I commend to Pynchonites The Style of Connectedness: Gravity's Rainbow and Thomas Pynchon, by Thomas Moore. Moore observes that the V-2 fits both the 19th- (fuel burning) and 20th-Century (informational) senses for an automaton.
Moore, The Style of Connectedness, p173
The Style of Connectedness: Gravity's Rainbow and Thomas Pynchon
Thomas Moore
University of Missouri (May 1, 1987)
ISBN-13: 978-0826206251
Link to Google Books