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The Rotax 462 is a 51 hp (38 kW), two-cylinder, two-stroke aircraft engine, derived from a snowmobile engine. It was built by Rotax of Austria for use in ultralight aircraft . [ 1 ]
While it is a commonly held misconception that all Ski-Doo snowmobiles were powered by rotary valved engines, this is not true. Only two cylinder Rotax engines were equipped with rotary valves. As a rule, the later rotary valved sleds were liquid cooled as well. Fan cooled sleds were usually piston port (2-stroke) induction.
Snowmobiles, constituting about 4 percent of sales volume in 1972, were offered in 1973 with an optional Wankel engine costing about $235 more than the conventional motor. Though this was the United States's first introduction to the revolutionary rotary engine, OMC's hopes of success were dashed by heavy competition from other snowmobile ...
The Wankel engine is a type of rotary piston engine and exists in two primary forms, the Drehkolbenmotor (DKM, "rotary piston engine"), designed by Felix Wankel (see Figure 2.) and the Kreiskolbenmotor (KKM, "circuitous piston engine"), designed by Hanns-Dieter Paschke [2] (see Figure 3.), of which only the latter has left the prototype stage ...
Loco #80 received the ex-#191 or 194 tender from Rotary #1 or 2 in 1949. [41] In 1993, Loco #80 (by then SV RR #20) received the former tender of Sumpter Valley Railway Loco #19. [46] Original White Pass #80 tender (ex-SV #18) was assigned to Rotary #1 from 1949 to 1950. Reassigned to Loco #190, when that loco was sold to the Tweetsie R.R. in 1960.
The Aerosport-Rockwell LB600 was a two-cylinder, two-stroke, air-cooled, horizontally opposed engine intended to power ultralights. It was developed in partnership by Aerosport and Rockwell International, based on a Rockwell-designed JLO snowmobile engine.
Another motorcycle with a rotary engine was Charles Redrup's 1912 Redrup Radial, which was a three-cylinder 303 cc rotary engine fitted to a number of motorcycles by Redrup. In 1904 the Barry engine , also designed by Redrup, was built in Wales: a rotating 2-cylinder boxer engine weighing 6.5 kg [ 3 ] was mounted inside a motorcycle frame.
The original snowmobile engine produced 40 hp (30 kW). Lowering the compression ratio not only de-rated the engine, but also made pull-starting easier and allowed it to run on lower-octane regular auto fuel. The resulting engine worked well, was de-rated to produce 30 hp (22 kW) at 5,500 rpm and proved reliable in service. [2]