The Howard Aircraft Corporation DGA-15 was a single engine civil aircraft adapted by the US military for use in support roles during World War II, such as light transports and navigation trainers. As a Navy light transport it was designated GH-1 and by the Army Air Corps UC-70 Nightingale. As a navigation trainer the Navy designated it NH-1.
Mister Mulligan was notable for winning in 1935 both the Bendix and the Thompson Trophies, the only aircraft in history to win both. These races were really promotional demonstrations for the airplane, as well as a good way to raise cash for Howard's business. These successes did indeed bring the DGA series much attention, and in its various permutations, differentiated mainly by different powerplants, the DGAs-8, 9, 11 and 15 emerged as coveted aircraft, owned by corporations, wealthy individuals, and movie stars, such as Wallace Beery, who was himself a pilot. (In the movie, Bugsy, Warren Beatty playing the title role is flown from Los Angeles to Las Vegas in a red Howard DGA-15.)
In an era when airlines were flying DC-3s, the Howards at 160 to 170mph could match their speed and range. The rear seat exceeded airline leg room with limousine-like capaciousness. And with its high wing loading, the Howards rode through most turbulence with airline-like solidity.
With America's entry into World War II, most of the civilian Howards were commandeered by the military. The Army used them as officer transports and as ambulance planes, with the designation UC-70. The Navy, in particular, much liked the plane and contracted Howard Aircraft Corporation to build hundreds of the DGA-15s to its own specifications. They were used variously as an officer's utility transport (GH-1, GH-3), aerial ambulance (GH-2), and for instrument training (NH-1). A second factory was opened at Dupage County airport, west of Chicago, and about 550 DGA's were eventually completed. The Howard was and is an excellent instrument platform, very stable and solid, especially compared to modern light aircraft.
The DGA-15P is a handsome aircraft, directly descended from the four-place DGA-11 which was probably the ultimate of the series. It was widened to a five place (two in front, three in the back), it's a little beefier, and not as lithe of line. It is probably also a few knots slower than the -11 with which it shares the same powerplant.
Also introduced in the latter part of this period, and driven by the same Pratt & Whitney engine, was the radically advanced Spartan Executive. The Spartan was an all metal, low wing monoplane with retractable gear, good for at least 200MPH. Conceptually, this aircraft was a major leap beyond the others, which were of conventional metal tube and fabric construction. The Howard, is however distinguished by a lovely, elliptical tipped wood wing which is extremely strong. And, in fact the red line (never exceed speed) of the rugged Howard is 270mph. Far higher than that of almost all modern single reciprocating engined aircraft currently flying.
In more recent years, the Howards have joined places with the Staggerwing (they are honorary members of the Staggerwing Club of Tullahoma, TN) and now are usually seen as they should be in decent to magnificently restored condition. However, they still provide great utility. Superb traveling airplanes with much better visibility, headroom, and shoulder room than the Staggerwing, they have very long "legs" with a fuel capacity of 151 gallons in three belly mounted tanks. This gives endurance of more than 7 hours, for a range at normal cruise (130kts/150mph) of over 1,000 statute miles.
Fuel management of the Howard is also less complex than for the Staggerwing which requires careful juggling. The Howard features a simple tank selector mounted under the instrument panel. It lets the pilot simply choose front, center, or rear tank, and that’s all there is to it.
With modern avionics, the Howard surpasses in many respects any contemporary light aircraft for its combination of room, comfort, speed, range, carrying capacity, and certainly panache. The Pratt & Whitney, a supercharged engine, gives excellent performance from high altitude strips, and lets the Howard fly comfortably and confidently at mid-altitudes, above most normally-aspirated aircraft and below turbine-driven planes.
There is nothing to compare to the pleasure of flying behind a radial engine, turning at lower RPMs than a horizontal-opposed engine; it feels smoother and generates a comfortable low, reassuring rumble for less pilot fatigue, while propelling the Howard through the sky in a most stately fashion. Its arrival never goes unnoticed, even at the most jaded exec jet terminals or International airports. And, with the stability previously noted, it is a pleasure to fly the Howard on instruments, particularly on approach, day or night.
Almost 100 of the Howard variants are still flying, mostly DGA-15s. A very few of the DGA-11s also still fly, including one out of Santa Paula, CA, which is probably the world headquarters of Howards with at least five flying out of that field.