[RCSE] Re: Soaring V1 #6653: Just a moment?
On Monday 07 November 2005 01.22, David Nasatir wrote: What will be the flight behavior consequence of a very long tail moment? Hi, David Two things happen, which has - more or less - the same effect: As the power of the tail is tail arm length times the tail area, you'll get a powerful tail, but due to the long tail arm's weight you will get some inertia effects, too. So when the wing is lifted by a thermal the tail will make the wing pitch up more than with a shorter tail with the same tail volume, as one says (tail arm length, times tail span, times tail chord is tail volume). If the tail area is normal the same will happen, but this time due to the longer tail arm, with its greater inertia, and the higher tail volume! So stabler flight more powerful elevators, that's the main effect - unless there are tail boom bending/flutter problems :-)! More like a B-52 than a Fighting Falcon ... I believe it was about 1946 when I first realized that there is often a substantial distance between the way I envision things and the way they turn out after I have actuallty built them. It doesn't matter too much (at least to me) however, as I enjoy the process ... I seem to have been in the same class, as my sketches seldom look like the finished product (I usually do a new sketch afterwards, using the finished product as the model - makes the sketch and model look much more the same). Lately I worked mostly with aluminium and stainless bolts - yeah, not model aircraft, but rigs and other stuff for my small boat ... Tord RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
[RCSE] A tall tale?
Hi, How are your eyes doing? You have to take care when out in the sun, allways :-)! Not much sun here just now - very, very, grey and raining most of the time, in short typical West Coast November weather! There is another factor, that I forgot to factor in, about tall fuselages (usually equals long tails), and that is surface drag. Eventually the tail feathers can be very small, due to the combined effects of tail volume and surface drag, till it is about enough with just the tail boom! Of course, that then has to be movable, maybe pivoted at CG, with the forward hull as counterweight :-)! Or make it like a spine, like some prehistoric flying creature's tail, that can be whipped from side to side! Tord RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
[RCSE] Houston, TX
Hey Folks ! Who / where Can I contact for info, soaring, Houston Area? websites ? TNX CJ --Jack Strother Granger, IN LSF 2948 LSF Level V #117 LSF Official 1996 - 2004 CSS Gold
[RCSE] Re: Soaring V1 #6657
Houston Hawks: http://houstonhawks.org/ - Dave R Hey Folks ! Who / where Can I contact for info, soaring, Houston Area? websites ? TNX CJ RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
[RCSE] Re: New Ky DS Record Set Today in Frankfort!
I know you're supposed to be pretty committed when you go in, but what's a good way to get started? I felt like I bled off all my energy before I even got started. By committed, it usually means having enough speed (energy) and diving deep enough to punch through the boundary layer. Think of it as the back side having three layers. Top layer is the air going in the same direction as the prevailing wind. Layer two is the boundary layer which can sometimes be a fairly ugly rotor. Layer three is below the rotor in what hopefully either calm air or even better, air going back up the hill. One of the most common problems when you are trying to learn to DS is to not dive deep enough to get through the boundry layer. The plane spends the whole time in the air that's going all over the place. When you don't go deep enough to get out of boundry layer, it just sucks all the energy out of your plane. It's really like putting on the brakes. It sounds like that is what was happening to your plane. Also, don't go back to far. Try to keep it close to the hill. Sometimes if the wind direction isn't correct, the rotor is the whole back side of the hill. If you aren't carrying lots of energy when you dive in, you won't make back to the top. Don't keep trying if it is like this. I hope this helps. Randy RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
RE: [RCSE] Re: New Ky DS Record Set Today in Frankfort!
Since I'm a DS virgin, take this post with a grain of salt. I think Randy makes an excellent point. I got to witness Jack Cooper DS'ing off of the Wilson dam. The layers Randy speaks about were easy to see since I was standing right next to Jack and the back side of the dam is only 50-100 deep. If he didn't dive deep enough the plane wouldn't gain energy. It was obvious that there were layers just like Randy says. Jacks plane would literally bounce off of the 'best' layer if he didn't keep the nose down a little longer than where the 'resistance' from the upper layer would try to push his plane back up the hill. About the only better way to witness watching what I saw was if the layers were colored. It was very obvious to me where the layers were. Next time I'm at Wilson, I'll give DS a try. I've got a Mini Destiny that should be perfect for it. George -Original Message- From: Randy Bullard [mailto:[EMAIL PROTECTED] Sent: Monday, November 07, 2005 2:00 PM To: RCSE Subject: [RCSE] Re: New Ky DS Record Set Today in Frankfort! I know you're supposed to be pretty committed when you go in, but what's a good way to get started? I felt like I bled off all my energy before I even got started. By committed, it usually means having enough speed (energy) and diving deep enough to punch through the boundary layer. Think of it as the back side having three layers. ... RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
RE: [RCSE] Re: New Ky DS Record Set Today in Frankfort!
One of the most common problems when you are trying to learn to DS is to not dive deep enough to get through the boundry layer. This probably is what I did, coupled with getting too far from the back of the dam - I write that off to lingering in the top layer you described. Hopefully I get some opportunities to work this out over the Winter months here - if my hands can take it (still cold from yesterday). Thanks again, Brent www.daytonsoaring.org *I added a pic of the frontside here to the rotating pics on the welcome page RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
[RCSE] Re: New Ky DS Record Set Today in Frankfort!
