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tonyrenshaw268(at)gmail.c
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 Posted: Thu Sep 25, 2014 7:24 pm Post subject: Min turns on rod ends, and a stick height dimension request |
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Gidday,
I am setting up my tailplanes and specifically my elevator throw. I seem to have the displacement correct and note that my cranked sticks result in the grips I have, which unfortunately project forward, conflict with my panel, which is also on 20 mm rubber mounts. So, I have decided I need to get the stick displacement “range” further aft, and I can do this by extending the elevator pushrod length at the base of the stick. I know it is ideal to make control rod adjustments equal at each end, but in reality there doesn’t seem to me to be too much logic in that if there is an adequate number of threads in the rod end. My rod ends in question are 3/8”, and I recalled that I needed a minimum of 4 1/2 turns. Enquiring of my local Europa guru, he said that you need the diameter of the rod end in “depth” of thread, which I have noted to be 6 turns. It appears I don’t need quite that minimum, but the less I leave in the rod end, the further aft I get the “range” of the elevator. I have only been in a Europa twice, and whilst my top is not on and my doors not on, I am relying a little on those experiences to realise my 5’9” (175 cm) size really needs to be jacked up on about 6” from the floor, not the 4” cushion I originally imagined. The reason I mention this is because the height of the base of my handgrip is advice I would like to seek. Of someone with similar stature, or even others who could help out with advice, I’d love to know the height from the top of your thigh support to the base of your handgrip, or the base of your hand if you don’t have a grip with a small shelf “toe” to it? I still think I need to cut down my sticks more, and whilst I appreciate I should do something else at this stage and leave it until my seats go in, which would mean when my top was on and doors to establish ideal cushion height, I’d like to get the sticks close at this point. I have already noticed that whilst this adjustment no longer conflicts with my panel (only just though), full left aileron conflicts with my eyebrow exte!
nsion of
the glare shield over the primary panel, so I might have to shape the bottom corner of it to accommodate. Irrespective, I’ve realised the need to twist the stick to avoid sidewall conflict, but it also seems to impact then on your full right stick movement in terms of the space available with a thigh in the way. Can see it as being a bit of a juggle to get right. Ironically shortening the stick a little more allows less twist required of the stick at full left turn input, giving more thigh room on the right hand side when the stick is commanded for a right turn. This brings me back to the original question, if anyone can offer up advice of their relaxed hand position on the stick, the height from the base of their hand to the top of the thigh support with the controls neutral. Much appreciated.
Regards
Tony Renshaw
Sydney Aussie (home from a great holiday in France)
P.S. I have the original classic cockpit module which may offer less room for your thighs at full aileron throw. I’m not sure.
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Remi Guerner
Joined: 14 Dec 2010
Posts: 284
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| Posted: Fri Sep 26, 2014 12:32 am Post subject: Re: Min turns on rod ends, and a stick height dimension requ |
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Hi Tony,
When I bought my aircraft -this was 13 years ago- I discovered that the pilot stick was about 2 inches shorter than the copilot's. For some reason the builder had decided to shorten it. This was making the pitch control very sensitive, especially in the landing phase. I made an extension to bring the stick length back to the original configuration and this made my landings a lot easier.
As it is easier to shorten the stick than lengthen it, my advice would be to keep your stick as it is until you have flown your aircraft for a while, then decide what length works best for you.
Regards
Remi
F-PGKL
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