---------------------------------------------------------- Commander-List Digest Archive --- Total Messages Posted Sun 01/20/13: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:26 PM - Re: Re: Non-Commander Question: Biplanes (Peter Bichier) ________________________________ Message 1 _____________________________________ Time: 01:26:20 PM PST US Subject: Re: Commander-List: Re: Commander-List: Non-Commander Question: Biplanes From: Peter Bichier The staggering also helps to avoid both wings stalling at the same time; usually the lower smaller wing stalls first, then if you continue with that same AOA or increase it, then the second wing stalls. p. On Sat, Jan 19, 2013 at 8:15 AM, yourtcfg@aol.com wrote: > ** > You are correct, the stagger is to help negate the interferance of the > wings. It also helps extend the wing cg by avereging the the center of li ft > over both wigs. The antinov wings are probably far enough apart that they > bony effect wash other. Don't know about the ch? Jb > > Sent from my Verizon Wireless Phone > > ----- Reply message ----- > From: "Andrew & Bridget Watson" > To: > Subject: Commander-List: Non-Commander Question: Biplanes > Date: Fri, Jan 18, 2013 9:14 am > > > Hello everybody, > > Forgive me bringing a biplane aerodynamics question to the Commander foru mbut hopefully somebody can answer this > . > > I was always under the impression that a biplane=92s wings were staggered wither > negatively (as in the Beech Staggerwing) or positively (e.g. Tiger Moth) so > the bottom and top wings do not interfere with each other, so negating > some lift. However, looking at a picture of the Antonov An2/An3 Colt, > there is no noticeable stagger. Does the stagger negate lift conflict? Or > was I wrong in my thinking? > > I do understand that the stagger changes the centre of lift on the wings, > that it improves stability, and so on, but do unstaggered wings interfere , > even to a slight degree, with lift generation? > > Thanks in advance. > > Andrew > > * > =========== =========== =========== =========== > * > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message commander-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Commander-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/commander-list Browse Digests http://www.matronics.com/digest/commander-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.