33, 36, 36 Bonanza and Debonair IO-520

Manufacturer: Beechcraft
Aircraft Model(s): 33, 35, and 36 Bonanza & Debonair
Applicable Engines: IO-520-B, IO-520-BA, IO-520-BB
PDF: Bonanza and Debonair IO-520

Base Kit Includes:

Applicable Models:
35-C33A, E33A, E33C, F33A, F33C, S35, V35, V35A, V35B, 36, A36 (with IO-520 only)

Specifications:
80 inch diameter 3-bladed, aluminum hub propeller
2400 hour / 6 year TBO
80 pounds (prop & spinner)
diameter reduction allowable to 78 inches

Replaces:
McCauley C23 – 84 inch dia. 2-bladed prop
66 pounds (prop & spinner)
Oil fill requirement per AD 89-26-08
Diameter reduction allowable to 82 inches
1200 hours / 5 year TBO

McCauley C76 – 80 inch dia. 3-bladed prop
70 pounds (prop & spinner)
Diameter reduction allowable to 78.5 inches
1200 hours / 5 year TBO

McCauley C406 – 80 inch dia. 3-bladed prop
68 pounds (prop & spinner)
Diameter reduction allowable to 78.5 inches
2000 hours / 5 year TBO

Hartzell A3VF – 80 inch dia. 3-bladed steel hub prop
94 pounds (prop & spinner)
400 hour inspection per AD 68-13-2
Clamp inspection/replacement per AD 85-14-10
Blade retention system inspection AD 97-18-02
Diameter reduction allowable to 78.25 inches

Advantages:
vs. McCauley 2-bladed model
Lower noise
Better take-off and climb performance
Improved appearance
Less blade erosion
Longer TBO
Current design (Mc threaded design obsolete)

vs. McCauley 3-bladed models
Greater diameter reduction allowable
Longer TBO
Current design (Mc threaded obsolete)
Lower price than current design C406
No RPM or life limitations

vs. Hartzell 3-bladed steel model
Lighter weight
Current design, less costly to maintain
Eliminates all repetitive inspections

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