r4y30n Posted February 25, 2020 Posted February 25, 2020 In the following video from the Reapers, VHS mentions that you can accelerate faster with wings manually swept full aft, particularly at high altitude. I'm trying to wrap my ahead around the physics of that... Isn't the auto sweep program giving you max lift to drag ratio at any given speed? Does the reduction of frontal area make a bigger difference at low G?
lxsapper Posted February 25, 2020 Posted February 25, 2020 https://forums.eagle.ru/showthread.php?t=263116&page=2
sLYFa Posted February 25, 2020 Posted February 25, 2020 Sweeping wings aft will reduce the frontal area of your wings, at the cost of increasing induced drag (i.e. the drag caused by the wings generating lift), which generally results in a total drag increase. However, if you do not need lift (e.g. in a dive), induced drag will become zero and sweeping the wings back will indeed reduce the amount of total drag as compared to wings fully forward. So in short, sweeping wings aft only makes sense in an unloaded (i.e. zero g) flight situation. But don't forget to put them back in auto. i5-8600k @4.9Ghz, 2080ti , 32GB@2666Mhz, 512GB SSD
r4y30n Posted February 25, 2020 Author Posted February 25, 2020 Makes sense, thanks. He did mention a ballistic trajectory, I guess the idea is to do a long, unloaded high yo-yo at zero g?
RustBelt Posted February 27, 2020 Posted February 27, 2020 Pretty much. Trade Altitude for Airspeed. With the wings back the equation shifts more to your favor. Think about a falcon folding its wings in for a dive at a rabbit.
jcdata Posted March 2, 2020 Posted March 2, 2020 In the following video from the Reapers, VHS mentions that you can accelerate faster with wings manually swept full aft, particularly at high altitude. I'm trying to wrap my ahead around the physics of that... Isn't the auto sweep program giving you max lift to drag ratio at any given speed? Does the reduction of frontal area make a bigger difference at low G? The original MACH SWEEP programmer for the first 23 tomcats was programmed for maximum lift which in turn delay The sweep angle.. The problem with it was that it caused was much bending moments on to the wings. In other words, the tomcat could turn a whole lot harder!... They switched it back for the later tomcats for P sub Sent from my SM-N950U using Tapatalk
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