I DO NOT OWN THIS MODEL
Kerbal Space Program developed by Squad
(c) 2011-2018 Take-Two Interactive Software, Inc.
ORIGINAL MODEL FROM THE GAME
DESCRIPTION AND IMGAES ARE STILL WORK IN PROGRESS
The 909 model was initially received with some skepticism by spacecraft engineers, as it defied the long-standing convention that "More Power!" is always better. Despite this, the 909 series has found its place in the spacecraft construction world, being particularly useful as a final stage and landing engine.