ÿT£S&TLÿbT®þÿT VT&Arial®þÿT VT&Arial®þÿT VT&Arial®þÿT ZT @ZT ZT ZT ZT  ZT ZT ZT  ZT ZT ZT ZT ZT @ ZT ZT @ZT ZT   _\T     kTikTkT;kTvkTßkT kTßkT;kT UkT ikT ¾kT ikT ¾kT;fTÿ1$ÿoTPTgTt  à=Ð/Ð8  à=Ð/Ð8d#T  à=Ð/Ð8d&ò%ò8Drag Force -- Hp -- Thrust -- Drive Weight NeededVersion( 09-28-06 )# - - - - - - - - - - - - - -# - - - - - - - - - - - - - -# - - - - - - - - - - - - - -# - - - - - - - - - - - - - -# - - - - - - - - - - - - - -# - - - - - - - - - - - - - -# - - - - - - - - - - - - - -# - - - - - - - - - - - - - -#  - - - - - - - - - - - - - -#  - - - - - - - - - - - - - -#  - - - - - - - - - - - - - -#  - - - - - - - - - - - - - -  - - - - - - - - - - Abbreviations Used:@( Note: This part on Drag Force and HP requirements uses)-A = Vehicle frontal area in square ft.<(formulas from HOT ROD magazine, March 2006 page 37)CD = Coefficient of dragD = Drag Force (pounds)! HP = Rear-wheel horsepowerl R = Rolling Resistance (0.008 is a good value for highway speeds; over 150 mph maybe double to 0.016) V = Vehicle speed (MPH)" W = Vehicle weight (pounds)  QA vehicle's total drag force at a given speed can be projected by using: +D = ( A X Cd X V sq.) divided by 410Drag Force  = A X Cd X  V sq uared / 410.ŽÁùœŠ@€€€€ €€€€  š [T  8@[T  >@[T  €k@[T  y@ <==== Enter A, CD and V   A CdV# - - - - - - - - - - - - - -# - - - - - - - - - - - - - -# - - - - - - - - - - - - - -# - - - - - - - - - - - - - -# - - - - - - - - - - - - - -# - - - - - - - - - - - - - -# - - - - - - - - - - - - - -# - - - - - - - - - - - - - -#  - - - - - - - - - - - - - -#  - - - - - - - - - - - - - -#  - - - - - - - - - - - - - -#  - - - - - - - - - - - - - -  - - - - - - - - - - KTo figure the rear-wheel HP to run a speed use one of the following:2HP =( A X Cd X V cubed ) divided by 146,625Horsepower  = A X Cd X  V cu bed /1466257ý¯@ÆòV€@'€€€€ €€€€ €€  €€ [T 8@[T >@[T €k@[T æA <=== Enter A, Cd,and VA CdV( or use the next one), HP = [(W X R) + D] X V divided by 375"Horsepower " =  "[(W X "R) + "D X" V divided "by 3751#7Ðiv€@!€€€€ €€ €€ €€ [T #p§@#ü©ñÒMb?[T #Š@[T #€k@[T #pw@ # <=== Enter W, R, D and V$W$R$D$V#& - - - - - - - - - - - - - -#& - - - - - - - - - - - - - -#& - - - - - - - - - - - - - -#& - - - - - - - - - - - - - -#& - - - - - - - - - - - - - -#& - - - - - - - - - - - - - -#& - - - - - - - - - - - - - -#& - - - - - - - - - - - - - -# & - - - - - - - - - - - - - -# & - - - - - - - - - - - - - -# & - - - - - - - - - - - - - -# & - - - - - - - - - - - - - - & - - - - - - - - - - t'Now we can take the HP required to run a speed and with the speed figure the thrust and from that figure the q(weight needed on the drive wheels for different salt conditions ( friction coefficients ). Notice that thel)more aero the vehicle (doesn't need as much HP to go fast) the lower the thrust which results in less)*weight needed on the drive wheels. + Knowing Thrust  +  + Knowing Thrust  +  + Knowing Thrust , We can now  ,  , We can now  ,  , We can now2-The next formula breaks horsepower into its - - - - - - Figure the  -  - Figure the  -  - Figure the =.relationship with thrust (lbs force) and speed (mph). . . . . . . Weight needed  .  . Weight needed  .  . Weight needed / on drive wheels  /  / on rear wheels  /  / on rear wheels0Thrust (lbs force) 0 = 0HP 0 Times[T 0pw@0Divided by 0Speed 0 for a .6 friction  0  0 for a .5 friction  0  0 for a .4 friction 0 0 1 coefficient 1 coefficient 1 coefficientI2 (To Find Thrust enter the "HP" and the "Speed" for up to 3 cases.)3Thrust (lbs force) 3HP 3Speed 3Weight In Lb.  3 3Weight In Lb.  3 3Weight In Lb."4 |@€€w €€  4 =[T 4Àr@ 4 Times[T 4pw@4Divided by[T 4@o@ 4p‡@ø¿€333333ã?   4 4 Œ@ö¿€à?   4 4”‘@ô¿€š™™™™™Ù? "5 Œ@€€w €€  5 =[T 5À‚@ 5 Times[T 5pw@5Divided by[T 5@o@ 5p—@ø¿€333333ã?   5 5 œ@ö¿€à?   5 5”¡@ô¿€š™™™™™Ù? "6•@€€w €€  6 =[T 6 Œ@ 6 Times[T 6pw@6Divided by[T 6@o@ 6”¡@ø¿€333333ã?   6 6¥@ö¿€à?   6 6^ª@ô¿€š™™™™™Ù? X8Note: You can only get a certain amount of thrust for a specific HP at any speed. 9d:( *** If you know the HP needed to run one speed and need to know how much HP you would *** )\; ( ***need to run another speed then refer to the "HORSEPOWER NEEDED SPREADSHEET.*** ) < = = = > > ? @ A A B B C C D E E E  E  E  E F G G H H I J K K K K K  K  K  K L L L  L  L  L