Quest #2

[Jerry Wilson]

Hello Eric,
 
I also have the Performance Specialties muffler and 90 degree swivel
header for my YS 91FZ in a Quest which I hope to maiden flight today.  I
have the Dubro diverter but it appears to cause a lot of back pressure.
Is there a part number for the Hatori Diverter.  I looked on Central
Hobbies web site and did not see it there.  How do you attach it to the
muffler?
 
Thanks and regards,
 
Jerry
 
PS. The Quest is a heck of a nice pattern ship for $250
 
-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]
On Behalf Of Henderson,Eric
Sent: Tuesday, November 11, 2003 3:35 PM
To: discussion at nsrca.org
Subject: Quest #2
 
With a balmy 54F in NJ today, I took my second Quest to lunch with me!!!
 
The YS 1.10 was given a quick break-in on the ground and then the plane
was flown. Nothing spectacular to report. The plane flew well. Still
needs a little more right thrust. Even running very rich the 1.10 would
pull the plane straight up with the "break-in" APC 14 x 11. The engine
has YS Engine Performance Specialties 90 degree header and muffler. I
use an Hatori black rubber diverter to keep the oil away from the bottom
of the fuselage. With this set-up you can keep everything inside the
cowl.
 
The plane weighs 9 lb 2.2 oz and feels very light on the sticks.
 
I did two long flights and went home satisfied that the YS1.10 will be
killer once it is run in. It was very friendly from the outset and ran
well even when set rich. I will run the 14 x 12 and the 14 x 13 when it
is full broken in.
 
A comment on CG. I have had more e-mails on this subject than any other
aspect of the plane. The plane calls for 165 mm from the LE. I ran my
1.40 version at 175 mm and it still carried a little up-trim. The latest
plane was set a 170 mm and now carries more up trim than the first one.
I shall move the CG back on both of them to see if it has any adverse
affects and to advise on what is a sensible rearward CG. 
 
As it stand 175 mm (~6-3/4") works just fine.
 
One trimming tip. After you land you often find that you have beeped in
a few % of trim here and there. If you like keeping your main trims at
zero% you will most likely the electronic sub-trim or mechanical pushrod
adjustment. It is hard to reproduce the desired trim by eye or feel.
 
A neat trick is to use two pins. Put one pin sticking straight out of
the TE of the aileron. Then position a second pin sticking out of the TE
of the wing. Line the pins up. Then take out the stick trim-setting and
re-align the control surface pins with the sub-trim or turnbuckle or
whatever.
 
You can be very accurate with this and it is also very easy to do in
field conditions.
 
Regards,

Eric.
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