---------------------------------------------------------- Zenith640-List Digest Archive --- Total Messages Posted Fri 07/17/09: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:01 AM - Re: new member, new project? (steveadams) 2. 08:58 PM - Re: new member, new project? (super58d) ________________________________ Message 1 _____________________________________ Time: 06:01:42 AM PST US Subject: Zenith640-List: Re: new member, new project? From: "steveadams" 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 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=253462#253462 ________________________________ Message 2 _____________________________________ Time: 08:58:52 PM PST US Subject: Zenith640-List: Re: new member, new project? From: "super58d" 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 -------- Mark s/n 094 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=253589#253589 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message zenith640-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Zenith640-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/zenith640-list Browse Digests http://www.matronics.com/digest/zenith640-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.