@Turbo Lover:
"with other words; instead the last 0.3 of the texture is not shown, the first 0.3 of the texture is not shown."
It's quite obvious as texture coordinates are starting at top-left position. So to get the bottom part of the texture you need to set head V mapping to 0.3 and foot V Mapping to 1.
"When i use -0.7 the mapping is correct, but the texture is flipped."
Same answer as above but you can anyway use this setting and un-flip texture after using the mapping quick edit button present in the Parts windows (behind part texture preview).