here they are
Flying MachineRequirements:Level 70, Riding Skill (150), Engineering (350)Speed Increase:60% flight speed increase
Turbo-Charged Flying Machine
Requirements:Level 70, Artisan Riding Skill (300), Engineering (375)
Speed Increase:280% flight speed increase
And here is the link to the official gallery WorldofWarcraft.com -> Info -> Flying Mounts -> Flying Machines