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Flight report: Morris Hobbies Su-Do-Khoi .60

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Flight report: Morris Hobbies Su-Do-Khoi .60

Old 03-14-2002, 04:32 AM
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wgeffon
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Default Flight report: Morris Hobbies Su-Do-Khoi .60

Finally flew it for the first time today. I had ran two tanks through the Saito 1.20 this weekend to get an initial break-in done.

First, I need more right thrust. It was pulling left with power. Ill add some more washers next time I fly it.
Once I trimmed that out with the rudder it was flying nicely hands off. The CG could go back a little farther also.

Half throttle is all thats needed for flying around. 3/4 will pull it vertical out of sight. I never even went to full throttle. The engine was set really rich at this point. So, when I can lean it out a little more it will be awesome!

The rolls, loops, snaps, inverted flight and the like, were all very nice. A little down is required for inverted. (CG)

I then slowed it down to see how it 3D's.
There has been some talk about the shape of the wingtips in harrier's and elevators. Whether the regular curved Su-Do wingtips made it better for this type of flying. My friends Su-Do .60 had the curved wingtips and I cut them clean on mine. I saw no difference from how mine did a harrier and his. they both have a little wing rock to them but, its not bad at all. If you time the rudder and aileron corrections right you dont see the rocking.
I used flapperons and just elevator (no flapperon) for the harrier. The rocking seemed a little worse with the flapperons. Still not bad though.

Hovering this plane is SUUUPPEEERRR easy. Its very, very stable. The Saito's torque makes it spin around really well in a TR. The rudder and elevator are very effective so its easy to correct for bad trends in a hover or a TR. It was hovering at about 1/3 throttle.

So far I have 6 flights on it. Tons of fun. Makes the hassles of the kit worth it.

I should have some pics and videos of it inflight soon. I'll post them here.
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Old 03-14-2002, 04:47 AM
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Default Flight report: Morris Hobbies Su-Do-Khoi .60

That thing sure is pretty!!! Great Job!! Glad your flights went so well.....
Old 03-14-2002, 05:14 AM
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Default Flight report: Morris Hobbies Su-Do-Khoi .60

very nice Su-Do-Khoi . now i want one!! Congrats on the great plane.
Old 03-14-2002, 12:34 PM
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John Wells
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Default Flight report: Morris Hobbies Su-Do-Khoi .60

Good deal, keep us posted as it goes along!

JW
Old 03-14-2002, 02:00 PM
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Default Flight report: Morris Hobbies Su-Do-Khoi .60

Thanks a lot for the flight report, no "PITA" wing tips for me. More right thrust, about how much total with the 1.20? More aft C/G, where is it now? Thanks.
Old 03-14-2002, 03:28 PM
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Default Flight report: Morris Hobbies Su-Do-Khoi .60

I put 3 oz's of weight in the tail prior to covering and the CG came out right in the middle of the range they give on the plans.

I had one #8 washer under each front motor mount bolt. I guess I'll try two.
Old 03-27-2002, 04:28 AM
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flyindoc
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Default Flight report: Morris Hobbies Su-Do-Khoi .60

OK, you guys got me in the mood to fix my su-do-khoi .60. I tore the wing panels apart in a mild crash and didn't want to rebuild the wings cause they are a real pain in the butt to build. So I cut new wing out of white bead foam. I cut the wing tube sockets in place and then sheeted them with 1/16 balsa. Worked out great. Now I just need to put the 91FX back on it and have some fun. I would probably still be sitting if I didn't dork my Knife .60 last weekend. Just need to rebuild the fuse for that one.

If your gonna hover low and touch the tail on the ground, eventually you will crash

I'll post some pictures when I get the wings covered again.

Andy
Old 03-27-2002, 04:34 AM
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Default Flight report: Morris Hobbies Su-Do-Khoi .60

Originally posted by Flyindoc

If your gonna hover low and touch the tail on the ground, eventually you will crash

Andy,

Refering to low hovers and TR's I always say,
If you play with fire, eventually your gonna get burned.
Or,
No pain, no gain.

I dont know how many times I have toppled over my Top Cap after a low hover/ tail touch. I have been lucky enough though not to break more than a wingtip.
Old 03-27-2002, 04:33 PM
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Default Flight report: Morris Hobbies Su-Do-Khoi .60

Originally posted by wgeffon


Andy,

Refering to low hovers and TR's I always say,
If you play with fire, eventually your gonna get burned.
Or,
No pain, no gain.

Oh how right you are... Couldn't have said it better myself.

Yet another reason to "BUILD" these funflys and not get them as arfs.

By the way your su-do-khoi looks AWESOME

Andy
Old 12-27-2015, 04:44 PM
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What is the recommended CG from leading edge of wing at fuselage? I dug mine out and I am trying to get it flying again.

Fawcet

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