Categories Fleet Otto Aviation Celera 500L Post author By Red Aircraft Post date September 6, 2022 The simple quote from the OTTO AVIATION Homepage:BUILT.FLOWN.PROVEN.We really appreciated the smooth and highly professional integration of our engine into this breathtaking new aircraft design. A good part of the SAF compliance and evaluation was done in this project.CELERA 500L _2021 from Otto Aviation on Vimeo. Tags A03, Celera500L, ottoaviation ← YAK-18T → HAL Airlander