Viper N7242C is a Viper Mark II spacefighter which was apparently the favored craft of William "Husker" Adama during much of his service in the Cylon War. It was found "rusting out in a salvage yard on Sagittaron" by Galen Tyrol, who restores it to operational condition and presents it as a token of thanks to his retiring commanding officer.
The fighter is flown by Adama's son, Lee "Apollo" Adama, in a flyby performance during Galactica's decomissioning. The younger Adama is assigned escort duty for Colonial Heavy 798 back to Caprica. When the Cylon Attack begins without warning, the fighter's comparably antiquated systems proved impervious to Cylon infiltration attempts. Adama successfully protects Colonial Heavy 798 and its passenger, Laura Roslin, long enough for them to gather a sizeable refugee fleet of other stranded civilian ships and rendezvous with Galactica at Ragnar Anchorage.
At the subsequent battle to escape a Cylon blockade, Apollo, now the battlestar's CAG, commands Galactica's defensive squadrons of Vipers from the same fighter. The ship is heavily damaged, loosing a wing and power after taking a severe hit, but returns to Galactica due to the timely intervention and unconventional flying of Kara "Starbuck" Thrace.
The damage to Viper 7242 is repaired amidst the constant Cylon attacks during the first week after the Fleet's escape from Ragnar (33).
After the Fleet's arrival at the second Earth, Admiral William Adama ceremonially piloted 7242 off of Galactica as the last Viper and last crewman to depart the ship. For the occasion, the fighter was restored once again to its wartime appearance with a tail number of N7242C and the pilot's nameplate reading "Lt William 'Husker' Adama" (Daybreak, Part II).
- During the presentation scene, the serial number for this Viper is N7242C. However, during the crash landing, it is 7242NC. In "33", it is back to N7242C and in "Pegasus" it is once more changed to 7242NC. These series of "changes" are best explained as the re-use of CGI models for the special effects.