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Franklin / PZL Model 6A-350-C1R
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The New Franklin / PZL 6A-350-C1R 220 HP powerplant is the most powerful Franklin engine in production today. It is the latest of the six cylinder line that has been powering certified aircraft for well over 30 years. The 6A-350 is best known for its smoothness and excellent performance in high density altitude conditions.
The combination of high power and light weight makes the 6A-350 the perfect engine to upgrade the aircraft to a rebuild time. The same advantage makes them the powerplant of choice for STC conversions and the new breed of high performance experimental category aircraft being built today.
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Engine Specifications
General: |
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| Model |
6A-350-C1R |
| FAA Type Certificate No |
E9EA |
| Rated Horsepower |
220 / 205 @ 2800RPM * |
| Number of Cylinders |
6 |
| Displacement |
350 Cu. inches |
| Bore |
4.625 Inches |
| Stroke |
3.5 Inches |
| Engine Weight (Dry - Without Accessories) |
297 lbs. |
| TBO |
1500 Hours |
| Ignition: |
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Magnetos, Slick |
Model 6399 |
| Magnetos, Bendix |
S6RN - 21 |
| Ignition Timing, BTC, Both Magnetos |
28 - 32 degrees |
| Firing Order |
1, 4, 5, 2, 3, 6 |
| Spark Plugs |
18mm |
| Fuel System: |
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| Carburetor: Marvel Schebler |
MA-5 |
| Fuel - Minimum Octane - Aviation |
100/130 |
| Lubrication: |
| Wet Slump - Oil Capacity |
8.8 Qts. |
| Oil Grade, Above 41 Degrees Ambient Air |
SAE 40 or 50 |
| Oil Grade, Below 41 Degrees Ambient Air |
SAE 30 |
| Valve Clearance: |
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Valve Rocker Clearance With Lifters Bled Down And Engine Cold |
0.036 - 0.044 inch |
| Operating Limits: |
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| RPM - Maximum Limit |
2800 |
| RPM Idle |
750-950 |
| Cylinder Head Temp (Bayonet Thermocouple) |
392F |
| Oil Temperature - Maximum Inlet |
230F |
| Oil Pressure - Operating Range |
55-80 PSI |
| Oil Pressure - Idle |
25 PSI |
| Fuel Pressure (Carb. Inlet) |
0.5 - 8.5 PSI |
* - 220 HP SAE, 205 HP Metric
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