Aces High Bulletin Board

General Forums => The O' Club => Topic started by: Randy1 on September 19, 2016, 03:10:13 PM

Title: Big and little planes for what they are
Post by: Randy1 on September 19, 2016, 03:10:13 PM: https://www.youtube.com/watch?v=PAdCt6qgj9k&feature=em-subs_digest-vrecs (https://www.youtube.com/watch?v=PAdCt6qgj9k&feature=em-subs_digest-vrecs)

http://sploid.gizmodo.com/watch-a-gigantic-rc-fighter-jet-tragically-disintegrate-1786793021 (http://sploid.gizmodo.com/watch-a-gigantic-rc-fighter-jet-tragically-disintegrate-1786793021)
Title: Re: Big and little planes for what they are
Post by: Randy1 on September 20, 2016, 11:51:50 AM: The first video is real plane using R/C model jet engines with just enough room for a pilot and is smaller than the BD5 and 6.

The next video is what is thought to the largest jet R/C that disintegrates in mid air during a roll. Much bigger plane the first video.
Title: Re: Big and little planes for what they are
Post by: eagl on September 23, 2016, 09:06:47 PM: In the second one, you can just barely see right before it disintegrates that the plane is put into a bank and then rudder is applied. It looks like an "airshow pass", where it is banked and rudder is used to hold the nose up, like you would do for a knife-edge pass. It looks like the vertical stab ripped off from the stress of the full rudder application, and then the plane came apart from the aero loads from flying sideways.

Kind of like that airliner crash where the pilot applied full rudder during turbulence and ripped off the tail.

It looks to me like the airframe was too lightly built for anything but symmetrical loading and coordinated flight with very low sideslip angles.
Title: Re: Big and little planes for what they are
Post by: DaveBB on September 23, 2016, 10:19:58 PM: I slowed the YouTube video down to .25 speed, and that is exactly what happens. You see the rudder being applied, the vertical stab being torn off, and then the wings disintegrating. Good eye!