It is generally accepted within the art that enhancement of one aerodynamic quality is possible by trade-off of other aerodynamic qualities.įor instance reduced drag can be achieved while stall performance is sacrificed, higher lift is possible, but usually at the expense of increased drag, stall performance can be improved, but lift or drag performance suffers, overall performance can be improved at some angles-of-attack or at some Reynolds number while accepting reduced performance at others.Īn antecedent for the present invention is high aerodynamic performance possible in flight of animals particularly high attack angles in insect flight. In the past century extensive research with single cambered surface airfoils has provided numerous airfoil designs that optimize aerodynamic performance under given conditions. However, these features are of small size compared to the overall profile of the airfoil and do not alter their general character of a single camber and a single maximum thickness area enclosed by areas of decreasing thickness toward both leading and trailing edges. Various minor profile protrusions or indentations have been used to aid airfoil performance by inducing early transition or by introducing local separation to energize the boundary layer to delay separation.
Prior art teaches that, concave sections and raised protrusions are to be avoided because it is generally believed such features create drag and reduce aerodynamic performance. Single maximum thickness dictates that prior art airfoil's chordwise surface profile be single cambered although single reflexed cambered surfaces with one, two or more convex or concave curves may be used. To the present time known airfoils have been designed with a single maximum profile thickness, the object being to retain a smooth streamlined profile.
Inasmuch as this invention is equally applicable to hydrofoils, the term "airfoil" is herein construed to include both airfoils and hydrofoils. Interlude : E A E A 2x C G C G C G C EmBalik ke *, Reff 2xCoda : GĬ EmSeems like everybody's got a price Am I wonder how they sleep at night, when the sale comes first FAnd the truth comes second, just stop for a minute and C Smile Em Why is everybody so serious AmActing so damn mysterious, you got your shades on your eyes FAnd your heels so high, that you can't even have a good C Time Em Everybody look to their left Am Everybody look to their right, can you feel that (yeah) FWell pay them with love tonightĬ It's not about the money, money, money Em We don't need your money, money, money AmWe just wanna make the world dance F Forget about the price tag C Ain't about the (ha) Cha-Ching Cha-Ching Em Aint about the (yeah) Ba-Bling Ba-Bling AmWanna make the world dance FC Forget about the price tagĬ Em We need to take it back in time Am When music made us all unite F And it wasn't low blows and video C Am I the only one getting.This invention relates to airfoils used for lift, down pressure, stability, control or propulsion of aircraft, watercraft and other vehicles, fans, turbines, wind generators and other devices that act in and upon fluids, and more particularly to wings both stationary and rotatingtailplanes, canards, rudders, propellers, rotors, vanes, and impellers. Reff : G F CTerlalu manis untuk dilupakan Am Em F CKenangan yang indah bersamamu tinggalah mimpi G F CTerlalu manis untuk dilupakan Am Em F CWalau memang kita tak saling cinta takan terjadi G CHari berganti angin tetap berhembusEm F CCuaca berubah daun-daun tetap tumbuhG CDan kata hati ku pun tak pernah berubahEm F CBerjalan dengan apa adanyaĭ Am* Dimalam yang dingin dan gelap sepiD Am F C Benak ku melayang pada kisah kita
G CKu ambil gitar dan mulai memainkanEm F CLagu lama yang biasa kita nyanyikanG CTapi tak sepatah kata yang bisa terucapEm F CHanya ingatan yang ada dikepala Lirik, Kunci gitar, Chords Gitar, Kord Gitar Slank - Terlalu Manis :Intro : G C G C 2x Reff :F G C E cinta yang ku puja entah kemana F G Ckuharus relakan F G C Am dan bila cintamu tlah menghilang Dm F Gkuberharap kenanglah akuį G C E cinta yang ku puja entah kemana F G Ckuharus relakan F G C Am dan bila cintamu tlah menghilang Dm F G Ckuberharap kenanglah aku Reff : F G C E cinta yang ku puja entah kemana F G Ckuharus relakan F G C Am dan bila cintamu tlah menghilang Dm F Gkuberharap kenanglah aku
Reff : F G C E cinta yang ku puja entah kemana F G Ckuharus relakan F G C Am dan bila cintamu tlah menghilang Dm G Ckenanglah akuĬ E Am C jiwa yang amat berduka F Am Dm Gberderai tetes air mata C E Am Gmencoba tuk mengenang cintamuF G Csampai kapanpun kan selalu cinta Lirik, Kunci gitar, Chords Gitar, Kord Gitar Zigaz - Kenanglah :Intro : Cm C Cm F Fm CĬ E Am Gkuterlelap dalam rasa F Am Dm Cdalamnya apapun kian terasa C G Dm Cair mata dan kepedihan hati Dm G Fmengisi hari-hariku tanpamu
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