The IC Engine Designs of ET Westbury

Created: 2005.
Last update: June, 2007.

Name Type Cooling Cylinders Ignition Bore Stroke Capacity Plan Year Volume Issue
Apex Minor 4S OHV AC 1 Spark 1.0" 1-1/8" 0.89 cuin   1944 67 1640
Atom II 2 SP AC 1 Spark 1-5/16" 1-5/16" 1.8 cuin   1930 63 1528
Atom III 2S RRV AC 1 Spark 1-5/16" 1-5/16" 1.8 cuin   1932 67 1647
Atom V 2S RRV AC 1 Spark 1-1/4" 1-1/2" 1.85 cuin PE7 1942 87 2163
Atom Minor Mk I 2S SP AC 1 Spark 1.0" 1-1/8" 0.89 cuin   1932 67 1640
Atom Minor Mk III 2S RRV AC 1 Spark 23/32" 7/8" 0.36 cuin PE13 1947    
New Atom Minor 2S SP AC 1 Spark 3/4" 7/8" 0.39 cuin        
Bumble Bee 2S SP AC 1 Spark 1-5/8" 1-1/2" 3.1 cuin   1954 110 2765
Busy Bee 2S SP AC 1 Spark 1-7/16" 1-1/2" 2.44 cuin PE23 1951 104 2601
Centaur 4S OHV Farm WC 1 Spark 1-1/2" 2.0" 3.5 cuin M21 1957 117 2930
Channel Isle Special 4S OHV AC 1 Spark 0.94" 7/8" 0.61 cuin   1948    
Cherub 2S RV AC 2 inline Spark 3/4" 11/16" 10 cc PE28 19?? 118  
Craftsman Twin 2S RRV AC 2 opposed Spark 3/4" 11/16" 0.61 cuin   1948 98 2436
Ensign 2S RV AC 1 Spark 15/16" 7/8" 10cc PE19 1955 96  
Dolphin 4S OHV AC 1 Spark 1.0" 1-1/8" 0.89 cuin PE27 1955 112  
IC Road Roller 4S WC 1 Spark 1" 1-1/8" 0.785 cuin   1938 78 1913
Kestrel 2S FRV (disk) AC 1 Spark 18mm 20mm 0.31 cuin PE3 1937 77 1911
Kinglet 4S SV AC 1 Spark 18mm 20mm 0.31 cuin PE4 1938 78 1936
Kittiwake 4S OHV (inclined) AC 1 Spark 1.0" 1-1/8" 0.89 cuin PE5 1944 91 2275
Kittihawk 4S OHV (inclined) AC 1 Spark 1-1/4" 1-7/16" 1.76 cuin PE18 1944    
Kiwi Mk I 4S OHV AC 1 Spark 1.0" 1-1/8" 0.89 cuin   1935 70 1759
Kiwi Mk II AC 4S OHV AC 1 Spark 1.0" 1-1/8" 0.89 cuin PE16 1960 123 3088
Kiwi Mk II WC 4S OHV WC 1 Spark 1.0" 1-1/8" 0.89 cuin PE16 1960 123 3082
Ladybird 2S SP AC 2 inline CI 3/8" 9/16" .124 cuin PE22 1949 100 2507
Locomotive "1831"
(see also PE1)
4S WC 2 Spark 1" 1-1/8" 1.77 cuin LO4 1941 84 2069
Loyal 2S, 2 automatic poppet valves! AC 1 Spark 1-3/4" 4" 3.06 cuin np 1966 134 3357
Phoenix 2S SP AC 1 Spark 1" 1-1/8" 0.88 cuin PE24 1949 101 2529
Seagull AC 4S SV AC 2 inline Spark 3/4" 11/16" 0.61 cuin PE25 1950 103 2587
Seagull WC 4S SV WC 2 inline Spark 3/4" 11/16" 0.61 cuin   1950 103 2564
Seal 4S SV WC 4 inline Spark 5/8" 11/16" 0.92 cuin PE20 1947 96 2387
Seal Major 4S SV WC 4 inline Spark 0.812" 0.875" 1.81 cuin   1950    
Sealion 4S OHC WC 4 inline Spark 7/8" 3/4" 1.8 cuin PE29 1959 130 3029
Seamew 4S SV AC 1 Spark 3/4" 11/16" .303 cuin np 1950 103 2587
Wallaby 4S OHV WC 2 inline Spark 1.0" 1-1/8" 1.79 cuin PE1 1962 126 3171
Whippet 4S SV WC 1 Spark 1.0" 3/4" 0.59 cuin   1963 129 3226
Wombat 2S RRV AC 1 Spark 1" 3/4" 0.589 cuin   1968 134 3350
Wyvern 4S OHV (farm) WC 1 Spark 1-1/4" 2.0" 2.45 cuin   1963 129 3224
Zepher 2S RRV AC 1 Spark 9/16" 9/16" 0.142 cuin PE14 1946 94 2349

 

Legend:
2S two-stroke
4S four-stroke
AC air-cooled
CI compression ignition
FRVfront rotary valve
OHCover-head cam
OHVover-head valve
RRVrear rotary valve
SP side port
SV side valve
WC water-cooled
np no published plan

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