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ROLLOVERS AGAIN ? Yes: 10 in 1 month!

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RoyLauris
20 diapositives · 553 Views · Jan 05, 2011

ROLLOVERS AGAIN ? Yes: 10 in 1 month!. Here they are: 21/Oct LTI Graded Mitsubishi 4WD DC-PU 26/Oct FAC Graded Toyota Hilux 4WD DC-PU 30/Oct LTI/Ptd Blacktop Toyota Prado 4WD 9/Nov LTI Blacktop Mitsubishi 4WD DC-PU 16/Nov LTI Graded Toyota Hilux 4WD DC-PU

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  1. ROLLOVERS AGAIN ? Yes: 10 in 1 month!

  2. Here they are: • 21/Oct LTI Graded Mitsubishi 4WD DC-PU • 26/Oct FAC Graded Toyota Hilux 4WD DC-PU • 30/Oct LTI/Ptd Blacktop Toyota Prado 4WD • 9/Nov LTI Blacktop Mitsubishi 4WD DC-PU • 16/Nov LTI Graded Toyota Hilux 4WD DC-PU • 18/Nov FAC Blacktop Toyota Hilux 4WD DC-PU • 19/Nov FAC Graded Toyota Prado 4WD • 20/Nov Dead Blacktop Toyota Prado 4WD • 23/Nov No inj. Graded Isuzu 4WD DC-PU • 24/Nov FAC Graded Isuzu 4WD DC-PU DC-PU: Double Cab Pick-Up

  3. “Having fun” on graded road 21/Oct LTI Rollover !!

  4. 26/Oct FAC Straight graded road Yibal Rollover !! Veered to the left.Pulled hard to the right &rolled: classic S pattern.

  5. Straight blacktop Fahud-Nahada Veered off to the rightOvercorrected, rolled 4xClassic S patternNO rollover bar 30/Oct LTI perhaps a Permanent Total Disability ?? Rollover !!

  6. Veered off to the right.Pulled left but over-corrected & rolled 3x.Classic S pattern.9/Nov: LTI Straight Blacktop near Fahud: NIGHT Rollover !!

  7. Straight Graded road Bahja Rollover !! Classic S-pattern: veered to the right, pulled left (overcorrecting) and then pulled right again and rolled. 16/Nov LTI

  8. Straight Blacktop Nimr to Rima Rollover !! Not concentrating Trying to kill a fly! Overcorrecting: S pattern18/Nov FAC

  9. Burst right rear tire Car pulled leftLost control and rolled Straight graded road QA-Fahud Rollover !! 19/Nov FAC

  10. 20/Nov Fatality & LTI Blacktop road Fahud- Nizwa Rollover !! Car moved right at high speed. Driver over corrected and got into an S pattern:Rolled & Flipped.

  11. Driver tried to avoid some potholes in the poor road: pulled left then right. S-curve pattern! Straight graded road Thumrait-Marmul Rollover !! 23/Nov No Injury

  12. Junction Marmul-Thuleilat Driver pulled into junction at too high speed. Rolled off the road. Rollover !! 24/Nov No Injury

  13. Common features of these rollovers: • Speed (80 km/hr can be too fast !!) • All are 4 WD high Centre of Gravity cars • 8 on straight roads • 8 classic “S” curves: • driver loses concentration and veers slowly left or right • wrong steering reaction: pulls hard left/right • wrong braking reaction: brakes whilst steering • 4 on blacktop roads at high speed • 1 tyre blow-out, 1 junction/speed

  14. 4WD are great cars: • They are strong (we think) • They can go anywhere (almost) • You (almost) never get stuck • You sit high (good view) • They are powerful & feel good (macho?) • They are comfortable • They can carry a lot of load and people BUT…….

  15. But 4WD: • Have a very high CoG: this means that they are more sensitive to rollovers. • They do not brake that well: they are very heavy. • They do not steer and corner that well: they are heavy and high. • They give a false sense of security: driver feels invulnerable at any speed. • They are powerful and can go very fast: much too fast for their handling ability.

  16. Low CoG Rollovers & Centre of Gravity High CoG Would you drive these cars in the same manner when taking a corner or bend ??? Of course NOT !!!4WD High CoG car: adjust your driving & speed.

  17. When driving a 4WD: • Adjust your driving style. Combination of: • Speed • Steering: no sudden changes of direction • Braking: start braking earlier, keep more distance • Keep heavy loads as low as possible: NOT on the roof! High loads make the car more unstable. • Keep loads balanced to the centre/middle. • Passengers are also load: they change the stability of the car.

  18. The classic “S” curve rollover: Mistake 1: lost concentration car moves slowly to the right (or left) Mistake 2: pull hard left could roll here already Roll? Mistake 3: pull hard right Roll!! Mistake 4: braking & turning at the same time

  19. The classic “S” curve rollover: How to avoid it !!! Mistake: lost concentration car moves slowly to the right (or left) Good re-action: Roll-out into the desert. Do NOT pull your steering wheel. Hold it tight and straight with 2 hands. Brake slowly to full STOP. Do NOT panic.

  20. How to protect yourself against rollover? • Use a 2-WD instead of a 4-WD if possible. • If you drive a 4-WD: adjust your driving. • Never make violent adjustments in your steering & your braking, you must avoid an uncontrolled skid. • Make sure a 4-WD has a roll-bar !!!!! • Wear your seat belts !!!!! Your BELT can Save your LIFE