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Gearboxes Sold Separately
current as of Feb. 11, 2007


Type  B Gearbox                                                           $811.00
Available in   2.0:1,   2.238:1,   or   2.58:1
Includes Propeller Crush Plate, Mounting Hardware, Magnetic Drain, and Vent Plug. 
Fits Rotax 377, 447, 503, 532, and 582 
Crankcase Must Have 8-Bolt Mounting Provision. 
For Earlier Cases with 4-Bolt Provision, Order Type A
Inertia limit of propeller is 3,000 kgcm²
Type A Gearbox                                                           $811.00
Comes equipped the same as Type B, above, but also includes: 4-bolt Adapter.
Type A can also be configured for use with Machined case 277's. 
Inertia Limit of Propeller is 3,000 kgcm²
To determine inertia of a propeller, please refer to:  SI-11-1991 Propeller Mass Moment Inertia
Type C Gearbox                                                        $1,314.00
Available in   2.62:1,   3.0:1, 3.47:1 or 4:1
Includes Propeller Crush Plate, Mounting Hardware, Magnetic Drain, and Vent Plug. 
Fits Rotax 377, 447, 503, 532, and 582 
Crankcase Must Have 8-Bolt Mounting Provision. 
Inertia Limit of Propeller is 6,000 kgcm²
Type E Gearbox                                                       $1,877.00
Available in   2.62:1,   3.0:1, 3.47:1 or 4:1
Includes Propeller Crush Plate, Mounting Hardware, Magnetic Drain, and Vent Plug. 
Fits Rotax 377, 447, 503, 532, and 582 
Crankcase Must Have 8-Bolt Mounting Provision. 
Inertia Limit of Propeller is 6,000 kgcm²
Type B, C, and E Gearboxes can be mounted with the offset turned Up (towards sparkplugs, Down (towards engine base) ,or Sideways (requires special consideration of oil fill & vent
Type A mounting to early 3 bolt cases can be accomplished by use of a special 3-bolt adapter
Type A Gearboxes can be mounted in Up or down configuration only using the standard 4-bolt  adapter 910 505
Type A Gearbox mounting on 277's is accomplished without adapter for "Down Configuration" but requires gear set with "short" drive gear. For "Up Configuration" the standard gear set is used but a 277 Up Drive Adapter (910 362 is required.