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Stablilty during taxi

Jim Patillo #20969 David, I've already pointed out the possibility of weak springs at the firewall to Severson. I don't believe he has a bellcrank mod but may be wrong. I found that different strength rudder springs at the firewall produced vastly different handling charisteristics before switching to the bell crank mod. The plane can go from totally stable to very twitchy in taxi. As I've said all along; if you only do some of the mods the results will vary. With a plane that already has too many varibles that is not a good thing! Jim P N46JP Q200
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Larry Severson #20971 From Postma I've already pointed out the possibility of weak springs at the firewall to Severson. It is probably that I am weak, but my springs are a bear to hook up - on either side. I don't believe he has a bellcrank mod but may be wrong. It is installed! I will try to create a +3 degree camber, but I do have the big wheels. Larry Severson Fountain Valley, CA 92708 (714) 968-9852 larry2@...
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David J. Gall #20976 Larry, Ummmm, I hope I'm misunderstanding your intent, but you don't need +3, just zero at gross weight. The +3 was a new-construction guideline to make the wheelpant attachment.... Keep up the good work, David J. Gall toggle quoted messageShow quoted text ----- Original Message ----- From: "larry severson" <larry2@...> To: Q-LIST@... Subject: Re: [Q-LIST] Re: Stablilty during taxi Date: Mon, 27 Jun 2005 11:57:06 -0700 From Postma I've already pointed out the possibility of weak springs at the firewall to Severson. It is probably that I am weak, but my springs are a bear to hook up - on either side. I don't believe he has a bellcrank mod but may be wrong. It is installed! I will try to create a +3 degree camber, but I do have the big wheels. Larry Severson Fountain Valley, CA 92708 (714) 968-9852 larry2@... [Non-text portions of this message have been removed] Quickie Builders Association WEB site http://www.quickiebuilders.org Yahoo! Groups Links
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Larry Severson #20982 At 12:56 PM 6/27/2005 -0800, you wrote: Larry, Ummmm, I hope I'm misunderstanding your intent, but you don't need +3, just zero at gross weight. The +3 was a new-construction guideline to make the wheelpant attachment.... Keep up the good work, David J. Gall ---------- I am not at the plane, but 3 degrees works out close to 20 to 1. If the axel is 8 inches, I should be able to drop the outside and raise the inside (including braking system) each 3/16ths to achieve close to the 3 degrees. This should (?) only move the top of the wheel less than 3/8ths of an inch outward. Taking off the wheel pants is not a viable option at this time. Also, I may find the above does not work either with my 500X5 wheels. I can only do my best. Larry Severson Fountain Valley, CA 92708 (714) 968-9852 larry2@...
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James Postma <james@...> #20985 Exactly. The canard flexes 3 degrees going from no load to gross so if you set it at +3 when constructing you may not have to adjust the camber after building the airplane. James Postma Q2 Revmaster N145EX Q2 Revmaster with LS-1 Q200 N8427 Steilacoom, Washington (253) 584-1182 9:00 to 8:00 PDT May your header tank be always full and your wings right side up. toggle quoted messageShow quoted text ----- Original Message ----- From: "David Gall" <David@...> To: <Q-LIST@...> Sent: Monday, June 27, 2005 1:56 PM Subject: Re: [Q-LIST] Re: Stablilty during taxi Larry, Ummmm, I hope I'm misunderstanding your intent, but you don't need +3, just zero at gross weight. The +3 was a new-construction guideline to make the wheelpant attachment.... Keep up the good work, David J. Gall ----- Original Message ----- From: "larry severson" <larry2@...> To: Q-LIST@... Subject: Re: [Q-LIST] Re: Stablilty during taxi Date: Mon, 27 Jun 2005 11:57:06 -0700 From Postma I've already pointed out the possibility of weak springs at the firewall to Severson. It is probably that I am weak, but my springs are a bear to hook up - on either side. I don't believe he has a bellcrank mod but may be wrong. It is installed! I will try to create a +3 degree camber, but I do have the big wheels. Larry Severson Fountain Valley, CA 92708 (714) 968-9852 larry2@... Quickie Builders Association WEB site http://www.quickiebuilders.org Yahoo! Groups Links Quickie Builders Association WEB site http://www.quickiebuilders.org Yahoo! Groups Links
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rondefly@... #20993 James, did you arrive at the +3 degrees in static conditions? If so, that would not be accurate. Under live taxi tests it would be much more. Sorta like trying to hold 50# weight with it not moving, quite a bit different when it is moving. Ron T Ron & Carolyn Triano Q-200 N4710P http://bld01.ipowerweb.com/contentmanagement/websites/rtrianoc/page8.html toggle quoted messageShow quoted text -----Original Message----- From: Q-LIST@... [mailto:Q-LIST@...]On Behalf Of James Postma Sent: Monday, June 27, 2005 7:32 PM To: Q-LIST@... Subject: Re: [Q-LIST] Re: Stablilty during taxi Exactly. The canard flexes 3 degrees going from no load to gross so if you set it at +3 when constructing you may not have to adjust the camber after building the airplane. James Postma Q2 Revmaster N145EX Q2 Revmaster with LS-1 Q200 N8427 Steilacoom, Washington (253) 584-1182 9:00 to 8:00 PDT May your header tank be always full and your wings right side up. ----- Original Message ----- From: "David Gall" <David@...> To: <Q-LIST@...> Sent: Monday, June 27, 2005 1:56 PM Subject: Re: [Q-LIST] Re: Stablilty during taxi Larry, Ummmm, I hope I'm misunderstanding your intent, but you don't need +3, just zero at gross weight. The +3 was a new-construction guideline to make the wheelpant attachment.... Keep up the good work, David J. Gall ----- Original Message ----- From: "larry severson" <larry2@...> To: Q-LIST@... Subject: Re: [Q-LIST] Re: Stablilty during taxi Date: Mon, 27 Jun 2005 11:57:06 -0700 From Postma I've already pointed out the possibility of weak springs at the firewall to Severson. It is probably that I am weak, but my springs are a bear to hook up - on either side. I don't believe he has a bellcrank mod but may be wrong. It is installed! I will try to create a +3 degree camber, but I do have the big wheels. Larry Severson Fountain Valley, CA 92708 (714) 968-9852 larry2@... Quickie Builders Association WEB site http://www.quickiebuilders.org Yahoo! Groups Links Quickie Builders Association WEB site http://www.quickiebuilders.org Yahoo! Groups Links Quickie Builders Association WEB site http://www.quickiebuilders.org <?---- LSpots keywords ?><?---- HM ADS ?> _____ YAHOO! GROUPS LINKS * Visit your group " Q-LIST <http://groups.yahoo.com/group/Q-LIST> " on the web. * To unsubscribe from this group, send an email to: Q-LIST-unsubscribe@... <mailto:Q-LIST-unsubscribe@...?subject=Unsubscribe> * Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service <http://docs.yahoo.com/info/terms/> . _____
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