| Span over all | 41′7½″ |
| Length over all | 29′1¼″ |
| Total, full load (fighter) | 4,023 lbs. |
| Weight, light (bomber) | 2,675.5 lbs. |
| Total, full load (bomber) | 4,879.5 lbs. |
The Glenn L. Martin Company
The Martin Bomber
The Martin Twin-Engine Bomber has a speed of 118.5 M.P.H., made on the first trial with full bombing load. The climbing time with full bombing load was 10,000 feet in 15 minutes, and a service ceiling of 16,500 feet was attained. As a military machine the Martin Twin is built to fill requirements of a night-bomber, day-bomber, long-distance photographer, or a gun-machine. As a night-bomber it is equipped with 3 Lewis guns, 1,500 pounds of bombs, and 1,000 rounds of ammunition. A radiotelephone set is carried on all four types. Fuel capacity sufficient for six hours. Full power at 1,500 feet.
As a day-bomber two additional guns are carried, and the bomb capacity cut to 1,000 pounds. The Martin Twin is easily adaptable to commercial uses which are now practical: they are mail and express carrying, transportation of passengers, and aerial map and survey work. As an example of its capacity, twelve passengers or a load of merchandise weighing a ton may be carried.
General dimensions are as follows:
| Span, both planes | 71′5″ |
| Over-all length | 46′0″ |
With a ton of useful load, speed of 100 to 150 M. P. H. is made. Two 400 horse-power Liberty engines are used.
Packard Motor Car Company
The Packard two-place tractor was designed around, and made a complete unit with, the Model 1-A-744 Packard Aviation Engine. This machine will make about 100 M.P.H. with full load, on account of its light weight and clean-cut design, and yet its landing speed is as low as the average training aeroplane.