....I think it is entirely possible to fly a wheeled helicopter just like a fixed-wing plane... That's the way it was supposed to be done, back in the day. This is'nt written in stone anywhere, just the way it was while I was involved, "Vertical Envelopment" ops aside. VE ops did'nt quite work out the way the smart people thought they would, otherwise things'd indeed be different, my guess. ... On 3/30/17, Sean Breheny wrote: > Helicopters have two distinct flying "modes" depending on how much forwar= d > speed you have. Above a certain speed threshold, they behave almost exact= ly > like a fixed-wing aircraft, except for some much larger gyroscopic effect= s. > Below the threshold (hover and transitioning to/from hover) the dynamics > change dramatically, inherent stability is lost, and it feels like trying > to keep a marble centered on an upside-down bowl. > > The above applies only to traditional helicopters which perform their > flight controls using a swashplate, articulated blades, etc. or the > Bell-Hiller system. It would be easy to make a fly-by-wire helicopter whi= ch > did not display the above discontinuity. > > I think that the general behavior was in part dictated by technology > limitations (no inherent stability in hover) and in part by intention > (making the mid-flight behavior as similar to a fixed-wing aircraft as > possible). > > I think it is entirely possible to fly a wheeled helicopter just like a > fixed-wing plane (rolling take-off and landing) if you never need to hove= r > or auto-rotate. > > Sean > > > On Thu, Mar 30, 2017 at 9:16 AM, peter green wrote= : > >> >>Do **NOT** attempt horizontal landings !!! http://www.aviation.com/wp= - >> content/uploads/2015/02/V-22.jpg >> >And once you have landed make sure there is a tractor to pull you to >> your parking spot ... >> >> AIUI helicopters frequently land much like aircraft either landing on >> their wheels if they have wheels and are landing on a runway or coming >> into >> a ground effect hover just before they touch the ground. Coming in >> vertically is possible but risky and fuel hungry. Helicopters with wheel= s >> can taxi on the ground. >> >> From looking on youtube it looks like when taxing and taking off from a >> runway the V22 operates with the proprotors almost but not quite vertica= l >> and when landing it operates with them vertical. >> >> https://www.youtube.com/watch?v=3D3zfbgadNdmM >> >> https://www.youtube.com/watch?v=3DYEYOTv0v058 >> -- >> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .