My motor kit arrived, thanks a lot. It'll be a while before I do any tests or experiments though, I have to check out the sim and then the real aircraft before I make any decisions
I really need some engineering drawings of a Spitfire yoke. I've got a comprehensive book that contains blueprints of the entire MKIX but they are more focussed on the airframe. When I do the simulator session I'll ask the guys there how they acquired their blueprints ( I'm assuming they use a Brunner system, it definitely has FFB or it wouldn't be CAA approved for training ) I will make 'puppy dog eyes' at them until I get the drawings I need
Authentikit is a marvellous project, can't praise them enough. But I'm looking at a 1:1 cockpit build, and they have a modified stick design that makes sense for the 99% of people who need something a bit less single minded
It's going to be eye wateringly expensive but it will be a real experience. To be honest it's the availability of a flight in the real plane that's driving my decision to build the Spitfire cockpit. I love the Spitfire, because what Englishman doesn't ? but I'd like an EE Lightning a little better. But there's no prospect of high fidelity simulator software for that and no way to fly a real one. I knew about Thunder Road, but they shut down years ago and I don't know if they allowed any stick time on the aircraft anyway.
Hey, welcome! Yes kits are available. You can check the pinned posts in #showcase for photos. The regular motors (57blf) kit starts at 299€ and the bigger motors (86blf) start at 399€. The kits are plug and play and the working is demonstrated on my YouTube VPforce DIY video
the question is, what for? why so much power? the rhino base with it's form and grip length is already really powerful. it needs to fixed really tight when it starts to unleash max forces, if not you are starting to move the base instead of the grip.
1 Foot = ~ 300mm. This is similar to the distance to the pivot in most real aircraft. (F-18 has around ~ 1.5ft pitch, ~1ft roll, if the sources I've seen are accurate) (the center of the palm may rest as much as 75mm above the base of the grip)
A pull force of ~20lbf for full deflection seems fairly typical of fighter aircraft. (Looking for data on the f-18 I found a figure stating a force gradient of 3.5lbf/g. 3.5lbf * (7.5g-1g) ~= 23lbf = 31Nm at full aft stick.) >20Nm seems fairly reasonable if you want to build a realistic stick for a modern jet.
manuvering aircraft without fbw (for instance the p-51) at high speed could easily become a two handed job.(>70lbf) But replicating that isn't really very viable for a ffb setup
20NM wouldnt be a terrible place to be, it would net you about half the stick force of a relatively light stick like the Mirage 2000 using the thrustmaster hornet grip and rhino base format.
Of course directly connecting the motors to the gimbal would be a little overkill. About a 10:1 reduction seems like the most you're going to easily fit in a single stage on a reasonably sized gimbal.
I also ran into some ergonomic issues with the wrist, because it was a short stick the angular deflection was much higher than something in a real aircraft. If it was a full size stick I suspect it would be a lot more manageable