Yeah, it's normal, and it usually ends up getting sucked backward, presumably due to the turbulent airflow in the space between the end of the vehicle and the e

Yeah, it's normal, and it usually ends up getting sucked backward, presumably due to the turbulent airflow in the space between the end of the vehicle and the engine nozzles: Echostar: https://youtu.be/zEfEBJfD_RE?t=18m23s https://youtu.be/zEfEBJfD_RE?t=18m23s JCSAT: https://youtu.be/QZTCEO0gvLo?t=17m38s https://youtu.be/QZTCEO0gvLo?t=17m38s CRS-9: https://youtu.be/ThIdCuSsJh8?t=17m45s https://youtu.be/ThIdCuSsJh8?t=17m45s