Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Thrust Angle






The front wheels aim or steer the vehicle, but the rear wheels control tracking. This tracking action is related to thrust angle. Thrust angle is defined as the path that the rear wheels will take. Ideally, the thrust angle would be geometrically aligned with the body centerline.