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RESTRICTED   T.O. NO. 02-35G

SECTION III
SPECIFIC OPERATING INSTRUCTIONS

ENGINE: R-1820-87

[[5 Columned Table]]
| CONDITION | FUEL PRESSURE LB/IN^2 | OIL PRESSURE LB/IN^2 | OIL TEMP °C | COOLANT TEMP°C| 
| --- | --- | --- | --- | --- |
| DESIRED | 14 | 70 | 50-70 |   |
| MAXIMUM | 16 | 75 | 85 |   |
| MINIMUM | 12 | 65 |   |   |
| IDLING |   | 15 |   |   |

MAX. PERMISSIBLE ENGINE OVER SPEED: 2760 R.P.M.

MAX. ALLOWABLE OIL CONSUMPTION AT:
NORMAL RATED POWER   14 QTS./HR.
MAXIMUM CRUISING   10 QTS./HR.
MINIMUM SPECIFIC FUEL FLOW   5 QTS./HR.

FUEL GRADE   100 OCTANE

[[12 Columned Table]]
| OPERATING CONDITION | HORSE POWER | R.P.M. | MAN PRESS (IN HG) | PRESSURE ALTITUDE (IN FEET) | BLOWER CONTROL POSITION | MIN. F/A RATIO | FUEL FLOW GAL/HR | MAX. CYL. HD. TEMP. °C | REMARKS |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| TAKE-OFF | 1200 | 2500 | 45.5 | S.L. | Low | Always Use Low Blower | Auto Rich | - | 144 | 260 | 5 min. duration only. |
| MILITARY RATED POWER | 1200 1000 | 2500 2500 | 43.0 44.5 | 4200' 14,200' | Low High | 10,000 | Auto Rich | - | 144 127 | 260 | 5 min. duration only. |
| NORMAL RATED POWER (100%) | 1000 900 | 2300 2300 | 37.2 40.0 | 6900' 15,200' | Low High | 10,500 | Auto Rich | - | 112 114 | 232 |   |
| MAX. CRUISING (75%) | 750 675 | 2020 2020 | 30.5 32.0 | 6900' 15,200' | Low High | 14,000 | Auto Rich | - | 63 66 | 205 |   |
| DESIRED CRUISE (67%) | 670 603 | 2020 2020 | 28.0 29.0 | 6900' 15,200' | Low High | 16,500 | Auto Lean | - | 53 55 | 205 |   |
| DESIRED CRUISE (60%) | 600 540 | 1940 1940 | 26.0 26.5 | 6900' 15,200' | Low High | 17,500 | Auto Lean | - | 46 47 | 205 |   |
| CRUISE FOR MIN. SPECIFIC FUEL FLOW | 285 307 332 360 390 | 1300 1300 1300 1300 1500 | 23.0 22.0 21.0 20.5 22.0 | S.L. 5000 10,000 15,000 20,000 | Low Low Low Low High | 17,000 | Auto Lean | - | 24 26 28 30 33 | 205 |   |

REFER TO T.O. NO 00-10 FOR DEFINITION OF EACH OPERATING CONDITION   
MAXIMUM PERMISSIBLE CONTINUOUS HORSE POWER

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