Hi John,

I ran a 5345/16 in an EF 88" Yak. Was running it on 12S and with a Spin 99. I've sold the model now but at the time it was putting out over 4000W on a half charged pack. This was with a 24 x 10 Mejzlik prop. Model weighed approximately 8.5kg and performance was awesome.

I think your 5330/18 will be marginal. It will fly it but don't expect it to be spectacular.

Cheers,
Jason.