- Holder
- Lycoming Engines
- Revision
- 7
- Revised
- June 23, 2010
- Status
- Current
- Product
- Engine
- Certification basis
- CAR 13
- Models
- 8
- Registered
- 48 aircraft
The release keeps the latest revision of each data sheet. Model names are as the data sheet lists them.
On this page
Models · 8
| Model | Also known as | Note |
|---|---|---|
| IGSO-540-A1F | Formerly Textron Lycoming, AVCO Corporation | |
| IGSO-540-B1A | Formerly Textron Lycoming, AVCO Corporation | |
| IGSO-540-A1H | Formerly Textron Lycoming, AVCO Corporation | |
| IGSO-540-A1C | Formerly Textron Lycoming, AVCO Corporation | |
| IGSO-540-A1A | Formerly Textron Lycoming, AVCO Corporation | |
| IGSO-540-B1C | Formerly Textron Lycoming, AVCO Corporation | |
| IGSO-540-A1D | Formerly Textron Lycoming, AVCO Corporation | |
| IGSO-540-A1E | Formerly Textron Lycoming, AVCO Corporation |
Airworthiness directives · 14
ADs whose products are models on this data sheet, matched by model and maker.
AD 2022-16-03Engine (RECIPROCATING)AD 2012-03-06Fuel servo diaphragmAD 2004-10-14Crankshaft gearAD 97-15-11Cylinder kitsAD 92-12-05Piston PinsAD 81-03-05Mixture Control Shaft AssemblyAD 79-04-05Regulator Diaphragm Stem AssemblyAD 78-23-10Center Body Bellows Seal AssemblyAD 73-23-01Piston Pin AssemblyAD 74-13-05Connecting Rod AssembliesAD 72-21-06Crankcase BearingsAD 69-25-08Reduction Gear AssembliesAD 66-06-03Connecting Rod AssembliesAD 62-23-05Propeller Shaft Oil Seal Rings
Registered aircraft
Registry models that point at this data sheet, with their registered aircraft.
Lycoming IGSO-540-B1A48 registered aircraftLycoming IGS0-540-A1A0 registered aircraftLycoming IGS0-540-A1C0 registered aircraftLycoming IGS0-540-A1D0 registered aircraftLycoming IGS0-540-A1E0 registered aircraftLycoming IGS0-540-A1F0 registered aircraftLycoming IGS0-540-A1H0 registered aircraftLycoming IGS0-540-B1A0 registered aircraftLycoming IGS0-540-B1C0 registered aircraft
STCs approved under this data sheet · 20
STC SE04349CHInstallation of SureFly electronic ignitionSTC SE01954SEInstallation of engine crankcase seal.STC SE03309CHInstallation of Engine Preheat Kit, p/n TSP6CYL-2927-115 for 115 volt application
See all 20 STCsWhat the data sheet says
From the PDF’s text layer, line by line: tables lose their columns. The PDF is the record.
Page No. 1 2 3 4
Rev No. 7 6 7 7
DEPARTMENT OF TRANSPORTATION
FEDERAL AVIATION ADMINISTRATION
1E7
Revision 7
Lycoming Engines
IGSO-540-A1A, -A1C
-A1D, -A1E, -A1F,
-A1H
IGSO-540-B1A, -B1C
June 23, 2010
TYPE CERTIFICATE DATA SHEET NO. 1E7
Engines of models described herein conforming with this data sheet (which is a part of Type Certificate No. 1E7) and other
approved data on file with the Federal Aviation Administration meet the minimum standards for use in certificated aircraft in
accordance with pertinent aircraft data sheets and applicable portions of the Civil Air Regulations/Federal Aviation Regulations
provided they are installed, operated and maintained as prescribed by the approved manufacturer's manuals and other approved
instructions.
