Trailer for Helicopter

[0017]Referring to FIGS. 1 through 3, a trailer includes a chassis 1, two lifters 2, two drivers 3, two locks 4 and a connector 5. The chassis 1 includes a frame 11, boards 12, two groups of wheels 13, two pairs of tracks 15 and two racks 14. The frame 11 includes two beams. Each group of wheels 13 and a related pair of tracks 15 are attached to a related one of the beams. Each pair of tracks 15 includes a front track 15 and a rear track 15. Each rack 14 is attached to a related one of the beams, next to a related rear track 15.

[0018]Each lifter 2 includes a rear lifting unit 21, a front lifting unit 22, two rods 2, a pusher 24 and a front contact element 25 and a rear contact element 25. The rear lifting unit 21 includes two primary links 211 and 212 and an auxiliary 213. The primary link 212 includes an end pivotally but not movably connected to a related one of the beams and another end pivotally connected to a first end of the primary link 211. A second end of the primary link 211