Hey Brent: Here's a great resource on DS: http://www.charlesriverrc.org/articles/flying/markdrela_ds.htm Hang on tight! Once you've gotten in the groove, front side lift just won't do it anymore. Be forewarned! I know, It's just flying in circles. But the most intense circles you'll ever fly -- particularly with glass! -- Rudy Siegel Civis Aerius Sum Soaring Soaring@airage.com wrote: RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
Re: [RCSE] Re: New Ky DS Record Set Today in Frankfort!
If you ask the MA editor, you will note that soaring is just like CL. So there should be more CL covreage in MA... ;-) [EMAIL PROTECTED] wrote: Hey Brent: Here's a great resource on DS: http://www.charlesriverrc.org/articles/flying/markdrela_ds.htm Hang on tight! Once you've gotten in the groove, front side lift just won't do it anymore. Be forewarned! I know, It's just flying in circles. But the most intense circles you'll ever fly -- particularly with glass! -- Rudy Siegel Civis Aerius Sum Soaring Soaring@airage.com wrote: RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format . RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
RE: [RCSE] Re: New Ky DS Record Set Today in Frankfort!
Better cheaper to take up shooting heroin...less addictive from what I've heard. Know known cure as of this date. Ask Barney, he knows. He does both from what I've observed. Wy better at shooting heroin though. Cliff -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Monday, November 07, 2005 5:44 PM To: Soaring@airage.com Subject: [RCSE] Re: New Ky DS Record Set Today in Frankfort! Hey Brent: Here's a great resource on DS: http://www.charlesriverrc.org/articles/flying/markdrela_ds.htm Hang on tight! Once you've gotten in the groove, front side lift just won't do it anymore. Be forewarned! I know, It's just flying in circles. But the most intense circles you'll ever fly -- particularly with glass! -- Rudy Siegel Civis Aerius Sum Soaring Soaring@airage.com wrote: RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
[RCSE] Fazer for sale (NIB)
Fazer for sale (Red and Black NIB) $1100. I wound up with 2 of them, but only need the one I'm flying (I could part with that one if someone needed a Fazer ready-to-fly. It's Green and Red. D368's with Greening mounts). Ben Clerx [EMAIL PROTECTED]
[RCSE] Wings, who needs wings, Part II
http://www.bird-man.com/?n=windtunnelnose=6 Engines similar to those used by the large scale B52. Cheers, Bill --- It is no bad thing to celebrate a simple life.B. Baggins Bill Johns Colton, WA RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
Re: [RCSE] Just a moment?
It is also possible to cause stability problems. Over stable can make the wing spiral down if it is yawed too much. Especially if it is a poly where you are using the rudder as primary roll control and more likely ot apply a lot of it. How do I know. I've done it. Nasty, nasty tip stall like behavior with the plane spiralling around a wingtip. Oddly enough, I believe I solved the problem by reducing rudder throw. Go figure... Tom Koszuta Western New York Sailplane and Electic Flyers Buffalo, NY So stabler flight more powerful elevators, that's the main effect - unless there are tail boom bending/flutter problems :-)! RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
[RCSE] Source for multiplex connectors
Looking for source to order multiplex servo connectors TIA Stan RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
Re: [RCSE] Re: New Ky DS Record Set Today in Frankfort!
Randy- Thanks for the advise. I'm going to try to get below the boundary layer when the winds cooperate, as you recommend. Do you have any experience with guys double-dipping? I hear it is a method of ~doubleing-up~ on the receipt of energy from the onrushing winds? Everytime I've tried it, I either lose the energy I went in with, or I end up with the same old boundary layer (I mean Board of Directors). So, what say you Mr. Bullard, any advise for us newbies? Your long-time pal and very best friend, RazMoTaz Capitola, CA - Original Message - From: Randy Bullard [EMAIL PROTECTED] To: RCSE soaring@airage.com Sent: Monday, November 07, 2005 11:59 AM Subject: [RCSE] Re: New Ky DS Record Set Today in Frankfort! I know you're supposed to be pretty committed when you go in, but what's a good way to get started? I felt like I bled off all my energy before I even got started. By committed, it usually means having enough speed (energy) and diving deep enough to punch through the boundary layer. Think of it as the back side having three layers. Top layer is the air going in the same direction as the prevailing wind. Layer two is the boundary layer which can sometimes be a fairly ugly rotor. Layer three is below the rotor in what hopefully either calm air or even better, air going back up the hill. One of the most common problems when you are trying to learn to DS is to not dive deep enough to get through the boundry layer. The plane spends the whole time in the air that's going all over the place. When you don't go deep enough to get out of boundry layer, it just sucks all the energy out of your plane. It's really like putting on the brakes. It sounds like that is what was happening to your plane. Also, don't go back to far. Try to keep it close to the hill. Sometimes if the wind direction isn't correct, the rotor is the whole back side of the hill. If you aren't carrying lots of energy when you dive in, you won't make back to the top. Don't keep trying if it is like this. I hope this helps. Randy RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
[RCSE] LSF News
Updated content on the LSF website: Officer nominations open from now until Midnight November 30. http://www.silentflight.org/Vote_Elections/default.html Level Updates and other news: http://www.silentflight.org/LSF_Base/news.htm Coming soon, Nats Planning Meeting Report, Online Store to buy your LSF merchandise on the web. Tom Kallevang Wheeling, IL LSF President Webmaster LSF #303 Level V #103 AMA L292 SOAR (Chicago) __ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
