Geez... the website is terrible? We're airplane guys, not Amazon.com tech gurus. I thought that we were doing pretty good just getting a website up while trying to build parts to support the existing F1 Rocket fleet and also to build our own F4 Raider. I'll go beat Blake mercilessly until he gets the website in better shape.
But to answer your question, the F4 Raider is our response to all of the RV guys who wanted a 4 cylinder Rocket. I'd compare it to an RV-8, but with a more comfortable cockpit (no gear towers in the cockpit).
The Raider uses a stock F1 fuselage. Wings and tails can be obtained from the Van's secondhand market or from us once we get them back into production. The 4 cylinder engine mount keeps the prop in the same place as the stock 6 cylinder Rocket and allows the battery and other items to be moved up front to maintain CG. Externally, it will be very difficult to tell whether you are looking at an F1 Rocket or a Raider.
Larry V. put a 4 cylinder on his HRII to prove the concept. He reports good handling, an empty weight of well over 100# less than the stock HRII, and says he is quite pleased.
There is another, an F8, nearing completion here in Indiana, using an RV-8 tail and wings, with an F1 fuselage. And then there's mine, under construction, using an RV-4 tail and wings.
Currently (December 2016) we don't have full kits available. We do have all of the items that you can see on our "terrible" website at www.f1aircraft.com
and quite a few items that aren't listed there. We don't have a set timeline on kits. We know that isn't cool with the instant gratification crowd, but we're in it for the long haul and refuse to: 1) take money for things we don't have in hand or 2) promise things that can't be delivered on time and on budget.
What that means, is that new F1s and new F4s are being built by guys who who how to build and know how to obtain what is needed from various sources, including us. We are assisting, advising, and providing parts as we move forward with these gents.
To reiterate: our #1 priority is to support the existing F1 fleet, #2 assist new starts, and #3 produce more parts with the goal of having full kits again.
To see how a slow-build F1 Rocket or F4 Raider is built, visit www.vincesrocket.com
F1 Rocket and F4 Raider components
RV and Rocket Accessories, Tailwheels, Tools, & More
F4 Raider - under construction
F1-H Rocket "Crazy Horse" - sold
RV-4 "Chief Pontiac" - sold