Rolls-Royce Eagle 22

by Barry Hares

 

The main details of the full-size engine are as follows:
Type of engine: Geared, pressure liquid cooled, flat H, sleeve valve engine with two-speed, two-stage liquid cooled supercharger, driving contra-rotating propellers through reduction gearing.
Bore 5.4”
Stroke 5.125”
Swept volume 2,816 cu in (46 litres)
Compression ratio 6.5:1
Supercharger ratios 3.0:1 & 3.67:1
Reduction gear ratio 0.298:1
Maximum power 3,200 HP at 18 psi boost
Carburetor indirect fuel injection

For a 1/5th-size engine, this gave a total capacity of 22.53 cu in (370 cc).

More than 8,000 hours were spent in the construction.

 

Nearly Complete
Crankshafts
Cranks & Rods
Rod Clearance
Crank Drive End
Rods & Pistons
Case, Cranks & Rods
Case, Cranks & Rods
Case, Cranks & Rods
Case, Cranks & Rods
Case Front, Crank Phasing Gears
Case Rear
Case Rear
Cylinders Blocks, Sleeves, Junk Heads
Assembled Cylinder Bank
Assembled Cylinder Bank
Sleeve Drive Detail
Sleeve Drive Detail
Sleeve Drive Crank and Gear
Oil Pump
Fuel Injection Pump
Fuel Injection Pump
Intercooler Pump
Main Coolant Pump
Sump Components
Assembled Sump
Propeller Shafts
Prop Reduction Gears
Prop Reduction Gears
Prop Reduction Gears

 

Prop Constant Speed Unit
Auxiliary and Constant Speed Drive
Aux Drive Unit
Aux Drive Unit
Port Supercharger Clutch
Supercharger Drive
Supercharger Drive Clutches
Supercharger Drive
Supercharger Drive
Impeller Housings
Impeller Housings
Impellers
Impeller
Impeller
Induction Air Intake
Induction Air Intake
Aftercooler
Magneto
Magneto
Magneto
Magneto
Magneto
Spark Plug and Lead
Connector Detail
Propeller Hub
Eagle 22
Eagle 22
Eagle 22
Eagle 22
Ignition Leads
Cylinder Assembly Jig
Eagle 22 Trial Fit
Eagle 22