Spark Ignition Aircraft Engine Endurance Test of Aviation ... - FAA

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22 Corrected Power and Average EGT vs Air-to-Fuel Ratio at 24-in. Hg and 2400 rpm 22 23 Corrected Power and Average EGT vs Equivalence Ratio at FT and 2700 rpm 23 24 Corrected Power and Average EGT vs Equivalence Ratio at 28-in. Hg and 2600 rpm 24 25 Corrected Power and Average EGT vs Equivalence Ratio at 26-in. Hg and 2600 rpm 24 26 Corrected Power and Average EGT vs Equivalence Ratio at 24-in. Hg and 2400 rpm 25 27 Equivalence Ratio vs Power Setting 26 28 Exhaust Valve Recession 29 29 Top of Piston Face of Cylinder 1 After 9.3 Engine Hours 30 30 Intake Valve Face of Cylinder 1 After 9.3 Engine Hours 30 31 Exhaust Valve Face of Cylinder 1 After 9.3 Engine Hours 31 32 Top of Piston Face of Cylinder 1 After 59.2 Engine Hours 31 33 Bottom of Piston Face and Cylinder Wall for Cylinder 1 After 59.2 Engine Hours 32 34 Exhaust Valve Face for Cylinder 1 After 59.2 Engine Hours 32 35 Intake Valve Face for Cylinder 1 After 59.2 Engine Hours 33 36 Posttest Crankshaft Front Main Journal 33 37 Posttest Crankshaft Middle Main Journal 33 38 Posttest Crankshaft Rear Main Journal 33 39 Posttest Crankshaft Connecting Rod Journal Cylinder 1 34 40 Posttest Crankshaft Connecting Rod Journal Cylinder 2 34 41 Posttest Crankshaft Connecting Rod Journal Cylinder 3 34 42 Posttest Crankshaft Connecting Rod Journal Cylinder 4 34 43 Posttest Front Main Crankshaft Bearing 34 44 Posttest Middle Main Crankshaft Bearing 34 45 Posttest Rear Main Crankshaft Bearing 34 v
46 Posttest Connecting Rod Bearing Cylinder 1 35 47 Posttest Connecting Rod Bearing Cylinder 2 35 48 Posttest Connecting Rod Bearing Cylinder 3 35 49 Posttest Connecting Rod Bearing Cylinder 4 35 50 Posttest Camshaft Front Main Bearing 35 51 Posttest Camshaft Middle Main Bearing 35 52 Posttest Camshaft Rear Main Bearing 35 53 Posttest Camshaft Lobes 36 54 Posttest Crankcase Halves 36 55 Posttest Piston Pin Bores—Cylinders 1 Through 4 (Left to Right) 37 56 Posttest Piston Sides—Cylinders 1 Through 4 (Left to Right) 37 57 Posttest Piston Faces—Cylinders 1 Through 4 (Left to Right) 37 58 Posttest Piston Pin 37 59 Posttest Combustion Chamber 38 60 Posttest Valve Tappet Body Faces 38 61 Posttest Intake Valves 1 Through 4 (Left to Right) 39 62 Posttest Exhaust Valves 1 Through 4 (Left to Right) 39 63 Posttest Rocker Arm Showing Normal Wear 40 64 Posttest Rocker Arm Bushing Showing Slight Scoring 40 65 Posttest Connecting Rod Hot Spot Damage 40 66 Posttest Rocker Arm Pin 41 67 Posttest Oil Pump Housing and Oil Pump Gears 41 68 Posttest Accessory Housing 41 vi
Page 1 and 2: DOT/FAA/AR-06/43 Office of Aviation
Page 3 and 4: 1. Report No. DOT/FAA/AR-06/43 4. T
Page 5: LIST OF FIGURES Figure Page 1 Oil F
Page 9 and 10: LIST OF ACRONYMS 100 low-lead 100LL
Page 11 and 12: more fuel volume flow. Future tests
Page 13 and 14: At the completion of the test, the
Page 15 and 16: The engine was installed in a test
Page 17 and 18: Table 4. Parameter Settings for End
Page 19 and 20: Figure 1. Oil Filter Inspection Fig
Page 21 and 22: Figure 4. Corrected Power at 2700 r
Page 23 and 24: Figure 8. Corrected Power at 2300 r
Page 25 and 26: Figure 10. Corrected BSFC vs Fuel M
Page 27 and 28: Figure 12. Corrected Power and Aver
Page 31 and 32: Table 8 provides a summary of the e
Page 37 and 38: output from all six cylinders. Pist
Page 39 and 40: The oil filter was cut open and the
Page 41 and 42: Figure 29. Top of Piston Face of Cy
Page 43 and 44: Figure 33. Bottom of Piston Face an
Page 45 and 46: Figure 39. Posttest Crankshaft Conn
Page 47 and 48: The camshaft lobes, shown in figure
Page 49 and 50: Figure 59 shows a combustion chambe
Page 51 and 52: Figure 63. Posttest Rocker Arm Show
Page 53 and 54: Visual observation of the intake tu
Page 55 and 56: Future testing should address effec
Page 57 and 58:
Table A-2. Middle and Rear Main Cra
Page 59 and 60:
Table A-4. Valve Tappet Outer Diame
Page 61 and 62:
Table A-10. Top Piston Ring Side Cl
Page 63:
Table A-14. Intake Valve Seat Width
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Spark Ignition Aircraft Engine Endurance Test of Aviation ... - FAA

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