UA-RESURRECTED said:
is it really worth getting? Do you really need it if you're a career-minded pilot?
I see you fly a PA28-140. By now you have discovered that when you land a little off-center, you don't crash. The landing may not be purr-fect, but it's not so bad, and sometimes it's pretty as you please.
I don't know where you are in your training, but somewhere along the line, you have probably had these thoughts - maybe even encouraged by your instructor.
So you probably think it's ok to land a litle off-center. By off-center, I mean 2 things: (1) being off-center from the runway centerline, and (2) not having the nose
precisely aligned with the airplane's forward motion.
(1)&(2) are seperate, but inseperately related.
In (2) if the nose is
precisely aligned with the airplane's forward motion on initial touch-down,
and remains that way, throughout the landing roll until slowed to a safe taxi speed, there will be no side-load, or side ways force.
In a nosewheel airplane, since it is
designed with the CG forward of the landing gear, if the nose is off-center at touch-down, the CG being foward of the landing gear will pull the nose back into alignment with the runway. You are probably not even aware that the nose was a little off, just a degree or two, not in alignment with it's forward motion. The forward-pulling CG took care of that so you wouldn't even notice. Isn't that great to have such good engineering?
Good engineering, but bad for training. It's kinda like having training wheels on permanantly.
So, you say, in effect, if all the airplanes you're ever gonna fly are the kind with "training wheels" why bother?
Well,...sometimes, very rarely, but sometimes, the training wheels on these airplanes come off. By that, I mean, a very unusual "squirrely", gusty,crosswind/tailwind/windshear situation on touchdown may cause this well-engineered machine to not respond in the normal manner.
In a tailwheel airplane, the cg is
behind the main landing gear, so if your nose is not aligned on touchdown, the sideways force is multiplied. The cg pulls the tail around more. Instant rudder pressure action is required in exactly the right moment and exactly right amont of pressure. It's really no big deal. You do it when you walk. You put one foot
precisely in front of the other, with
precisely the right amount of pressure as you walk along in a purposeful manner. You're not thinking about it, but you're doing it. Because you practiced it. You fell down a bunch of times practicing it, but you got it, and by now you don't even think about it.
Same thing with landing an airplane. Any airplane.