RE: F4D-1 SKYRAY
Hi,
You are looking at a bigger EDF then a 90-mm. There are at least 2 versions of an electric powered Dynamax fan. If you have a fan unit already you can convert it to electric also. I think Electric Jet Factory has some of the parts. Try searching on here in the electric jets forum. I would also think you will need 12S Li-Po batteries of 5000-6500 MAH capacity. I have 2 of the Bob Violet Models EVF's and they are flawless. Also, Tamjets has some EDF units available. Try searching bvm.com and tamjets.com, you may get a better idea of what you can expect.
Keith