MIL-S-62101 Semitrailers, Lowbed: Tilt Deck, 15 To 30 Ton, 4 Wheel, Modified CommercialThis specification covers lowbed, tilt deck, four-wheel semitrailers having rated payloads of 15 to 30 tons. Vehicles procured under this specification are commercial items which are warranted by the manufacturer as specified in procurement documents.

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Characteristic

Sizes 15,

20 and 22

Sizes 25

and 30

Overall length, feet (maximum)

36

38

Overall width, inches (maximum)

96

96

Platform height, from the ground to top

surface of tilting platform, inches (maximum)

40

45

Tilting platform width, inches, plus or minus 1 inch

95

95

Platform tilted angle, degrees, without beavertail

(see 3.5.1), (maximum)

15

15

Platform tilted angle, degrees, with beavertail

(see 3.5.1), (maximum)

9

9

Beavertail tilted angle, degrees (see 3.5.2) (maximum)

18

18

Length from rear of gooseneck to centerline of rear bogie, feet (minimum)

11

11

Length of level platform from back of gooseneck

to end of platform, exclusive of beavertail, feet (minimum)

19

21

Upper fifth wheel height, from the ground to the underside of the upper fifth wheel plate, inches,

plus or minus 1 inch

48

53

Distance from vertical centerline of kingpin to

front of semitrailer, inches, plus 2 minus 0 inches

18

18

Landing wheel clearance, radius from vertical centerline of kingpin to any point 6 inches

or more below upper fifth wheel plate inches (minimum)

82

82

Forward swing radius, from vertical centerline

of kingpin to most distant point on semitrailer nose, inches (maximum)

60

60