- Holder
- Lycoming Engines
- Revision
- 5
- Revised
- November 4, 2010
- Status
- Current
- Product
- Engine
- Certification basis
- Part 33
- Models
- 6
- Registered
- 82 aircraft
The release keeps the latest revision of each data sheet. Model names are as the data sheet lists them.
On this page
Models · 6
| Model | Also known as | Note |
|---|---|---|
| TO-360-C1A6D | Formerly Textron Lycoming, AVCO Corporation | |
| TO-360-A1A6D | Formerly Textron Lycoming, AVCO Corporation | |
| LTO-360-A1A6D | Formerly Textron Lycoming, AVCO Corporation | |
| LTO-360-E1A6D | Formerly Textron Lycoming, AVCO Corporation | |
| TO-360-F1A6D | Formerly Textron Lycoming, AVCO Corporation | |
| TO-360-E1A6D | Formerly Textron Lycoming, AVCO Corporation |
Airworthiness directives · 20
ADs whose products are models on this data sheet, matched by model and maker.
AD 2026-04-11Engine (Reciprocating)AD 2023-09-09Exhaust Turbine System (Recip)AD 2012-03-07Carburetor
See all 20 ADsRegistered aircraft
Registry models that point at this data sheet, with their registered aircraft.
Lycoming T0-360 series74 registered aircraftLycoming TO-360-C1A6D4 registered aircraftLycoming (L)TO 360 series1 registered aircraftLycoming LTO-360-E1A6D1 registered aircraftLycoming TO-360-A1A6D1 registered aircraftLycoming TO-360-E1A6D1 registered aircraftLycoming LTO-360-A1A6D0 registered aircraftLycoming TO-360-F1A6D0 registered aircraft
STCs approved under this data sheet · 24
STC SE01954SEInstallation of engine crankcase seal.STC SE02352CHInstallation of Challenger cleanable oil filter assemblySTC SE00939WIInstallation of B&C Specialty Products Model BC 315-( ) Starter on Lycoming engines.
See all 24 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
Rev. No. 5 5 5
Reformatted 8/94.
DEPARTMENT OF TRANSPORTATION
FEDERAL AVIATION ADMINISTRATION
E26EA
Revision No. 5
Lycoming Engines
TO-360-A1A6D, -C1A6D, -E1A6D, -F1A6D
LTO-360-A1A6D, -E1A6D
November 04, 2010
TYPE CERTIFICATE DATA SHEET NO. E26EA
Engines of models described herein conforming with this data sheet (which is a part of type certificate No. E26EA) 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 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 Division, AVCO CORP. Williamsport PA transferred TC E26EA to
Lycoming Engines, An Operating Division of AVCO Corporation on November 04, 2010
Model Lycoming TO-360-A1A6D: TO-360-C1A6D: TO-360-E1A6D
LTO-360 A1A6D TO-360-F1A6D LTO-360-E1A6D
Type 4HOA Direct Drive Turbocharged
Rating (See NOTE 4)
Max. continuous, hp., r.p.m., in. Hg. at:
Standard density critical alt. ft. 198-2575-40.0-10,000 207-2575-42.0-10,000 180-2575-36.5-12,000
Standard density 5000 ft. alt. 200-2575-40.0-5,000 — —
Standard density sea level alt. ft. 196-2575-40.0-S.L. 210-2575-42.0-S.L. —
Takeoff (5 min.), hp., r.p.m., in. Hg. at:
Standard density critical alt. ft. 198-2575-40.0-10,000 207-2575-42.0-10,000 180-2575-36.5-12,000
Standard density 5000 ft. alt. 200-2575-40.0-5,000 — —
Standard density sea level alt. ft. 196-2575-40.0-S.L. 210-2575-42.0-S.L. —
Fuel (minimum grade aviation
gasoline) 100 or 100LL - - - -
Lubricating oil (lubricants should See Latest Edition - - - -
conform to the specification as of Lycoming Service
listed) Instruction No. 1014
Bore and stroke, in. 5.125 x 4.375 - - - -
Displacement, cu. in. 361.0 - - - -
Compression Ratio 8.0:1 7.30:1 8.0:1
Weight (dry), lb. 326 343 315
C.G. location (with starter and alternator installed)
From front face of prop. mounting
flange, in. 15.50 15.27 15.94
Off crankshaft C.L., in. 0.975 below & 0.10 left 0.53 below & 0.88 right 0.75 below & 0.41 left
Propeller shaft flange, SAE No. Type 2 modified - - - -
Propeller shaft flange, SAE No. Type 2 modified - - - -
Crankshaft dampers (torsional) one 6.3 order - - - -
one 8th order - - - -
Carburetion* Marvel-Schebler** HA-6 - - - -
Turbocharger Kelly Aerospace+ 301E10-2 - - Kelly Aerospace+ TA04
Model Lycoming (cont'd) TO-360-A1A6D: TO-360-C1A6D: TO-360-E1A6D
LTO-360 A1A6D TO-360-F1A6D LTO-360-E1A6D
Ignition, dual TCM#:
D4RN-3021 (LTO): D4LN-3021 D4LN-3021 (LTO):
D4LN-3021 (TO) D4RN-3021 (TO)
