I have to rest up for New Years... so I will leave you with some things to ponder.

These are some facts regarding the plane in this scenario.

-- The plane becomes a static object in relation to the atmosphere once it's speed is matched with the conveyor.

-- The atmosphere, or air, is the fluid required for aerodynamics in this case which is airplane flight.

-- Since the plane became a static object in relation to the atmosphere, there is either none or little air flowing toward and over the wings and fuselage. This basically brings the difference in velocity between the solid object(plane) and the fluid(air) to almost ZERO.

-- The plane has ZERO groundspeed once it's speed has been matched by the conveyor.




As you can see above - NO FLUID, NO LIFT.

...Lift is a mechanical force. It is generated by the interaction and contact of a solid body with a fluid (liquid or gas)...

Since the plane in our scenario matched it's speed with the conveyor, some of the forces required for lift either no longer exist, or have been significantly reduced and/or compromised.

Since the plane is not speeding down an actual runway and pushing itself forward at a rapid rate of speed ...we have lost these forces and they can no longer be used to factor in lift for the aircraft in our scenario.

We have also lost DRAG, or at least a sizeable and signficant portion. We have lost enough to the point that we now basically only have two other forces involved, WEIGHT and THRUST.

Now would be a good time to explore Relative Velocity.



As you can see, we will also have a problem with our airplane's Relative Velocity.

...A fixed object in a static fluid does not generate aerodynamic forces. Hot air balloons "lift" because of buoyancy forces and some aircraft like the Harrier use thrust to "lift" the vehicle, but these are not examples of aerodynamic lift. To generate lift, an object must move through the air, or air must move past the object...

We know that there is little or no air moving past the body and wings of our aircraft in the scenario. We know that a key factor in generating lift is calculationg the Relative Velocity.

Let's take a closer look....



Is it looking good for our plane in the scenario?

Here are some examples...





As we already know, our hypothetical scenario is about as far from a wind tunnel type situation as you can get without being parked in a hangar.

Some things to consider once everyone comes to the realization that once the plane and the conveyor match speeds, our plane is virtually stationary in relation to the atmosphere.