TBDude wrote:
quemerford wrote:
UK CAA requires aircraft in the 'complex' category to have Design Authority support: in this case BAe for airframe and Rolls-Royce for engines.
Very interesting.
I briefly wondered how so many types from defunct companies could still be flying until I realized you specified the "complex" category. I suppose privately operated warbirds don't get too much more complex than a Vulcan!
Covered under CAA CAP632 (Operation of 'Permit-to-Fly' ex-military aircraft on the UK register):
* Simple: single piston engine types.
* Intermediate: multiple piston engine or turbine (single or multiple) engine types with simple mechanical flying controls or with power controls having an independent back-up system which ensures continued safe flight.
* Complex: all other types, in particular those types having features which require a high degree of specialised knowledge and equipment to maintain (e.g. types with no independent backup system to powered flying controls or with auto-stabilisation systems or electronic engine controls).
I think there's a separate reference to Design Authority support being required for Complex aircraft. But it is indeed why no Lightnings fly in the UK, or Harriers, Buccaneers etc. I suspect the same may also apply to the Tucano, but strangely, not the Hunter, Gnat or F-86A. The latter do feature manual primary flying controls to an extent, and last time I checked, the F-86E/F fell into the 'Complex' category for the reason that these variants don't.
However, since the F-86E/F does have a battery-powered backup hyd pump, I do wonder if there's room for some discussion with the CAA?
