Pitcairn PA-2 Sesquiwing

Model of a 1926 PA-2 on display at the EAA Airventure Museum
Role  | Biplane
National origin | United States of America
Manufacturer  | Pitcairn Aircraft Company
Designer  | Agnew E. Larson
First flight  | 1926
Introduction  | 1926

The Pitcairn PA-2 Sesquiwing "Arrow" is an early biplane designed for air racing and commercial airmail service.[1]

## Contents

* 1 Design
* 2 Operational history
* 3 Specifications (Pitcairn PA-2 Sesquiwing - C-6 engine)
* 4 References
* 4.1 Notes
* 4.2 Bibliography

## Design

The Sesquiwing featured a quick change motor mount to accommodate a Curtiss C-6 or Curtiss OX-5 engine, and wheel fairings for speed.[2]

## Operational history

A specially built PA-2 was flown by Jim Ray in the 1926 Ford National Reliability Air Tour. It placed second in a race for engines under 800 cubic inches displacement, then it had its engine swapped to an OX-5 for a race the next day, and again back to a Curtiss C-6 engine the next day to win the Detroit race.[3]

## Specifications (Pitcairn PA-2 Sesquiwing - C-6 engine)

Pitcairn PA-2 Sesquiwing with OX-5 motor. 3-view drawing from Le Document aéronautique February,1927

Data from The Pitcairn Sesqui-Wing[4]

General characteristics

* Crew: 1
* Capacity: 2 passengers
* Length: 22 ft 6 in (6.86 m)
* Upper wingspan: 32 ft 0 in (9.75 m)
* Lower wingspan: 24 ft 8 1⁄2 in (7.531 m)
* Height: 8 ft 4 in (2.54 m)
* Wing area: 219.8 sq ft (20.42 m2)
* Empty weight: 1,492 lb (677 kg)
* Gross weight: 2,246 lb (1,019 kg)
* Powerplant: 1 × Curtiss C-6 , 160 hp (120 kW)

Performance

* Maximum speed: 145 mph (233 km/h, 126 kn)
* Cruise speed: 120 mph (190 km/h, 100 kn)
* Stall speed: 60 mph (97 km/h, 52 kn)
* Range: 360 mi (580 km, 310 nmi)
* Endurance: 3 hr
* Service ceiling: 20,000 ft (6,100 m)

## References

### Notes

1. ↑ Frank Kingston Smith. Legacy of wings: the story of Harold F. Pitcairn.
2. ↑ Frank Kingston Smith. Legacy of wings: the story of Harold F. Pitcairn.
3. ↑ William F. Trimble (1982). High frontier: a history of aeronautics in Pennsylvania. ISBN 9780822953401. https://archive.org/details/highfrontierhist00trim.
4. ↑ Aviation November 8, 1926, pp. 802–804.

### Bibliography

* "The Pitcairn Sesqui-Wing". Aviation XXI (19): 802–805. November 8, 1926. http://archive.aviationweek.com/issue/19261108/#!&pid=802.

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