The angle of inclination of the principal axis was found to have probable error of plus or minus 0.17 degrees both from analysis of the error of inertia measurement of the full-scale airplane and from tests with a model having a simple configuration. Analysis showed the probable error of the inertia measurements for the test airplane to be plus or minus1.00, plus or minus 0.49, and plus or minus 0.35 percent of the true moment of inertia about the X, Y, and Z body reference axes, respectively.

Osprey's examination of the B-26 Marauder Units' participation in World War II (1939-1945). The revolutionary design of the B-26 and its associated flight characteristics initially gained it a reputation as a 'widow maker' receiving nicknames such as 'The Baltimore Whore' and 'The Flying Prostitute' - both a reference to its short wingspan, i.e. no visible means of support! Gradual improvements to the design and the development of effective combat tactics enabled these units to make the B-26 a very effective and safe combat aircraft; it went on to play a major role in the defeat of Axis forces in North Africa, Italy, France and Germany. The bombing accuracy of the B-26s was unrivalled and they were therefore selected to bomb targets such as the Florentine rail network. Lt General Eaker MAAF CO said. 'When we teach the B-17s to bomb like the B-26s we will have accomplished our job'. Hastily trained on an airplane with a bad reputation and rushed into combat in North Africa, the MTO B-26 groups went on to gain an enviable reputation for bombing accuracy and low combat loss rate. Performing the dangerous close support and interdiction roles, the units played a major role in the defeat of Axis forces in North Africa, Italy and Germany. They proved the B-26 to be a highly reliable, effective medium bomber - indeed, an MTO-based B-26 was the first ever USAAF bomber to reach the 100-mission mark. It was the three MTO Bombardment Groups that established the Marauder as one of the USAAF's truly great aircraft of World War II.