Power is used to make the aircraft climb. Elevators control pitch. Ailerons control roll. My basic flight instructor sarcastically said "...elevators are used to induce a stall, whether intentional or not".
In other words, if you want the aircraft to climb, increase power. If you want the aircraft to descend, reduce power.
Written by the publisher on the cover flap of the book, "Overnight, as he navigated by the stars through storms across the featureless ocean..." is probably not accurate, as Charles Lindbergh did not carry a sextant. As a solo pilot and flying under cloud he wouldn't have been able a star shot on the trans-Atlantic flight. Regardless, Lindbergh was not proficient in celestial navigation. One year after the historical flight, he got lost flying from Havana to Florida, after which, in May 1928, Navy Lieutenant Commander Philip V.H. Weems took Charles Lindbergh on a series of flights to teach him a new way to navigate.
Read more at
http://www.airspacemag.com/history-o...zIi0o1oAaZq.99