Engine basics > Four strokes only

what size four stroke

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Darren Stout:
i just want to know what size four stroke to use on a .15-.25 plane and also a .19-.35 plane.

Robert Zambelli:
OS FS 20 and Surpass 26 are fine for smaller planes but a bit on the heavy side compared to a two-stroke 15.

For the smaller 19 to 35 size planes, the SAITO 30 is perfect, the larger ones go great with the SAITO 40.

Bob Z.

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