Type Certificate Holder Lycoming Engines
An Operating Division of AVCO Corporation
Williamsport, Pennsylvania 17701
Type Certificate Holder Record AVCO Lycoming Div ., AVCO CORP., Williamsport, PA. transferred TC 284 to
Lycoming Engines, An Operating Division of AVCO Corporation on June 23, 2010
Model IGSO-540-A1A, -A1D -A1C, -A1E, -A1H -A1F -B1A, -B1C
Type 6H0A; reduction gear
ratio 77:120 - - - - - -
Rating
Maximum continuous, hp.,
r.p.m, in. Hg., at:
Critical pressure altitude 360-3200-41.7-10,500 360-3200-41.7-10,500 360-3200-41.7-10,500 360-3200-40.5-11,500
Sea level pressure altitude 360-3200-45.0-S.L. 360-3200-45.0-S.L. 360-3200-45. 0-S.L 360-3200-45.0-S.L.
Takeoff (5 min.), hp., r.p.m.,
in. Hg., at:
Critical pressure altitude 380-3400-43.5-10,500 380-3400-43.5-10,500 380-3400-43.5-10,500 380-3400-43.5-12,000
Sea level pressure altitude 380-3400-47.0-S.L. 380-3400-47.0-S.L. 380-3400-47.0- S.L. 380-3400-47.0-S.L.
Fuel (Minimum grade
aviation gasoline) 100/130 - - - - - -
Lubricating oil (Lubricants
should conform to the
specifications as listed or
later revision thereto.)
Lycoming Spec. No.
301-G*
- - - - - -
Bore and stroke. in. 5.125 X 4.375 - - - - - -
Displacement, cu. in. 541.5 - - - - - -
Supercharger gear ratio 11.27:1 - - - - - -
Compression ratio 7.30:1 - - - - - -
Weight (dry), lb. See NOTE 8 - - - - - -
C.G. location
From front face of thrust nut
face, in. 23.55 23.70 23.55 23.55
Off crankshaft center line, in. .50 above & .16 left .95 above & .16 left .50 above & .16 left .50 above & .16 left
Propeller shaft, SAE No.
AND 10152 30 spline - - - - - -
Crankshaft dampers
(torsional)
Five 3rd order and One
6th order - - - - - -
* See latest edition of Lycoming Service Instruction 1014
1E7 2
Model (cont'd) IGSO-540-A1A, -A1D -A1C, -A1E, -A1H -A1F -B1A, -B1C
Fuel injection See NOTE 8 - - - - - -
Ignition, dual See NOTE 8 - - - - - -
Timing, °BTC 25 - - - - - -
Spark plugs See NOTE 6 - - - - - -
Oil sump capacity dry sump - - - - - -
NOTES
1,2,3,4,5,6,7,8,9
1,2,3,4,5,6,8,9
1,2,3,4,5,6,8,9
1,2,3,4,5,6,7,8,9
"- -" indicates "same as preceding model"
"" indicates "does not apply"
Certification basis:
Regulations and Amendments
Model (s)
Date of Application
Date Type
Certificate No. 1E7
Issued/Revised
CAR 13 Effective June 15, 1956
As Amended By 13-1, 13-2, & 13-3 IG SO-540-B1A March 4, 1960 June 17, 1960
-A1A March 14, 1961 September 22, 1961
-A1B November 29, 1961 December 19, 1961
(Note No. 7)
-A1C March 16, 1962 May 31, 1962
13-4 -B1B November 13, 1963 December 20, 1963
(Note No. 7)
-A1D February 8, 1965 March 22, 1965
-B1C February 8, 1965 March 22, 1965
-A1E August 10, 1965 August 20, 1965
-A1F June 7, 1966 July 11, 1966
-A1H August 19, 1974 August 29, 1974
Production basis: Production Certificate No. 3
NOTE 1. Maximum permissible temperatures:
Cylinder head (bayonet type thermocouple) 475° F (except 500°F for -A1A, -A1C, -A1H models)
Cylinder base 315°F (See NOTE 9)
Oil inlet 235°F
NOTE 2. Fuel pressure limits - p.s.i. Emergency
M i n . Max. Min. Max.
