B, 44A and 5 more. Effective Mar 21, 1968 - [AD 64-27-04](https://openairdocs.org/ad/64-27-04): Wood Rotor Blade Root Socket · Boeing Defense & Space Group 42A, 42B, H21A and 3 more. Effective Dec 10, 1964 - [AD 64-19-06](https://openairdocs.org/ad/64-19-06): Spiral Bevel Pinion Gears · Boeing Defense & Space Group 42A, 42B, 44A and 4 more. Effective Aug 7, 1964 - [AD 60-23-05](https://openairdocs.org/ad/60-23-05): Bellcrank Assembly Retirement · Boeing Defense & Space Group 42A, 42B, 44A and 1 more. Effective Nov 8, 1960 - [AD 58-20-04](https://openairdocs.org/ad/58-20-04): Clutch Coupling Replacement · Boeing Defense & Space Group 42A, 42B, 44A and 1 more - [AD 59-09-04](https://openairdocs.org/ad/59-09-04): Fan Disc Assembly · Boeing Defense & Space Group 44A and 44B - [AD 59-19-02](https://openairdocs.org/ad/59-19-02): Engine Cooling Fan Assembly · Boeing Defense & Space Group 44A and 44B - [AD 59-20-01](https://openairdocs.org/ad/59-20-01): Spar Weight Assembly Straps · Boeing Defense & Space Group 44A and 44B - [AD 60-10-10](https://openairdocs.org/ad/60-10-10): Rotor Blade Retirement · Boeing Defense & Space Group 44A and 44B ## Registered aircraft by registry model (OpenAirDocs) - [Vertol 42A](https://openairdocs.org/model/vertol-42a): 0 aircraft (registry code 9420102) - [Vertol 42B](https://openairdocs.org/model/vertol-42b): 0 aircraft (registry code 9420104) - [Vertol 44A](https://openairdocs.org/model/vertol-44a): 0 aircraft (registry code 9420202) - [Vertol 44B](https://openairdocs.org/model/vertol-44b): 0 aircraft (registry code 9420204) ## STCs approved under this data sheet (6) - [STC SH3319NM](https://openairdocs.org/stc/SH3319NM): Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,. Precise Flight Inc - [STC SR02704SE](https://openairdocs.org/stc/SR02704SE): Installation and maintenance of the Sunspot 36 and 46 series lights. AeroLED's Holdings LLC - [STC SR00359BO](https://openairdocs.org/stc/SR00359BO): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights.. Whelen Aerospace Technologies - [STC SR02394AK](https://openairdocs.org/stc/SR02394AK): Replacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting system. Seaplanes North LLC - [STC SA4005NM](https://openairdocs.org/stc/SA4005NM): Precise Flight Inc. Pulselite Control System. Precise Flight Inc - [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer.. Electronics International --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.