Kansas Cosmosphere Site Index
Atlas Vernier Start Tank Gallery


The sign accompanying the Atlas vernier start tank. It reads

Atlas Vernier Engine Start Tank

In addition to its large booster and sustainer engines, each Mercury-Atlas rocket had a pair of Rocketdyne YLR101-NA-13 vernier rockets for roll control. Igniting these small engines required a pair of start tanks like the one displayed here. Before launch, one tank held RP-1 fuel and the other liquid oxygen. The tanks held only enough propellants to fire the verniers for a few seconds. After the sustainer engine came up to speed, however, its turbopump took over the job of supplying propellant to the verniers.

Time picture taken Mon Jul 28 18:22:00 2008
Location picture taken Early Spaceflight Gallery
Kansas Cosmosphere
Hutchinson, KS
Prev Atlas Vernier Start Tank Gallery Next