Nicknamed the "Yellow Peril" thanks to its somewhat
tricky ground handling characteristics, the Stearman is one of the most easily recognized
aircraft. Its simple construction, rugged dependability and nimble handling made the
Stearman much loved by those who flew and trained on it. The Stearman Kaydet, as it was
officially named, was the only American aircraft used during World War II that was
completely standardized for both Army and Navy use as the PT 13D (Army) and
N2S-4 (Navy).
Sold by the thousands after World War II, the Stearman has had a long and full career as a
trainer, crop duster and air show performer. The name "Stearman" is so widely
known that it has become the generic name for almost all currently flown biplanes. It is
truly a "classic."
The famed Stearman Model 75 has its roots in the earlier Model 70, which was
chosen in 1934 as the U.S. Navy's primary trainer. At a time when biplanes were becoming a
thing of the past, the Model 70 offered the fledgling pilot a steady and sturdy steed.
Designed and built in only 60 days, the prototype Model 70 could withstand load factors
much higher than were expected to occur in normal flight training. The U.S. Army and Navy
tested the prototype in 1934. At the conclusion of these tests, the Navy ordered the
aircraft while the Army decided to wait for the introduction of the improved Model 75
appearing in 1936. Over the next decade, the Army received nearly 8,500 Stearmans in five
different variants. The difference among these versions were the engines fitted; Kaydets
were fitted with Lycoming (PT 13), Continental (PT 17) or Jacobs (PT 18) radial engines.
The U.S. Navy took delivery of their first Stearman (called the NS-1 ) in 1934. Powered
with the obsolete but readily available Wright R-790-8 engine, the NS-1 proved its worth
as a primary trainer. The Navy purchased several thousand of an improved model, the N2S.
The N2S was built in five sub variants, each variant
being equipped with a different model engine. Additionally, the Canadian armed forces took
delivery of 300 PT 27s, a winterized version of the PT 17.
A later, more powerful version of the Stearman, the Model 76, was purchased by
Argentina, Brazil and the Philippines. The Model 76 featured wing mounted .30 caliber
machine guns, a bomb rack between the landing struts and a single machine gun for the rear
cockpit. These aircraft were used as light attack or reconnaissance aircraft. After World
War II, many Stearmans were fitted with Pratt & Whitney 450 h.p. engines and utilized
as crop dusters. These more powerful Stearmans are also commonly used for wing-walking or
aerobatic routines at air shows.
The Cavanaugh Flight Museum's N2S-4 was assembled in 1985 from original Stearman
components. The aircraft is painted in an authentic U.S. Navy paint scheme.
SPECIFICATION AND PRODUCTION INFORMATION
ENGINE:
Continental W-670 220 h.p.
WING
SPAN:
32 feet, 2 inches
LENGTH:
24 feet,10 inches
HEIGHT:
9 feet, 2 inches
MAX. TAKEOFF WEIGHT: 2,700 pounds
CREW:
2
MANUFACTURED
BY: Boeing
Aviation
TOTAL STEARMANS BUILT: 10,346
TOTAL IN EXISTENCE TODAY: 2,136
FIRST N254 STEARMAN BUILT: 1933
MUSEUM'S N254 STEARMAN BUILT: June 1985
MAXIMUM
SPEED:
104 mph
RANGE:
260 miles
SERVICE
CEILING:
14,000 feet