TABLE F-2 Trailer Base Device Information from Manufacturers

Item

Manufacturer

Qualified for SmartWay (Y/N)

Fuel Consumption Reduction (gal/mile) (%)

Evaluation Method

Weight to Equip 53-ft Trailer (lb)

Retail Price Equivalent for One Trailer (US$)

Estimated Annual Maintenance Cost (US%)

Other Useful Information

1

ATDynamics boat tail

Y

5.1

J1321, 62 mph

175

2,800

0

Folds flat in 6 sec; improves stability

2

AeroTrailerSysa inflatable tail

a

3

a

a

a

a

Automatically deploys

3

TransTexa boat tail

a

2.9

a

a

a

a

Reduces road spray

4

AirTab vortex generators

N

2-3

Truck test, 47 mph

1

220

0

Reduces road spray

aCommittee questionnaire not responded to.

SOURCE: Data from responses to committee questionnaire and from manufacturers’ websites.

TABLE F-3 Trailer Face Device Information from Manufacturers

Item

Manufacturer

Qualified for SmartWay (Y/N)

Fuel Consumption Reduction (gal/mile) (%)

Evaluation Method

Weight to Equip 53-ft Trailer (lb)

Retail Price Equivalent for One Trailer (US$)

Estimated Annual Maintenance Cost (USD)

Other Useful Information

1

Laydon Vortex Stabilizer

N

1

J1321

40

495

0

Better performance in yaw

2

Laydon Nose Fairing

Y

2

J1321

95

795

0

No tractor interference

3

FreightWing Gap Fairing

Y

2

J1321, 65 mph

75

849

$50

Better performance with low aerodynamic tractor

4

NoseCone Eyebrow

Y?

>3

J1321?

30

For high tractor roof fairing

5

NoseCone

Y?

>4

J1321?

75

1,264

$35

No yaw effect in J1321



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