Tom Swift and His Flying Lab by Victor Appleton II
1954 for the first in the rebooted YA science series. The Tom Swift Jr. books are a spinoff from the earlier Tom Swift juvenile science based adventures. In the original Tom Swift books (first published in 1910), the young inventor was pushing the science of the day, with his motorcycle, airship, and airplane. So the science bar had to be raised in the mid 1950s. Tom Swift Jr., starts his adventures with an atomic powered VTOL aircraft that includes a full set of science labs, a kitchen for their cook, Texan "Chow" Winkler, and a smaller set of aircraft (jet and helicopter) in a hanger bay. Good fun, with a definite Cold War setting.