The Ch47 has the front disc set at a 9-degree forward cant angle, and the rear disc is set at 4 degrees. longitudinal control comes from altering the collectives at each of the rotors, not altering the disk TPP. So the highest point on the rear rotor disk is always at the rear of the helicopter., same for the front disk. variation of the disk from the offset comes from flap back, which is speed dependent.
”variation of the disk from the offset comes from flap back, which is speed dependent”?
So why does the chinnie have a level fuselage attitude throughout the speed range then, and how does ‘positive stick gradient’ work? (Both disks will tend to flap back at different rates and create differing translational lifts won’t they?)
I may look once again at the video, however even if it
is a ‘deep fake’ I didn’t see anything wrong with either the orientation or rotation of the blades.