I just do not understand what you guys mean when you say SNAP. I understand most stuff but like saying a plane just snapped i don't know what that means. Probabaly happened to me at one time but don't know. I understand roll to right or left. Up or down but not snap. Please someone enlighten me as to where i am not such a dummy.

a snap roll it when the model makes quick complete roll and maintain it's flight path.
verse a barrel roll, or 4 piont roll,or a 8 piont roll

a snap stall is when the model wanna make quick snap roll but stall instead.
a cammon term used for pilot error..my plan "snap".lol

Well there is a long definition of it but if you come in to land and your approach is to slow and your plane rolls over on its back and goes in nose first, you just "snapped/stalled etc."

http://www.youtube.com/watch?v=hrE_NFCJdgA

here ya go http://www.youtube.com/watch?v=S-8A4eDnz68 ,

Austin

A snap roll is really a spin when the aircraft is moving across the horizon. If your aircraft is set up for acro type flying, you should be able to snap roll it by adding full elevator (stick back) and full rudder at the same time. I think what you are referring to is when someone says the plane is snappy, they are talking about the fact that some airplanes will enter a stalled/yaw/rolling situation when a little too much elevator is applied..

Geez, people Geardaddy gave the only right answer. A snap roll is simply a horizontal, one turn spin. Full up elevator, and full ailerons and rudder (in the same direction) are applied until the wing stalls. Some planes are hard to snap or won't snap at all. Trainers usually fall into this category.

If a plane loses too much airspeed, the wing will stop producing lift. Usually, it will fall off to one side or another. This is a stall which is usually followed by a snap roll/spin if correction isn't applied quickly.

A "snappy" plane is one which stalls easily and usually at a higher-than-expected airspeed. Aerobatic planes are often this type.

Dr.1

We use the term snap for lots of things. But all of them happen quickly as you'd guess. And usually are applied to unexpected roll behavior.

As DaRock said its a loosly used term. angle of attack(nose to high) and airspeed(plane to slow) can induce one wing to stall sooner than the oposite(rudder input increases this tendancy SOMETIMEs on purpose) so if a plane tends to drop a tip on a slow approach it might get labeled "snappy". do this on purpose up high its fun

to execute a snap roll it's throttle down full up elevator, full lt or rt rudder and aileron same as rudder..it's an exterme move...a roll that happens as fast as a snap roll is a ....snap

to execute a snap roll it's throttle down full up elevator, full lt or rt rudder and aileron same as rudder..it's an exterme move...a roll that happens as fast as a snap roll is a ....snap

Unless you are doing a negative snap. Also the plane must show a break (you must see the attitude of
the airplane change to nose up or down before the rotaion). No break= a roll, no matter how fast it is.

lets use the kiss principle when we explain things to the new guys..

Never kissed a principle before couple teachers but no principles. lol.
Thanks guys just trying to learn what some of the common used words to describe stuff on here actually means. Now YAW i don't know about either. That is what I do when I am tired lol.

rudder for u yawll..lol

a snap roll
http://uk.youtube.com/watch?v=DPy3LXzhZTo&

yaw is an aerodynamic term.

I know, most aerodynamic terms are usually hard to spell. But that one is easy to spell and not really hard to explain. And while I'm at it...........

An airplane rotates around three axes. (To keep you from asking, "axes" is the plural of the geometry term "axis" and if you don't know, look it up. We're trying to kiss this off, here.)
If the nose goes up or down, it's changing it's pitch axis. And that's called pitching.
If the airplane rolls, it's doing it on it's roll axis. And that's called rolling.
And taa daa..... If it's nose moves to either side, that's yaw and is being done on the yaw axis.

Simple enough for even a principal to understand? Most basic principles are.