Today's Message Index:
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1. 06:01 AM - Re: new member, new project? (steveadams)
2. 08:58 PM - Re: new member, new project? (super58d)
Message 1
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| Subject: | Re: new member, new project? |
Wow. Nice to see a small flurry of activity on this list.
Doug - Congratulations and nice job on your plane. It looks great. You will love
how it flies. As far as speeds, here are a few ballpark numbers and tips for
you first flight. Obviously, these numbers are in my plane, so until you verify
your ASI accuracy etc, please don't take them as hard numbers for your airplane.
Flying solo it accelerates quickly on the runway. Until you find the best
setting for you, set the elevator trim in a neutral position initially. This
will require some back pressure on the yoke to get the nose wheel off the ground
at about 55 kts, it will then fly itself off shortly after. Vx is 65 kts
and Vy is 74 kts in my plane. Stall clean is 48 KIAS and with flaps is 42 KIAS.
For landing, I pull power back to 1500 abeam the numbers, put in 10 of flaps,
slow to 80 KTS on base with 20-30 of flaps, 70 kts on final and 65 kts over
the fence with full flaps. If you have the runway length available, you can probably
come in a bit faster until you are comfortable with it's slow flight handling
characteristics. It can be tough to keep the nosewheel up after the mains
touch, but this is usually because you land a bit fast. There are really no
quirky flight characteristics. Have fun and be careful.
Jeff - welcome. I think you made a great choice in building the 640.
I have the manual elevator trim, which I like. The trim wheel mechanism seems a
bit complicated, but is really not that difficult to assemble, and has worked
flawlessly so far (700 hrs).
Have fun building and flying.
Steve
621J
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Message 2
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| Subject: | Re: new member, new project? |
Hey Steve,
Thanks for all the numbers. It gives me something to compare to flying Cessna's
(which is the only fixed wing experience I have). I do have about 3000 hours
in helicopters, but I learned quickly when getting my fixed wing license that
a good airplane wants to fly. ALL helicopters want to kill you!! Anyway, you
said you have to manual trim. Any wishes that you had electric trim? I'm a gadget
guy and big time avionics geek. I'm trying to decide if electric trim will
really make things easier/ better in the long run, or if I'm just wanting it
because I think It's cool.
Thanks
Mark
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Mark
s/n 094
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http://forums.matronics.com/viewtopic.php?p=253589#253589
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