I race with the [link=http://www.swambc.webeden.co.uk/]SWAMBC[/link] in the South West of England, we have two ECO classes, this years specs were - F3 any stock 19turn single 540, 6 sub-c max 3300mAh, direct straight drive, no metal props (Graupner 2318.29 or 2327.29), 5mins, M course. F2 is a more open class for any brushed 540 motor, gearbox's, flexis, any 6 sub-c, metal props etc. Next year we will replace F2 with ECO Expert to Naviga rules.Attached are some pictures of my race winning Falcon ABS hull, known as the "Mad Cow".

More info and images are on our [link=http://web.ukonline.co.uk/alan.shipman/boats.htm]website[/link].