Larry Dighera wrote:



Full nose up trim is immediately apparent on the application of power.


Mmmm, that sounds like the voice of experience.

Any of your basic singles like most Cessna's, Cherokees, my Bonanza,
when you add power with full nose up trim the yoke comes right back to
you. This in no way makes the plane unflyable.



Wouldn't the aircraft have to reach some speed on the takeoff roll
subsequent to the application of power before the control force would
be apparent on the yoke? Or are you referring to another indication?

Nope, you notice it right away. The yoke is not where it's supposed to be.




I would think it is possible with some effort. What would be your
estimate of the required effort in pounds of push on the yoke to
overcome full up trim in a C-172?

Not sure of the exact amount but that is a certification requirement.
My 182 got pretty sporting if you had to do a go around. Since I mostly
flew alone it was a nose heavy airplane and I always landed with full
nose up trim. Not sure how to characterize how much force was required.
Let's say significant.