Originally Posted by nolo
Bolter, I have ATM open to the terminology section and there is no entry for "arcing" or even "arc." There is one for carving: "a turning of the skis with little lateral movement of the skis over the snow." As a point of fact, Horst did not believe in the existence of a pure carved turn. Nor did he believe in "round" turns--all turns are elliptical, he said. He's a real stickler for accurate terms.
Yes although not in the term section, pure carve
(Horst usage, I did not make it up) is
in the text. He devotes a section to it.
This area is the only place (that I know of) where ATM falls flat on it's face. ATM, Carving versus Skidding
page 18. "The issue (carve or skid) is not an either/or situation" That is wrong, the tail follows the tip or it does not. The skis are slipping or
they are sliding, period! He continues..."We must recognize that purely carved
turns exist only in the minds of superficial ski technicians." Also wrong, the pure carve
is a reality. He goes so far as to contradict himself buy talking about DTP
ATM is (IMO) the best PSIA publication ever
written. Excluding the fact that he correctly
dismisses the pure carve. He is absolutely right (by definition) in the frame work of the spectrum (Pivot is a component) of skidding to carving, the skidded Christy will never evolve into the pure carve
. IMO he did not know what to make of it and had little use for pure carve
in the student centered system of ATM.
Carving and ATM. DTP be damed!
From its inception the ATS (ATM) of PSIA is rooted in three principles: A student- centered holistic teaching Methodology, The skills concept of Mechanics and the most revealing, if not at first obvious . . .Slipping skis as the innate base of support, see: ATM page 11 for illustration.
Slipping skis are at an angle to the Direction Of Travel (DOT). Sliding skis are parallel to the DOT. Both slipping skis and sliding skis leave distinct signature tracks in the snow. Slipping scrubs a pattern across the DOT. Sliding presses a track parallel to the DOT.
Slipping combined with edging has a potential for high amounts of friction. The friction potential of slipping and all skidded turns is crucial for ATM’s Methodology/Mechanics. It offers speed control at all levels of achievement.
The slipping ski is rudimentary to the ATM progression. Slipping starts in the Preliminaries as the gliding/breaking wedge and with skill development (steering) becomes the wedge turn. The Wedge Christie introduces parallel skidding skis. Parallel Christies follow, and with high levels of performance (development) become carved turns (a.k.a. Refined Skidded Christies).
In ATM the sliding ski is investigated in the straight run, abandoned until seen again in the traverse, and then only as an exercise/tactic. With skill integration (development) and a return to slipping skis a forward side slip is produced.
In carved turns (as in all skidded turns) steering determines the skis angle to the DOT.The greater the skis angle to the D
OT: the more skidded the turn will be, the higher the amount of friction, the lower the speed and the lower the ability to control the DOT (except, high performance slipping skills integration)The smaller the skis angle to the DOT
:the more the ski will carve, the lower the friction, the less momentum that is lost and the grater the ability to control the DOT
The skidded turn is an attribute of contemporary ATS that is intrinsic to its methodology. Students (customers) need to control direction and speed. The friction/deflection benefits of skidded turns fit that need. And so . . . while turning, speed is scrubbed off, momentum is lost and confidence found.
The carved turn, due to its origins, will never evolve into an arc. It is predisposed to unending refinement. I look at carving in the same terms as numbers approaching infinity. There is always one more, it can never be reached. It is also like halving the distance between two points again and again and again. The distance shrinks but some amount always remains. The two points never meet.
Some ATS Credos . . .
Turning (Direction Change) involves Turning (Rotary) the skis
"If I don’t turn (Rotary) my skis, I will go straight!"
(Jane’s little ditty) Roses are red, Violets are blue . . . Rotary, rotary, rotary.