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-   -   Long legs vs cyclic in 109 .... (https://www.pprune.org/rotorheads/539836-long-legs-vs-cyclic-109-a.html)

nigelh 14th May 2014 22:07

Long legs vs cyclic in 109 ....
 
Does anyone else have the problem of almost no left cyclic with collective raised ?? I usually make sure my approach into a tight site has the wind on my right hand side ,as I don't have enough cyclic with even a light wind from the left .
The collective seems badly designed with the box of tricks on the end protruding out towards the pilot more than towards the copilot .
Has anyone looked at switching it around which would at least give a little more movement . Have lived with it for last few years but today I had to actually lift my leg up off the pedal in order to move the cyclic enough !!!!
Extending the pedals or moving the seat back is a possibility . I can't be the only one with long legs who has this problem !!!!

canterbury crusader 15th May 2014 02:26

Had the same problem in a 407. Not nice when you run out of any control as it generally isn't happening in the cruise but while your close to stuff.

Turned out it was one machine that was rigged slightly differently. It was within limits but at the very edge of those limits and a tiny adjustment resulted in the necessary movement of the cyclic's centre point. Made a huge difference and solved my problems, none of the shorter guys had an issue as their knees weren't in the same spot. I know nothing of the 109 but it could be worth looking into.

It was near impossible for the engineers to diagnose due to the precise nature of the measurements and the adjustment was so small they didn't think it would do anything. The resulting change in cyclic position was too much so it was backed off a little. Problem solved.

BlenderPilot 15th May 2014 03:30

If I remember correctly, to correct for that, our SP model has a slightly bent collective . . .

longbox 15th May 2014 06:14

Ask your engineering company to put the check rig pins in and also check the rigging of the swash plate links for correct length, I am tall I fly the 109 and gave not had any issues

ShyTorque 15th May 2014 09:04

AW produce extended pedals as an option.

Private Parts 15th May 2014 12:54

I'm 6'1" and have no problems in an SP.

Rigging??

nigelh 16th May 2014 11:22

Thankyou everyone for you help . I have also had a very useful PM and will let you know the result . The pedals extend anyway , but are at full extension . It is just the combination of knee up against the very big box on the end of the collective and there is then no room to move the cyclic . Not sure why i have put up with it for so long !! I think rigging will solve it but also IF one was allowed to bend the collective away a bit ( there is plenty of room in the middle ) that would equally sort it .
PPrune can be very useful at times ...Thankyou !!!!!!!!!!

Senior Pilot 16th May 2014 12:41

nigelh,

In the early days of the 109E, I had similar problems and queried it with Agusta. There was some issue relating to machines with and without sliding doors and the anticipation that those with would be used for winching with associated lateral CG concerns. To allow for this there was (reputedly) a different rigging which shifted the cyclic.

But that was many years ago, and may have been complete tosh!

nigelh 16th May 2014 13:40

That would make sense if the winching was from left door which it probably was ....Even if the box on the end of the collective was turned around that would help . It doesnt seem to make any sense at all having it protruding more towards the pilots legs than co pilot ....there is ample room on that side !!

bob2s 17th May 2014 07:02

May be the cyclic stick is not centred in the cyclic support at the base of the pilots seat. Inside the cyclic cover are two AN4 bolts which clamp the stick into the support,have your engineer loosen the bolts and ensure the stick is in the centre and bolts not been tightened whilst the stick was leaning to the left when it was last installed

ShyTorque 4th Jun 2014 23:10

When I mentioned extended pedals as an option I meant a different pedal type altogether from the standard ones; they are designed for taller pilots.

CRAZYBROADSWORD 5th Jun 2014 21:17

In the 119 I have the same problem there is a spot when the collective is partially raised where I have very little left cyclic available , the owner does not have the same problem . I'm 6 foot one he's 5 foot 10 ish


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