IC Engine or Electric? Historically, the only real choice for powering a trainer was a small 2-stroke IC (internal combustion) engine, probably of about 0.40 ci (cubic inch) capacity for the size of trainer described above. This size of trainer is often referred to as “40-size” for this reason. (One cubic inch is about 16.4…
IC Engine or Electric? Historically, the only real choice for powering a trainer was a small 2-stroke IC (internal combustion) engine, probably of about 0.40 ci (cubic inch) capacity for the size of trainer described above. This size of trainer is often referred to as “40-size” for this reason. (One cubic inch is about 16.4…