THERMALLING A NECESSARY EVIL A CHANCE TO GET AHEAD A MENTAL CHALLENGE STICK AND RUDDER SKILLS.
-
Upload
abraham-campbell -
Category
Documents
-
view
216 -
download
0
Transcript of THERMALLING A NECESSARY EVIL A CHANCE TO GET AHEAD A MENTAL CHALLENGE STICK AND RUDDER SKILLS.
THERMALLING
• A NECESSARY EVIL
• A CHANCE TO GET AHEAD
• A MENTAL CHALLENGE
• STICK AND RUDDER SKILLS
SO THAT’S WHAT A THERMAL LOOKS LIKE!
A MATTER OF SCALEA MATTER OF SCALE
SECONDS @ 60 KTS
00 22 44 66 88 1010
TIMING THE TURNTIMING THE TURN
• VARIO
• FEEL
• VISUAL CLUES
TURNING TOO SOONTURNING TOO SOON
TOO LATETOO LATE
JUST RIGHTJUST RIGHT
WHICH WAY TO TURN?
A B C
DAMN – TURNED THE WRONG WAYDAMN – TURNED THE WRONG WAY
• A THERMAL MAY BE APPROACHED RADIALLY A THERMAL MAY BE APPROACHED RADIALLY OR TANGENTIALLYOR TANGENTIALLY
• A RADIAL APPROACH GUARANTEES A WRONG A RADIAL APPROACH GUARANTEES A WRONG DIRECTION TURNDIRECTION TURN
• A TANGENTIAL APPROACH HAS A 50% CHANCEA TANGENTIAL APPROACH HAS A 50% CHANCE
• THE PROBABILITY OF TURNING THE PROBABILITY OF TURNING CORRECTLY IS 1 IN 3CORRECTLY IS 1 IN 3
THE FREE CORRECTIONTHE FREE CORRECTION
CENTERINGCENTERING
INITIAL INITIAL CIRCLECIRCLE
WORST VARIO HEADING
TRUE WORST HEADING
ROLLOUT HEADING
NEW CIRCLE
LANDMARK
GUSTS AND THE TE VARIO
• GUSTS CHANGE THE K.E. OF THE GLIDER
• THE TE VARIO MEASURES ENERGY
• TE VARIOS ARE GUST SENSITIVE!