This is my 2-stage Boosted Bertha video w an E12 to E12-8 enigines that went to 2,631 feet per FS Mini altimeter! This is from LDRS39a on the Bonneville Slat Flats 7/29/2021. Barely found the sustainer!
Yes, they were E engines! Yes, I need to work on my handwriting!
Yes, they were E engines! Yes, I need to work on my handwriting!