I know it�s only Wikipedia, but check out �Wankel engine� and the section headed �Design�. It starts: �In the Wankel engine, the four strokes of a typical Otto cycle occur in the space between a three-sided symmetric rotor and the inside of a housing.�
Having said that, I couldn�t actually care less whether it�s called a 2, 4 or 3 and half stroke. It works rather well on a kart, end of story.
To an extent I also agree with Singers regarding future suitability of 4-stroke (including Wankel) vs. 2-stroke engines with respect to cutting emissions etc. However, even that�s only looking forward medium term at the most. Beyond that there will have to be solutions that don�t involve burning fossil fuels.
If the MSA ever does produce a White Paper to follow the Green Paper of six months ago, what�s the betting that it will not even begin to acknowledge, never mind address, such questions? It would continue to be the happy 2-stroke cocoon, ignoring anything else.
As for the fringe question of the Aixro specifically, it would continue to be disregarded precisely because it�s the ideal karting motor (right now). Imagine how many influential people in the trade would be put out by its MSA recognition. They won�t stand for it.
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