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Boeing-Stearman Kaydet

United States (1941)
Picture of Boeing-Stearman Kaydet Biplane Trainer / Aerobatic Aircraft
Picture of Boeing-Stearman Kaydet Biplane Trainer / Aerobatic Aircraft Picture of Boeing-Stearman Kaydet Biplane Trainer / Aerobatic Aircraft
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The Boeing-Stearman Kaydet trainer is now a much-loved collectors item for private aircraft owners.


Detailing the development and operational history of the Boeing-Stearman Kaydet Biplane Trainer / Aerobatic Aircraft.  Entry last updated on 6/7/2018. Authored by Staff Writer. Content ©www.MilitaryFactory.com

When The Boeing Company acquired the Stearman company in 1939, it also acquired the design and production rights to the promising Model 75 series, which itself was flown as the "X-70" as early as 1933. The two-seat biplane would evolved into a series of trainers under the PT-13, PT-15, PT-18 and PT-27 designations and serve through World War 2 and beyond, ultimately becoming a prize aircraft for any aviation aficionado.

The "Kaydet" was initially received by the United States Navy in the form of the Model 73 production series and designated as the NS-1 produced in no fewer than 61 delivered examples. The Model 75 was derived from this production model which was then accepted by the United States Army as the PT-13. These versions were fitted with a Lycoming R-680 engine of 215 horsepower output. 2,141 PT-13 examples were produced and this in five subvariants (PT-13 followed by A, B, C, and D models). Further development led to increasingly improved versions of the base Model 75 that featured a host of powerplant and instrument changes. Kaydets were now being produced on orders numbering thousands and included a slew of USN and US Army variants differing mainly in engine types installed.

Introduction of the Continental-brand R-670-5 series of engines led to a new designation as the PT-17 of which 3,519 were produced (across A- and B-model variants). Later models produced with a Jacobs R-755 powerplant were further designated as PT-18's and these numbered 150 units. The Boeing-Stearman design was also sold to Canada under Lend-Lease during World War 2 as the PT-27 (with enclosed cockpit) and numbered 300 examples delivered.

Total production of Model 75 was approximately 9,800 units.

The Canadian Lend-Lease Model 75s were called "Kaydet" and the name stuck over time, still being used today to identify the line. Kaydets managed to see considerable use after the war as well in the aerial acrobat role and crop dusting. Operators spanned the globe from Argentina and Bolivia to the Philippines and Venezuela (see operators listing below for complete global reach).

Taiwan (Republic of China) was another wartime Lend-Lease partner and recipient of the Kaydet.


Picture of the Boeing-Stearman Kaydet Biplane Trainer / Aerobatic Aircraft
Picture of the Boeing-Stearman Kaydet Biplane Trainer / Aerobatic Aircraft



Any available statistics for the Boeing-Stearman Kaydet Biplane Trainer / Aerobatic Aircraft are showcased in the areas immediately below. Categories include basic specifications covering country-of-origin, operational status, manufacture(s) and total quantitative production. Other qualities showcased are related to structural values (namely dimensions), installed power and standard day performance figures, installed or proposed armament and mission equipment (if any), global users (from A-to-Z) and series model variants (if any).




General Assessment (BETA)
Firepower  
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Performance  
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Survivability  
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Versatility  
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Impact  
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Rating: 44 (of 100)
The rating is an internal assessment derived from forty factors pertaining to this entry.
Relative Maximum Speed Rating
Hi: 150mph
Lo: 75mph
    This entry's maximum listed speed (124mph).

    Graph average of 112.5 miles-per-hour.
City-to-City Ranges
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  NYC
Graph showcases the Boeing-Stearman PT-17A Kaydet's operational range (on internal fuel) when compared to distances between major cities.
Aviation Era
Pie graph section
Pie graph section
Pie graph section
Pie graph section
Pie graph section
Useful in showcasing the era cross-over of particular aircraft/aerospace designs.
Unit Production Comparison
Comm. Market HI*: 44,000 units
Military Market HI**: 36,183 units
9800
9800


  * Commercial Market High belongs to Cessna 172.