For Simmonds injectors (-B1A, -B1C)
Series 580 - P/N 580056-B -2 +15 +9 +15
Inlet to injector
Integral supply pump
Series 582 - P/S's 582025 & 582026 -2.5 +24 +9 +35
Inlet to injector
Integral supply pump
Integral supply pump to injector +9 +35 +9 +35
For PAC (formerly Bendix) injector
Inlet to injector +17 +35
Oil pressure limits - p.s.i. Normal Operation
Min. Max. Idle
-A1D, -A1E, -A1F 65 85 25
-A1A, -A1C, -A1H 55 85 25
-B1A, -B1C 65 85 35
3 1E7
NOTE 3. The following accessory provisions are incorporated:
-A1A, -A1D, Maximum Torque Maximum Overhang
-A1C, -A1E, -B1A Rotation Faci ng Speed Ratio in. -lb. Moment
Accessory A1F, -A1H -B1C Drive Pad to Crankshaft Cont Static in. - lb.
Starter X X C 1.000:1 12,000 300
Generator X X C 2.600:1 500 2,200 400
Vacuum Pump X X CC 1.083:1 200 800 25
Hydraulic Pump X X C 1.083:1 400 1,650 175
Tachometer X X CC .500:1 7 50
Propeller
governor X X C .779:1 125 1200 25
Fuel pump ** X C 1.000:1 25 450 25
"C" - Clockwise, "CC" - Counter clockwise
** - Fuel pump pad supplied only on engines w ith PAC (formerly Bendix) Fuel Injector.
X - Standard
NOTE 4. These engines incorporate provisions for absorbing pr opeller thrust in both tractor and pusher type installations.
NOTE 5. The above models incorporate additional characteristics as follows:
IGSO-540 Models Characteristics
-A1A Basic model - six-cylinder horizonta lly opposed air cooled, supercharged geared
drive dry sump engine with side mounted accessories. Incorporates internal piston
cooling oil jets. Has PAC* RS-10FB1 fuel injection system and new supercharger air
inlet housing and supporting brackets.
-A1C Same as -A1A has straight through inlet housing between injector and supercharger.
-A1D Similar to -A1A except ha s TCM+ S6RN-1208 and S6RN-1209 magnetos.
-A1E Similar to -A1C has TC M+ S6RN-1208 and S6RN-1209 magnetos.
-A1F Same as -A1D excep t has no PAC* modulator unit.
-A1H Same as -A1E except does not incorporate the PAC* modulator unit.
-B1A Same as -A1A except has updraft exhaust cooling and Simmonds type 580 fuel
injection system.
-B1C Similar to -B1A except has TCM+ S6RN-1208 and S6RN-1209 magnetos.
* PAC formerly Bendix
+TCM formerly Bendix
NOTE 6. Spark plugs: See latest revision of Lycomi ng Service Instruction No. 1042 for approved equipment.
NOTE 7. The IGSO-540-A1B and -B1B engine models were canceled from Engine Type Certificate No. 1E7 on
March 21, 1963 and March 22, 1965 respectively. Th ere were no production models of these engines.
1E7 4
NOTE 8. IGSO-540- Models Weight (dry), lb. Fuel Injection Ignition, dual
-A1A 540 RS10-FB1+ S6RN-604, S6RN-600#
-A1C 539 * (-A1C) RS10-FB1+ S6RN-604, S6RN-600#
-A1D 530 RS10-FB1+ S6RN-1209, S6RN-1208#
-A1E 529 RS10-FB1+ S6RN-1209, S6RN-1208#
-A1F 530 RS10-FB1+ S6RN-1209, S6RN-1208#
-A1H 541 RS10-FB1+ S6RN-1209, S6RN-1208#
-B1A 532 Simmonds 580 Series, P/N 580056-B S6RN-604, S6RN-600#
Simmonds 582 Series, P/N 582025 or
582026
-B1C 522 Simmonds 580 Series, P/N 580056-B S6RN-1209, S6RN-1208#
Simmonds 582 Series, P/N 582025 or
582026
+ PAC (Precision Airmotive Co rporation llC) formerly Bendix
# TCM formerly Bendix
* The fuel vent line between the fuel injector system a nd the aircraft fuel tank must incorporate a flow restriction
within pressure limits of 20 to 28 p.s.i. at 30 p.p.h. fuel vapor vent flow for the IGSO-540-A1C only.
NOTE 9. This parameter dispensed with, for engines of thes e models equipped with internal piston cooling oil jets.
.....END.....