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Pogo oscillation is a self-excited vibration in liquid-propellant rocket engines caused by combustion instability. The unstable combustion results in variations...

Press. Archived from the original on 2013-12-02. Oscillations of a Pogo stick, Wolfram Demonstrations Project. pogostickusa.com, History of Pogo Sticks...

Look up pogo in Wiktionary, the free dictionary. Pogo, PoGo or POGO may refer to: Pogo stick, a toy used for jumping up and down with the aid of a spring...

techniques. The crew encountered some problems during the flight: pogo oscillations during the launch phase and a brief, uncontrolled tumble of the LM...

behaved normally. Then, as the Saturn V's S-IC first stage burned, pogo oscillations shook the vehicle. The thrust variations caused the Saturn V to experience...

stage cutoff, the center engine shut down to reduce longitudinal pogo oscillations. At around this time, the LOX flow rate decreased, changing the mix...

engine shut down about two minutes early. This was caused by severe pogo oscillations. Starting with Apollo 10, the vehicle's guidance system was designed...

70% of test launches. On one occasion, an A-4 rocket suffering from pogo oscillations during ascent veered 90 degrees off course then spiralled back down...

seconds after launch when the rocket broke up from longitudinal ("pogo") oscillations, causing the strap-ons to separate from the vehicle, which then crashed...

could be made ready by December 1; and von Braun was confident the pogo oscillation problems that had afflicted Apollo 6 had been fixed. Almost every senior...

launch vehicle for Apollo 13. A number of changes were made to avoid pogo oscillations, that had caused an early shutdown of the center J-2 engine on Apollo...

from pogo oscillation (the nickname NASA engineers invented for the Titan's vibration problem since it was thought to resemble the action of a pogo stick)...

would also burn longer. Changes were also made to the S-II to dampen pogo oscillations. Once all major systems were installed in the Saturn V, it was moved...

smoothly into the engines. This phenomenon is known as "pogo oscillations" or "pogo", named after the pogo stick.: 258  In the worst case, this may result in...

Saturn V flight, pogo oscillations were observed in the rocket's liquid oxygen tanks; von Pragenau led a tiger team to solve the oscillations before the launch...

Volkswagen Beetle) The launch went perfectly except for a few seconds of pogo oscillation (axial vibration of the rocket). This was measured at +0.38 g (3.7 m/s2)...

is finally launched atop the modified Saturn VN, but suffers from pogo oscillations in the S-IC first stage. This damages the NERVA upper stage, which...

uncrewed Saturn V flight test. J-2 restart failed due to damage from pogo oscillation of previous stages. Some mission milestones accomplished using additional...

separation, similar to Apollo 4. Two engines failed during ascent due to pogo oscillation and incorrect engine control wiring. S-II-3 Apollo 8 December 21, 1968...

engine to achieve another high-speed reentry. The Saturn V experienced pogo oscillation, a problem caused by non-steady engine combustion, which damaged fuel...