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huntcamj(at)gmail.com
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 Posted: Sat Mar 15, 2025 7:02 pm Post subject: Flap settings |
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Hi Europa list,
I am not sure if this is the right venue, but my question concerns the flap settings for a monowheel.
We recently raised our 2001 Europa XS monowheel off the ground to check the gear/flap mechanism swing, and noticed that the retracted flaps had a 3-5 degree droop compared to the level ailerons. Is this normal, and, if not, is there any capacity to adjust this? I’m sure this could contribute to some increased drag in the cruise.
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rparigoris
Joined: 24 Nov 2009
Posts: 804
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| Posted: Sun Mar 16, 2025 4:45 pm Post subject: Re: Flap settings |
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Hi Huntcam
Look at chapter 27 and use template for wing and see where flaps are at.
Ailerons can be adjusted up or down.
If flaps are drooping, look close at flap pin/bushing fit, that there is no movement on the control horn to flap drive tube, that the flap drive pivots are not loose and that the both ends of the flap pushrod are tight. We installed adjustable flap up stops. We followed the manual as far as flap pin location, but the flap cross tube was hitting the back side of the cockpit module. Some mutilation and BID replacement was in order in order to get the flaps to raise as much as we wanted.
Our flaps drop the same amount in the full down position, but without a stop, one raises a little more than the other. With the stop, it limits the up of the one that raises too much, and you pull a tiny bit more to get the other to hit the second stop.
For what it's worth, we have our ailerons a little reflexed until we learn the bird. From what I understand, when you pull positive Gs the ailerons go down because the pushrods don't flex but the wings do. Not ideal as far as having a tame bird to reduce effective washout. Met one pilot who drooped the ailerons on purpose to gain a little efficiency. He said it does work, but the bird spins like a maple leaf without too much provocation.
Ron P.
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DuaneFamly
Joined: 16 Jan 2022
Posts: 23
Location: Chandler, AZ
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| Posted: Mon Mar 17, 2025 6:27 am Post subject: Flap settings |
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Something I added was a short steel cable that allows full flap deployment but would “catch” the flap if for some reason that flap became detached from the flap drive arm in flight.
Mike Duane
Chandler, Arizona
Europa XS Jabiru 3300
Conventional Gear
Sent from the all new AOL app for iOS
On Sunday, March 16, 2025, 17:45, rparigoris <rparigor(at)hotmail.com> wrote: | Quote: | --> Europa-List message posted by: "rparigoris" <rparigor(at)hotmail.com (rparigor(at)hotmail.com)>
Hi Huntcam
Look at chapter 27 and use template for wing and see where flaps are at.
Ailerons can be adjusted up or down.
If flaps are drooping, look close at flap pin/bushing fit, that there is no movement on the control horn to flap drive tube, that the flap drive pivots are not loose and that the both ends of the flap pushrod are tight. We installed adjustable flap up stops. We followed the manual as far as flap pin location, but the flap cross tube was hitting the back side of the cockpit module. Some mutilation and BID replacement was in order in order to get the flaps to raise as much as we wanted.
Our flaps drop the same amount, but without a stop, one raises a little more than the other. With the stop, it limits the up of the one that raises too much, and you pull a tiny bit more to get the other to hit the second stop.
For what it's worth, we have our ailerons a little reflexed until we learn the bird. From what I understand, when you pull positive Gs the ailerons go down because the pushrods don't flex but the wings do. Not ideal as far as having a tame bird to reduce effective washout. Met one pilot who drooped the ailerons on purpose to gain a little efficiency. He said it does work, but the bird spins like a maple leaf without too much provocation.
Ron P.
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http://forums.matronics.com/viewtopic.php?p=515316#515316
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