  ** Military Market High belongs to Ilyushin Il-2.


Altitude Visualization
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National Flag Graphic
Origin: United States
Year: 1941
Type: Biplane Trainer / Aerobatic Aircraft
Manufacturer(s): Boeing-Stearman - USA
Production: 9,800
Status: Retired, Out-of-Service
Global Operators:
Argentina; Bolivia; Brazil; Canada; China; Colombia; Cuba; Dominican Republic; Greece; Guatemala; Honduras; Iran; Israel; Mexico; Philippines; United States; Venezuela
Historical Commitments / Honors:

Military lapel ribbon for Operation Allied Force
Military lapel ribbon for the Arab-Israeli War
Military lapel ribbon for the Battle of Britain
Military lapel ribbon for the Battle of Midway
Military lapel ribbon for the Berlin Airlift
Military lapel ribbon for the Chaco War
Military lapel ribbon for the Cold War
Military lapel ribbon for the Cuban Missile Crisis
Military lapel ribbon for the Falklands War
Military lapel ribbon for the French-Indochina War
Military lapel ribbon for the Golden Age of Flight
Military lapel ribbon for the 1991 Gulf War
Military lapel ribbon for the Indo-Pak Wars
Military lapel ribbon for the Iran-Iraq War
Military lapel ribbon for the Korean War
Military lapel ribbon for the 1982 Lebanon War
Military lapel ribbon for the Malayan Emergency
Military lapel ribbon for the attack on Pearl Harbor
Military lapel ribbon for the Six Day War
Military lapel ribbon for the Soviet-Afghan War
Military lapel ribbon for the Spanish Civil War
Military lapel ribbon for the Suez Crisis
Military lapel ribbon for the Vietnam War
Military lapel ribbon for Warsaw Pact of the Cold War-era
Military lapel ribbon for the WASP (WW2)
Military lapel ribbon for the World War 1
Military lapel ribbon for the World War 2
Military lapel ribbon for the Yom Kippur
* Ribbons not necessarily indicative of actual historical campaign ribbons. Ribbons are clickable to their respective campaigns/operations.
Measurements and Weights icon
Structural - Crew, Dimensions, and Weights:
Unless otherwise noted the presented statistics below pertain to the Boeing-Stearman PT-17A Kaydet model. Common measurements, and their respective conversions, are shown when possible.

Operational
CREW


Personnel
1 or 2


Dimension
LENGTH


Feet
25.03 ft


Meters
7.63 m


Dimension
WIDTH


Feet
32.15 ft


Meters
9.8 m


Dimension
HEIGHT


Feet
9.15 ft


Meters
2.79 m


Weight
EMPTY


Pounds
1,936 lb


Kilograms
878 kg


Weight
LOADED


Pounds
2,716 lb


Kilograms
1,232 kg

Engine icon
Installed Power - Standard Day Performance:
1 x Continental R-670-5 Seven-cylinder radial developing 220 horsepower.

Performance
SPEED


Miles-per-Hour
124 mph


Kilometers-per-Hour
199 kph


Knots
107 kts


Performance
RANGE


Miles
505 mi


Kilometers
812 km


Nautical Miles
438 nm


Performance
CEILING


Feet
11,204 ft


Meters
3,415 m


Miles
2.12 mi

Armament - Hardpoints (0):

None.
Variants: Series Model Variants
• X-70 - Original Stearman Prototype Model
• Model 75 - Stearman Developed X-70; Became Boeing product through acquisition of the Stearman company.
• NS-1 - US Navy Designation of the Model 73 production models; 61 examples delivered.
• PT-13 - US Army Model Designation fitted with Lycoming R-680-5 radial 215hp piston engine; 26 examples delivered.
• PT-13A - Further development of the PT-13; fitted with R-680-7 engine of 220hp; 92 examples produced.
• PT-13B - Fitted with R-680-11 powerplant; 255 examples delivered.
• PT-13C - Night Flying Conversion Models; 6 examples produced in this fashion.
• PT-13D - "Common" US Army and Navy Production Model.
• PT-17 - Fitted with Continental R-670-5 radial; 3,510 produced.
• PT-17A - "Blind Flying" Variant with specialized instrumentation; 18 such produced.
• PT-17B - "Pest Control" Variant for crop dusting; 3 such produced.
• N2S - US Navy Model Designation based on the Model 75.
• N2S-1 - USN Model; fitted with R-670-14 engine; 250 models produced.
• N2S-2 - USN Model; fitted with R-680-8 engine; 125 produced.
• N2S-3 - USN Model; fitted with R-670-4 engine; 1,875 produced.
• N2S-4 - USN Model; fitted with R-670-5 engine; 1,051 produced.
• N2S-5 - USN Model; fitted with R-680-17 engine; 1,450 examples produced.
• PT-18 - Variants fitted with Jacob R-755-7 radial powerplant.
• PT-18A - "Blind Flying" PT-18 Model Variant
• PT-27 - Canadian Export Model; 300 examples delivered; named "Kaydet" in Canada which today translates as the series name as a whole; Enclosed cockpit.