![spacex - What are the differences between a standard Merlin engine and the Merlin Vacuum engine? - Space Exploration Stack Exchange spacex - What are the differences between a standard Merlin engine and the Merlin Vacuum engine? - Space Exploration Stack Exchange](https://i.stack.imgur.com/0A9SH.jpg)
spacex - What are the differences between a standard Merlin engine and the Merlin Vacuum engine? - Space Exploration Stack Exchange
![Despite Merlin Engine Testing Anomaly SpaceX Forges Ahead With Ambitious Year End Launch Schedule Commencing Nov. 15 - Universe Today Despite Merlin Engine Testing Anomaly SpaceX Forges Ahead With Ambitious Year End Launch Schedule Commencing Nov. 15 - Universe Today](https://www.universetoday.com/wp-content/uploads/2017/11/548683_10152345118630131_1206932732_n.jpg)
Despite Merlin Engine Testing Anomaly SpaceX Forges Ahead With Ambitious Year End Launch Schedule Commencing Nov. 15 - Universe Today
![Everyday Astronaut on Twitter: "Just finished this little animation showing the expansion ratios of @SpaceX's Merlin 1D engines. Crazy how much bigger the vacuum nozzle is compared to the sea level nozzle! Everyday Astronaut on Twitter: "Just finished this little animation showing the expansion ratios of @SpaceX's Merlin 1D engines. Crazy how much bigger the vacuum nozzle is compared to the sea level nozzle!](https://pbs.twimg.com/ext_tw_video_thumb/1174457544359759872/pu/img/yw4YUPr0oeCMWrmA.jpg:large)