---------------------------------------------------------- Rocket-List Digest Archive --- Total Messages Posted Sun 05/11/08: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 11:37 AM - Re: Gearleg fairings? (Im7shannon@aol.com) 2. 02:11 PM - Re: Gearleg fairings? (Jim Stone) 3. 03:33 PM - Re: Gearleg fairings? (nico css) ________________________________ Message 1 _____________________________________ Time: 11:37:50 AM PST US From: Im7shannon@aol.com Subject: Re: Rocket-List: Gearleg fairings? If it is not making it slower, it would be easier to install a trim tab on the rudder than make new intersect fairings. I guess I am just saying that because I am painting mine right now and I don't want to do any of this over after weeks of sanding! Kevin Shannon HR II Hey Fellas I've been flying my Harmon Rocket for a grand total of 5 hours now and all was going well until I put on the gearleg fairings and wheelpants. When I first flew it without the fibreglass bits she would pull to the left ever so slightly at full throttle and require very light right rudder to keep the ball centered. Now with the fairings and pants installed the ball is to the right about 3 ball widths and requires quite a lot of right rudder pressure to keep the ball centered.. I removed the wheelpants last night and flew it like that with no improvement, so I guess I have the gearleg fairings creating drag.Now my question is would it be the port (left) fairing creating the drag and the right one would be OK. or could they both be out. My theory is that they are mini airfoils and both could be creating pressure and trying to turn the ship around the center point. They look to be in line if you just eyeball them, and I was very careful (I thought) in aligning them with the airflow when installed, but the best laid plans and all that. I sure don't want to make another set of intersection fairings.Anyone have this problem? any suggested fixes? Thanks Chris F **************Wondering what's for Dinner Tonight? Get new twists on family favorites at AOL Food. (http://food.aol.com/dinner-tonight?NCID=aolfod00030000000001) ________________________________ Message 2 _____________________________________ Time: 02:11:57 PM PST US From: "Jim Stone" Subject: Re: Rocket-List: Gearleg fairings? 3 ball widths is beyond reasonable in my book. Remember, this equates to drag whether you trim it with rudder trim tab or not. I would consider all that gas you will waste over the life of the airplane and really try to determine the cause. I had a similar yaw from the fairings but mine was half a ball so I added a trim tab. Good luck, Jim Stone HRII 95 hrs ----- Original Message ----- From: Im7shannon@aol.com To: rocket-list@matronics.com Sent: Sunday, May 11, 2008 2:35 PM Subject: Re: Rocket-List: Gearleg fairings? If it is not making it slower, it would be easier to install a trim tab on the rudder than make new intersect fairings. I guess I am just saying that because I am painting mine right now and I don't want to do any of this over after weeks of sanding! Kevin Shannon HR II Hey Fellas I've been flying my Harmon Rocket for a grand total of 5 hours now and all was going well until I put on the gearleg fairings and wheelpants. When I first flew it without the fibreglass bits she would pull to the left ever so slightly at full throttle and require very light right rudder to keep the ball centered. Now with the fairings and pants installed the ball is to the right about 3 ball widths and requires quite a lot of right rudder pressure to keep the ball centered.. I removed the wheelpants last night and flew it like that with no improvement, so I guess I have the gearleg fairings creating drag.Now my question is would it be the port (left) fairing creating the drag and the right one would be OK. or could they both be out. My theory is that they are mini airfoils and both could be creating pressure and trying to turn the ship around the center point. They look to be in line if you just eyeball them, and I was very careful (I thought) in aligning them with the airflow when installed, but the best laid plans and all that. I sure don't want to make another set of intersection fairings.Anyone have this problem? any suggested fixes? Thanks Chris F ------------------------------------------------------------------------- ----- Wondering what's for Dinner Tonight? Get new twists on family favorites at AOL Food. ________________________________ Message 3 _____________________________________ Time: 03:33:46 PM PST US From: "nico css" Subject: RE: Rocket-List: Gearleg fairings? I'd say a three-balls width points to a serious rigging problem. Consider the amount of surface your rudder has to protrude into the airstream to produce that kind of yaw and you would appreciate the drag. If you add to that equation the arm of the rudder to the COG compared to the (much shorter) arm of the gear legs to the COG, it would illuminate the seriousness of the problem. I'd be surprised if it is the fairings but your account of the problem suggests that it is. Did anything else happen to the control surfaces since the installation? _____ From: owner-rocket-list-server@matronics.com [mailto:owner-rocket-list-server@matronics.com] On Behalf Of Jim Stone Sent: Sunday, May 11, 2008 2:09 PM Subject: Re: Rocket-List: Gearleg fairings? 3 ball widths is beyond reasonable in my book. Remember, this equates to drag whether you trim it with rudder trim tab or not. I would consider all that gas you will waste over the life of the airplane and really try to determine the cause. I had a similar yaw from the fairings but mine was half a ball so I added a trim tab. Good luck, Jim Stone HRII 95 hrs ----- Original Message ----- From: Im7shannon@aol.com Sent: Sunday, May 11, 2008 2:35 PM Subject: Re: Rocket-List: Gearleg fairings? If it is not making it slower, it would be easier to install a trim tab on the rudder than make new intersect fairings. I guess I am just saying that because I am painting mine right now and I don't want to do any of this over after weeks of sanding! Kevin Shannon HR II Hey Fellas I've been flying my Harmon Rocket for a grand total of 5 hours now and all was going well until I put on the gearleg fairings and wheelpants. When I first flew it without the fibreglass bits she would pull to the left ever so slightly at full throttle and require very light right rudder to keep the ball centered. Now with the fairings and pants installed the ball is to the right about 3 ball widths and requires quite a lot of right rudder pressure to keep the ball centered.. I removed the wheelpants last night and flew it like that with no improvement, so I guess I have the gearleg fairings creating drag.Now my question is would it be the port (left) fairing creating the drag and the right one would be OK. or could they both be out. My theory is that they are mini airfoils and both could be creating pressure and trying to turn the ship around the center point. They look to be in line if you just eyeball them, and I was very careful (I thought) in aligning them with the airflow when installed, but the best laid plans and all that. I sure don't want to make another set of intersection fairings.Anyone have this problem? any suggested fixes? Thanks Chris F _____ Wondering what's for Dinner Tonight? Get new twists on family favorites at AOL Food . href="http://www.matronics.com/Navigator?Rocket-List">http://www.matronhref "http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rocket-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Rocket-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/rocket-list Browse Digests http://www.matronics.com/digest/rocket-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.