On Mon, 30 Mar 2015 07:27:22 -0400, Keyser Söze wrote:

On 3/29/15 4:01 PM, John H. wrote:
On Sun, 29 Mar 2015 14:04:23 -0400, "Mr. Luddite" wrote:
snipped

When taxiing on the ground you can turn make turns (although they tend
to be wide) using rudders only but the turn is because you have
deflected the rudder to one side. By adding some throttle, you cause
the prop wash to hit the deflected rudder which pushes the back of the
airplane in the opposite direction of the turn. That causes the front
of the airplane to turn in the direction you desire to go. The spring
loaded nose gear simply allows the tricycle landing gear to follow the
turn. For sharp turns, you use differential braking.

Very interesting. Thanks! Helps explain why they make steering rods for the Cessnas.

Some of the RC planes with a turnable nose geer also turn with rudder action. The
physics are basically the same as in the above paragraph, but without the
differential braking. Although, the bigger, more expensive planes have brakes, so
they may also use them for steering. I don't have one of those several thousand
dollar jobs.



So, this is what you have to contend with when flying that RC Cessna 172?

http://tinyurl.com/pvyg9t7


Yeah, pretty much. Of course for most of those it's done mentally, no gauges. And
since we're flying close to the ground, there is not a lot of time to waste in making
the decisions. With jets, and high speed warbirds, the speed may approach 100mph (not
scale), and because the planes are relatively small it's easy to lose sight of them
very quickly. Thus most of the warnings are 'audio', not visual. With FPV
multirotors, a lot more visual information can be transmitted to the headset.
--

Guns don't cause problems.
Gun owner behavior causes problems.