Today's Message Index:
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1. 10:18 AM - Anybody out there flying an Allegro? ()
2. 12:53 PM - Re: Anybody out there flying an Allegro? (Hugh MCKAY III)
3. 06:26 PM - Re: Pilot Training Handle for Allegro 2000 (aerosiam)
4. 06:49 PM - Stiff rudders (aerosiam)
5. 08:12 PM - Aileron control problem (aerosiam)
Message 1
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| Subject: | Anybody out there flying an Allegro? |
I've flown the lower 48 in Allegro 43 in my plane N44469 and 5 ferrying a new plane
from NC to AZ. I'd love to hear from other Allegro pilots.
Jim Hazen
jlhazen@copper.net
Message 2
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| Subject: | Re: Anybody out there flying an Allegro? |
Jim:
I am flying a 2004-Allegro 2000 (N661WW) located at Laney's Airport (N92)
near Maiden, NC. Where are you located?
-
Hugh McKay
Allegro 2000
Rotax 912UL
-
hgmckay@bellsouth.net
--- On Sat, 2/28/09, <jlhazen@copper.net> wrote:
From: <jlhazen@copper.net>
Subject: Allegro-List: Anybody out there flying an Allegro?
I've flown the lower 48 in Allegro 43 in my plane N44469 and 5 ferrying a
new plane from NC to AZ. I'd love to hear from other Allegro pilots.
Jim Hazen
jlhazen@copper.net
Message 3
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| Subject: | Re: Pilot Training Handle for Allegro 2000 |
Hugh
I have the training handle. It looks like a bicycle part, the type that gives a
vertical handle as an add-on to an existing handle bar so you can probably buy
it for a few dollars. It slips over the stick and
If not, you can have mine for the postage from Thailand
Paul
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=232542#232542
Message 4
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When our Allegro 2000 was delivered the rudders were stiff.
We found the problem to be the sleeve (the piece with the lubricating nipple in
enclosed photo) jamming against the collar above. We machined it down a few thou
and the rudders are smooth and light.
Paul
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=232544#232544
Attachments:
http://forums.matronics.com//files/pict2793_122.jpg
Message 5
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| Subject: | Aileron control problem |
When our Allegro 2000 was delivered, our ailerons seemed unusually stiff.
On the ground, the ailerons were light but became progressively stiffer at speed
to the point where it took about a 3 pound pull to move the stick off center
at 110 knots.
We had no point of comparison but after some very helpful emails from Thom Riddle,
it was clear that the Allegro should have light ailerons. Although it is normal
for stick forces to increase with speed, ours felt excessive and unnatural.
We removed the wings and stripped down the aileron control system and found 2 problems.
1. There is a long 8 foot pushrod from the bellcrank in the middle of the wing
which extends all the way into the cabin . It has a 2 triple nylon wheel bearings.
One is near the wing strut and the other at the wing root.
The pushrod showed wear from only one point from each bearing. From the top on
the wing bearing and from the bottom on the root bearing. This suggested the rod
was bending in a vertical S and starting to jam on the bearings. Moving the
ailerons increased the load and would account for the stiffness.
2. A rod in the cabin attaches to the triangular bellcrank and passes thru 2 nylon
bushings one of which is in a tube welded to a flange and attached to the
bulkhead near the top seat belt attachment points. (see photo). It looks like
the factory had not welded the flange correctly. It was misaligned quite badly
and appeared to show attempts to bend it to fit. The rod missed the bellcrank
by about an inch.
We replaced the long pushrods with a stronger tube and used spacers to correctly
align the flange. Now the ailerons are very light and feel normal. I can only
assume that the factory used the wrong spec pushrod on our Allegro or there
is a third set of bearings missing which seems unlikely.
To check your plane, remove the clevis pin from the long pushrod where it meets
the short red pushrod. The ailerons should move freely. Remove the clevis pin
under the right hand luggage tray. The stick and bellcrank should move freely
individually.
If the wing pushrod is bending, it will be visible in flight. The photo clearly
shows the ailerons at cruise speed bending up to lie flush with the reflexed
flaps (therefore 4.5 degrees) and way above the tip fairings.
Although we had problems with our ailerons, we have solved them and I like the
system. I like an all-pushrod setup and the wing bellcrank, for example, appears
solid and well anchored to the spar. The large ailerons are light and powerful
and make the Allegro agile for a long wing plane.
We have flown 150 hours with the Allegro including a 2000 mile round trip from
Thailand to Malaysia and we really like the airplane. It is very comfortable to
fly with pleasant handling and is easy to land. It is a great cross country
plane with lots of luggage space. We have the long range tanks and even with the
100hp, the range and endurance is excellent.
Paul
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=232552#232552
Attachments:
http://forums.matronics.com//files/bellcrank_303.jpg
http://forums.matronics.com//files/ailerons_bending_135.jpg
http://forums.matronics.com//files/ailerons_bending_151.jpg
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