Ignition timing°BTC 20 - - - -
Spark plugs See NOTE 6 - - - -
Oil sump capacity, qt. 8 - - - -
Usable oil, qt. 20° nose up or down 6 - - - -
NOTES 1 through 10 - - - -
* See latest edition of Lycoming SI 1523 for alternate approved Carburetors
** Marvel-Schebler formerly Volare, Precision Airmotive Corporation, Facet Aerospace, and Borg Warner Corp.
+ Kelly Aerospace, formerly AiResearch, formerly Rajay
# TCM formerly Bendix
CERTIFICATION BASIS:
Regulations & Amendments
FAR 33, 33-1 effective February 1, 1965, As Amended by 33-2 & 33-3
Date Type Certificate
Model Date of Application E26EA Issued/Revised
TO-360-A1A6D March 6, 1973 January 9, 1974
LTO-360-A1A6D March 6, 1973 January 9, 1974
TO-360-C1A6D December 10, 1975 February 9, 1976
TO-360-F1A6D January 30, 1979 March 23, 1979
TO-360-E1A6D July 19, 1979 September 28, 1979
LTO-360-E1A6D July 19, 1979 September 28, 1979
Production basis: Production Certificate No. 3
NOTE 1. Maximum permissible temperatures:
Cylinder head (well type thermocouple) 500°F
Cylinder base See NOTE 5
Oil inlet 245°F
Carburetor inlet air (max) 160°F (-A1A6D)
All other models 350°F
Exhaust gas (turbo inlet at location shown on Lycoming
Drawing No. 63441) 1650°F (-E1A6D)
All other models 1725°F
Magneto (at coil core) 225°F
NOTE 2. Pressure limits: Minimum Maximum
Fuel pressure limits (above carburetor
inlet air pressure) at inlet to carburetor
-A1A6D 0.5 p.s.i. 8 p.s.i.
-C1A6D; -F1A6D 15 p.s.i. 30 p.s.i.
-E1A6D 13 p.s.i. 30 p.s.i.
Fuel pressure limits at inlet to engine fuel pump
-A1A6D; -C1A6D; -E1A6D; -F1A6D -2 p.s.i. 30 p.s.i.
Manifold pressure limits: -A1A6D — 40 in. Hg.
-C1A6D; -F1A6D — 43.75 in. Hg.
Exhaust back pressure limit (at turboc harger exhaust flange) — 0.5 in. Hg.
Oil pressure limits:
Normal (-A1A6D; -E1A6D ) 60 p.s.i. 95 p.s.i.
Normal (-F1A6D; -C1A6D) 50 p.s.i. 95 p.s.i.
Idle 25 p.s.i. —
Idle (-E1A6D) 15 p.s.i. —
Starting and warm-up — 100 p.s.i.
Starting and warm-up (-E1A6D ; -F1A6D; -C1A6D) — 115 p.s.i.
3 E26EA
NOTE 3. The following accessory provisions are available:
Accessory
TO-360
-A1A6D
-F1A6D
-C1A6D
LTO-360
-A1A6D
TO-360
-E1A6D
LTO-360
-E1A6D
Rotation
Facing
Drive Pad
Speed Ratio
To
Crankshaft
Maximum
Torque
in.-lb.
Maximum
Overhang
Moment
in.-lb.
TO LTO Cont. Static
Starter * * * * CC C 16.556:1 — 450 150
Alternator * * * * C CC 3.250:1 60 120 175
Vacuum Pump ** ** — — CC C 1.300:1 70 450 25
Vacuum Pump — — * * CC C 1.313:1 70 450 25
Hydraulic Pump ** ** C CC 1.300:1 100 800 40
Hydraulic Pump ** ** C CC 1.300:1 180 2200 150
Tachometer * * * * C CC .500:1 7 50 5
Propeller Governor ** ** — — C CC .895:1 125 1200 40
Propeller Governor — — * * CC C 1.000:1 125 1200 40
Fuel Pump * * * * Plunger .500:1 — — 10
* Standard "C" Clockwise
**Optional "CC" Counter-Clockwise
NOTE 4. Engine models -A1A6D, -C1A6D , -F1A6D are equipped with a Kelly Aerospace (formerly Rajay) Model 301E10-2
turbocharger mounted as an integral part of the engine. Performance data for these engines are presented on Lycoming
Curve Number 13247 (-A1A6D) and 13280 (-C1A6D) (-F1A6D) Engine Model -E1A6D is equipped with Kelly
Aerospace (formerly AiResearch) TA04 turbocharger mounted as an integral part of the engine. Performance data for
this engine is presented on Lycoming Curve No. 13369.
These turbocharger models meet the containment require ments of FAR 33-27 and do not require external protection.
NOTE 5. Cylinder base temperature limits are not applicable to e ngine models which incorporate internal piston cooling oil jets.
NOTE 6. Spark plugs approved for use on these engines are listed in the latest revision of Lycoming Service Instruction No. 1042.
NOTE 7. These engines incorporate the following similarities or differences:
Model
TO-360-A1A6D - Basic model-four cylinder air c ooled, horizontally-opposed, direct drive, carbureted,
turbocharged, engine incorporating internal piston cooling oil jets.
LTO-360-A1A6D - Similar to TO-360-A1A6D excep t has counter-clockwise (reverse) rotation.
TO-360-C1A6D - Similar to TO-360-A1A6D except pow er increased, lower compression ratio and carburetor
located after the turbocharger instead of before the turbocharger.
TO-360-F1A6D - Same as TO-360-C1A6D except has provisi ons for a rear type mounting (long type 1.12" conical
mount).
TO-360-E1A6D - Same as 0-360-E1A6D except equi pped with Kelly Aerospace (formerly AiResearch) TA402
turbocharger, 8.0:1 compression ratio pistons, piston cooling oil jets and high pressure fuel
pump.
LTO-360-E1A6D - Similar to TO-360-E1A6 D except has counter-clockwise rotation.
NOTE 8. These engines incorporate provisions for absorbing propeller thrust in both tractor and pusher installations.
NOTE 9. Starters and alternators approved for use on these engi nes are listed in the latest revision of the Lycoming Service
Instruction No. 1154.
NOTE 10. All models equipped with an impulse coupling magneto, may use both magnetos for starting.
....END....