Bell212

DEPARTMENT OF TRANSPORTATION
FEDERAL AVIATION ADMINISTRATION

H4SW
Revision 25
BELL
212, 412,
412EP, 412CF
March 25, 2003
TYPE CERTIFICATE DATA SHEET NO. H4SW
This data sheet which is part of Type Certificate No. H4SW prescribes conditions and limitations under which the product for
which the type certificate was issued, meets the airworthiness requirements of the Federal AviationRegulations.
Type Certificate Holder:

Bell Helicopter Textron
Subsidiary of Textron, Inc.
Fort Worth, Texas 76101

I - Model 212 (Transport Helicopter-Category B), Approved 30 October 1970-(Transport Category A), Approved
30 June 1971. See Note 7.
Engines

Pratt and Whitney Canada Corp. (Formerly Pratt & Whitney Canada, Inc., Pratt & Whitney
Aircraft of Canada Ltd. and United Aircraft ofCanada, Ltd.) PT6T-3 or PT6T-3B Twin Power
Section Turboshaft (Ref. Note 5 on Type Certificate Data Sheet No. E22EA).

Fuel

Avjet type fuels conforming to ASTM D-1655, type A, A-1, or B; or MIL-T-5624, Grade JP-4
(NATO F-40) or JP-5 (NATO F-44); or MIL-T-83133, Grade JP-8 (NATO F-34).
Torque
Per engine
lb-ft
(%)

Power Turbine
Speed - rpm
(%)
Maximum Minimum

Gas Generator
Speed- rpm
(%)

Gas

Temperature
°C

Engine Operating Limits For PT6T-3 Engines
Normal Operation
Takeoff (5 minutes)

515
(100)

(1) (2)

33,000
(100)

(3)

32,000
(97)

38,100
(100)

810

450
(87.5)

(1)

33,000
(100)

(3)

32,000
(97)

38,100
(100)

765

One Engine Inoperative (Emergency):
(4)
30 Minutes
738
(71.8)

33,000
(100)

(3)

32,000(97)

38,100
(100)

810

33,000
(100)

(3)

32,000
(97)

38,100
(100)

765

515
(100)

(1) (2)

33,000
(100)

(3)

32,000
(97)

38,400(5)
(100.8)

810

(1)

33,000
(100)

(3)

32,000
(97)

38,400(5)
(100.8)

765

Maximum Continuous

Continuous

(4)

657
(63.9)

Engine Operating Limits For PT6T-3B Engines
Normal Operation:
Takeoff (5minutes)
Maximum Continuous

450
(87.5)

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H4SW

Torque
Per engine
lb-ft
(%)

Power Turbine
Speed - rpm
(%)
Maximum Minimum

Gas Generator
Speed - rpm
(%)

Gas
Temperature
°C

one Engine Inoperative (Emergency):
(4)

33,000
(100)

(3)

32,000
(97)

39,000(6)
(102.4)

850

815
(79.4)

(4)

33,000
(100)

(3)

32,000
(97)

38,400(5)(100.8)

822

(4)

33,000
(100)

(3)

32,000
(97)

38,400(5)
(100.8)

765

2-1/2 Minutes

815
(79.4)

30 Minutes
Continuous

657
(63.9)

(1) On transmission torque scale.
(2) See Note 26.
(3) 100% (33,000 rpm) corresponds to 6600 rpm engine output shaft speed.
(4) On engine torque scale.
(5) 38,800 rpm (101.8%) with Gage P/N 212-075-037-113.
(6) 39,400 rpm(103.4%) with Gage P/N 212-075-037-113.
Rotor limits

Power Off
Maximum 339 rpm
(Tach reading 104.5%)
Minimum 294 rpm
(Tach reading 91%)

Power On
Maximum 324 rpm
(Tach reading 100%)
Minimum 314 rpm
(Tach reading 97%)

Airspeed limits

Decrease VNE 3 knots (3.5 mph) per 1,000 feet (above 3,000 feet Hd)
C.G. range

(a) Longitudinal C.G. limits
VFR Configuration
(+134.0) to (+142.0)at 11,200 lb
(+130.0) to (+144.0) at 8,800 lb
(+130.0) to (+144.0) at 6,500 lb
(+134.0) to (+144.0) at 5,300 lb

IFR Configuration
(+134.0) to (+142.0) at 11,200 lb
(+132.0) to (+143.0) at 10,000 lb
(+132.0) to (+144.0) at 8,800 lb
(+132.0) to (+144.0) at 5,900 lb
(+134.0) to (+144.0) at 5,300 lb
Above limits for VFR operation; aft limit
(+142.5) for IFR operation

3 of 18

H4SWStraight line variation between points given. See figure below:

(b) Lateral C.G. limits - Category B and VFR Configuration
4.7 in. left of centerline
6.5 in. right of centerline
Category A and IFR Configuration
+3.5 in. left and right of centerline
Empty weight C.G. range

See Chapter 8, Model 212 Maintenance Manual.

Maximum weight

11,200 lb. See Note 4 for external cargo...