The LFOs and KLFs of Eureka Seven are for the most part the fighting " Aircraft " LFOs are the most humanoid of the type, While KLFs are more Equipment like, Both can Mechamorph into vehicles or the more recognizable " Wave Rider Mode " in which the Robot looking mechs ride on boards that look like surf boards, only Times larger.
here are some examples:
These above craft ride on waves of thought energy emenating and what premeates the air of Series " Eureka Seven " these " Trappar are seen as waves, like we are under an ocean of trappar, and these LFO's ride them on the Reflection Boards.
The above Mecha are but a few of the recolored and modified versions of the original LFOs in the series, here are some more below I made for a Fan Fiction author.
The above KLF is supposed to be the newer version of the KLF's seen in Eureka Seven series, (these were modified for a FanFic.)
Above is the an LFO I modified now to spec2 designs, (can change into a fighter plane)