---------------------------------------------------------- Zenith650-List Digest Archive --- Total Messages Posted Mon 02/02/09: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:33 AM - Re: Re: How Many Other 650 Builders Are There Now?? (Larry H) 2. 03:02 AM - Re: How Many Other 650 Builders Are There Now?? (Larry H) 3. 06:33 AM - Re: How Many Other 650 Builders Are There Now?? (PatrickW) 4. 08:31 AM - Re: How Many Other 650 Builders Are There Now?? (Bryan Martin) 5. 06:35 PM - Re: How Many Other 650 Builders Are There Now?? (dalemed) ________________________________ Message 1 _____________________________________ Time: 02:33:56 AM PST US From: Larry H Subject: Re: Zenith650-List: Re: How Many Other 650 Builders Are There Now?? > www.flycorvair.com > > Thats what I like about this community, always willing to > point a person in the right direction. I received my manual > from William last week & working through it. I'll > seriously start to look for a motor to build towards the end > of 2009. :D > > > Not sure if you already know about this link but I'll put it out anyway: http://mylist.net/listinfo/corvaircraft This is where the Corvair homebuild community have their discussions. It is also the list that William Wynne monitors and helps guys out with any problems you might have. It is a WEALTH of information!! When you are ready to start looking for a core engine (or 2), ask on that list. Someone will either have a core or will know someone that does. Just so you know, cores ARE out there to be found. I picked up 2 and paid only $150 each for mine. Hope this helps. Tailwinds and blue skies always, Larry Hursh ________________________________ Message 2 _____________________________________ Time: 03:02:24 AM PST US From: Larry H Subject: Re: Zenith650-List: How Many Other 650 Builders Are There Now?? > To develop a certain amount of lift, the wing must travel > through the air at a certain angle of attack. That is, the > angle of the wing chord relative to a horizontal plane will > remain constant at a constant airspeed to develop a constant > amount of lift. Now visualize the wing moving through the > air and held at a constant angle relative to the horizontal. > If you increase the angle of the wing relative to the > fuselage while maintaining wing at the same constant angle > relative to the horizontal, you will actually be reducing > the angle of the fuselage relative to the horizontal plane. > So the nose of the plane will be lower and you will have > better forward visibility. > >> --Bryan Martin > N61BM, CH 601 XL, > RAM Subaru, Stratus redrive. > do not archive. > Thanks for the response Bryan. It's making more sense now. I do have a couple of other questions though. If this lowers the nose of the aircraft, will that make any change in the airspeed or not?? Won't this also make the airplane have less parasitic drag, causing less fuel consumption also?? Will this change the geometry of the rear anchoring point (up and down)where the main rear spar attaches to the fuselage?? I know it's only 1 - 1 1/2 degrees of change, but at 4-5 feet, that distance changes drastically the further away you get from the main center spar, correct? Does Zenith account for this change in let you make "adjustments" at that anchoring point?? I would hate to get the center spar bent, installed and then go to put the wings on and run into all sorts of major problems attaching the rear main spar to the fuselage. Tailwinds, Larry Hursh ________________________________ Message 3 _____________________________________ Time: 06:33:49 AM PST US Subject: Zenith650-List: Re: How Many Other 650 Builders Are There Now?? From: "PatrickW" I'm putting a 650 canopy on my XL. Doing the "iron work" right now, but holding off for warmer weather until I mess with the bubble. When I take some new pictures I'll post them here: http://picasaweb.google.com/Patrick.hoyt For you guys who haven't ordered the 650 canopy kit for the XL yet, be aware that there are actually *three* 650 canopy related kits for the XL. There is some confusion over this, and none of this is detailed on Zenith's web site at this time. I only learned of this after talking to Roger the other day. 1) One kit is for builders who are sticking with the XL canopy, but who just want to install the 650 canopy latching system. 2) One kit is for guys who already have their XL canopy kits in hand (such as would be the case if you bought an entire XL kit). This canopy kit contains just the "conversion parts" and a new bubble. This one does not come with drawings, gas cylinders, brackets, etc, and assumes you already have all that stuff. If you get this one (like I did, not knowing all this stuff that I know now) you'll really be scratching your head as you'll be missing a lot of stuff and you won't have any drawings to tell you what you're missing. In all fairness, I think I ordered the first of the 650 canopy conversion kits for the XL, and the gal on the phone didn't know any more than I did. 3) One kit is the full 650 canopy kit for the XL, which contains everything you need to put a 650 canopy onto an XL fuselage (like drawings, forward top skin, side panels, gas cylinder struts, brackets, etc). When you call Zenith to order your 650 canopy [conversion for the XL], be sure to specify what exactly you're doing (like "I already have the full XL kit", or "I want to just use the 650 latch on my XL canopy", or "I need everything to install the 650 canopy on my XL which I am building from component kits and for which I do not have any of the XL canopy pieces") and then you should be ok. If you already have your 650 canopy conversion in hand, and are looking at it and and thinking "WTF?", I hope this post helps clear it up for you. :) - Pat -------- Patrick 601XL/Corvair N63PZ (reserved) Read this topic online here: http://forums.matronics.com/viewtopic.php?p=228146#228146 ________________________________ Message 4 _____________________________________ Time: 08:31:45 AM PST US From: Bryan Martin Subject: Re: Zenith650-List: How Many Other 650 Builders Are There Now?? The change in the nose angle could have some effect on the drag of the fuselage. I can't say whether it would be better or worse than before but I would expect the difference, if any, to be small. The rear spar attachment point has been changed on the 650, it has been moved down. The trailing edge of the wing is now nearly even with the bottom of the fuselage, it used to be a couple of inches higher. The rear spar attachment bracket is also thicker on the 650 because it had to be made narrower to fit in the new position. I believe that the connection of the flap control arm to the flaps had to be changed also. Before, the inboard end of the flap hinge pin and the torque tube were aligned center to center, so a round hole in the inboard end of the flap was all that was needed to connect the control arm to the flap. Now, since the hinge and the torque tube are not aligned, a slot in the inboard end of the flap is needed in the to allow the pin at the end of the control arm to slide back as the flap is deployed. On Feb 2, 2009, at 5:57 AM, Larry H wrote: > Thanks for the response Bryan. It's making more sense now. I do > have a couple of other questions though. > > If this lowers the nose of the aircraft, will that make any change > in the airspeed or not?? Won't this also make the airplane have > less parasitic drag, causing less fuel consumption also?? Will this > change the geometry of the rear anchoring point (up and down)where > the main rear spar attaches to the fuselage?? I know it's only 1 - > 1 1/2 degrees of change, but at 4-5 feet, that distance changes > drastically the further away you get from the main center spar, > correct? Does Zenith account for this change in let you make > "adjustments" at that anchoring point?? I would hate to get the > center spar bent, installed and then go to put the wings on and run > into all sorts of major problems attaching the rear main spar to the > fuselage. > > Tailwinds, > Larry Hursh > -- Bryan Martin N61BM, CH 601 XL, RAM Subaru, Stratus redrive. ________________________________ Message 5 _____________________________________ Time: 06:35:45 PM PST US Subject: Zenith650-List: Re: How Many Other 650 Builders Are There Now?? From: "dalemed" I was working on my 601XL wings (kit) when I decided to change to the 650. My 650 plans are s/n 7480. I'll continue to build the wings per the 601 plans and pick up any 650 changes that look good to me. -------- Dale Flying Cessna 170B Building Zenith CH650 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=228256#228256 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message zenith650-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Zenith650-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/zenith650-list Browse Digests http://www.matronics.com/digest/zenith650-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.