Supriya Ghosh (Editor)

Pitcairn Mailwing

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Top speed
  
206 km/h

Length
  
6.9 m

Engine type
  
Radial engine

Designer
  
Agnew E. Larsen

Wingspan
  
10 m

Unit cost
  
8,000–12,500 USD

Manufacturer
  
Pitcairn Aircraft Company

Pitcairn Mailwing Pitcairn Mailwing PA 6

Pitcairn mailwing landing 7 1 2015


The Pitcairn Mailwing family was a series of mail carrier and sport aircraft produced in the U.S. from 1927 to 1931.

Contents

Pitcairn Mailwing FilePitcairn Mailwingjpg Wikipedia

Pitcairn mailwing taxi 7 1 2015


Design and development

Pitcairn Mailwing The Pitcairn Mailwing Article amp Plans August 1968 American Aircraft

The Pitcairn Mailwings were developed by Pitcairn to carry air mail for the U.S. Postal Service. Of simple and robust construction, they also had relatively benign flying characteristics.

Pitcairn Mailwing httpsairandspacesiedusitesdefaultfilesima

They were constructed using chrome-moly steel tube and square-section spruce spars with spruce and plywood built-up ribs. The fuselage was faired using wooden formers and covered with fabric. The tail sections were built up from steel tube and fabric-covered. The Pitcairn Mailwing had a ground-adjustable fin and in-flight adjustable tailplane, features not often seen in other aircraft.

Pitcairn Mailwing Pitcairn PA5 Mailwing singleseat biplane mailplane

The undercarriage was of outrigger type with Oleo-Spring shock absorbers and disc brakes on the mainwheels. All models looked very similar; changes were minor, with several fuselage extensions being the most obvious.

Pitcairn Mailwing Pitcairn PA6 Mailwing singleseat biplane mailplane

The mail was carried in a fireproof metal-lined compartment forward of the pilot's cockpit. The Mailwings were flown extensively by the U.S. Air Mail service from 1927 until the end of dedicated Air-Mail routes.

Pitcairn also built the same aircraft in sport versions for private use. These aircraft had the mail compartment removed, and a side-by-side two-seat cockpit was fitted.

Variants

  • PA-5 - original production version of 1927 with Wright J-5-9 engine; ATC 18 (32 built)
  • PA-5 Mailwing - mail carrier version
  • PA-5 Sport Mailwing - sport version with seats for two passengers
  • PA-6 - 1928 production version with Wright J-5-9 engine; ATC 2-22 (early), 92 (late) (53 built)
  • PA-6 Super Mailwing - mail carrier version
  • PA-6B Super Mailwing - (1 converted from PA-6)
  • PA-6 Sport Mailwing - sport version with seats for two passengers
  • PA-7 - 1929 production version with Wright J-6 engine; ATC 196
  • PA-7A Sport Mailwing
  • PA-7M Super Mailwing - mail carrier version (12 built)
  • PA-7S Super Sport Mailwing (15 built)
  • PA-8 - 1930 production version with Wright J-6 engine; ATC 364
  • PA-8M Super Mailwing - mail carrier version (6 built)
  • Operators

     United States
  • U.S. Postal Service
  • Howard Hughes owned a PA-5 with a chrome plated engine.
  • Felix du Pont owned a PA-5 with gold plated rocker covers.
  • Specifications (PA-5 Mailwing)

    General characteristics

  • Crew: 1
  • Capacity: payload of 500 lb (230 kg)
  • Length: 21 ft 10½ in (6.9 m)
  • Wingspan: 33 ft 0 in (10.06 m)
  • Height: 9 ft 0 in (2.74 m)
  • Wing area: 252 ft2 (23.41 m2)
  • Powerplant: 1 × Wright J-5-9, 220 hp (164.05 kW)
  • Performance

  • Maximum speed: 131 mph (210 km/h)
  • Cruise speed: 112 mph (179 km/h)
  • Stall speed: 45 mph (72 km/h)
  • Service ceiling: 18,000 ft (5,486 m)
  • Rate of climb: 1,100 ft/min (5.6 m/s)
  • References

    Pitcairn Mailwing Wikipedia


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