Abstract: A low cost cotton harvester (10) utilizing a tractor chassis (12) operated in the reverse direction includes a row unit is located forwardly of the drive wheels (20), and a single operator station (36) is situated above the drive wheels (20). A basket (60) is mounted above the engine (22) and the steerable wheels (18). The transmission (26) on the chassis (12) includes a mechanical front wheel drive (MFWD) output (30) located between the drive wheels (20) and the steerable rear wheels (18) which is connected to the row unit drive (50) to synchronize row unit drive speed with tractor drive wheel speed. The harvester fan (62) is connected to the existing power take off (PTO) shaft (32) on the tractor chassis (12) for operation independently of the row unit drive (50). Drop wheel axle structure (90) for the wheels may be used to provide crop clearance and to facilitate use of the chassis as a sprayer when the row unit (46) is removed.

Abstract: A composite material including a first carbon foam structure including a network of pores and a second carbon foam structure including a network of pores. An intermediate bonding structure is disposed at least in part between the first and second carbon foam structures.