Engineering:New Standard D-25

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Short description: American airplane
New Standard D-25
New Standard D-25 (N9119).jpg
Role Joy-rider, Barnstormer, Crop-Sprayer, Mail Carrier
National origin USA
Manufacturer New Standard Aircraft Company
Designer Charles Healy Day
First flight 1929
Number built 45
Developed from Gates-Day GD-24

The New Standard D-25 was a 5-seat agricultural and joy-riding aircraft produced in the US from 1928.

Construction

The D-25 was constructed primarily from Duralumin and wood. Duralumin stringers were used for the fuselage, with duralumin sheets riveted onto them. Unlike the fuselage, the wings were mostly of wood, with a main spar made of spruce, basswood for the stringers, and plywood for reinforcement, along with fabric coverings for the wing area and control surfaces. The D series was quite distinctive in having sesquiplane wings with the upper wing, of much bigger span and chord, supported on tall cabane and interplane struts.

Operational use

Seating for four passengers was provided in the open front cockpit, described as "chummy", with the pilot in the single seat open rear cockpit. Variations in seating arrangement reflected the role of the different variants. The rugged structure gave the New Standard Ds a long-life, leading to the respectable number that survived the abuse of joy-riding, mail carrying and crop dusting for many years.

Two D-25As that had been confiscated from smugglers were acquired by the US Coast Guard in 1935, designated NT-2.[1]

Variants

1929 New Standard D-25 of Waldo Wright's Flying Service at Fantasy of Flight
New Standard D-25A at the Air Zoo
  • Gates-Day GD-24 - precursor to New Standard D series 3 built.
  • New Standard D-24 - production version of GD-24 4 built + 2 converted from GD-24.
  • New Standard D-25 - 5-seat "joy-rider"
    • New Standard D-25A - 225 hp Wright J-6
    • New Standard D-25B - 300 hp Wright J-6 crop-duster produced by White Aircraft Co. 1940
    • New Standard D-25C - alternative designation of D-29S
    • New Standard D-25X - modified D-25 construction number 203.
    • New Standard NT-2 - 2 x D-25 impounded from whiskey smugglers, donated to US Coast Guard.
  • New Standard D-26 - 3-seat business/executive transport.
    • New Standard D-26A & D-26B - D-26 with 225 hp Wright J-6.
  • New Standard D-27 - single seat mail/cargo carrier
    • New Standard D-27A - D-27 with night flying equipment
  • New Standard D-28 - floatplane conversion of D-26
  • New Standard D-30 - floatplane modified D-25
  • New Standard D-25 - New production of modified D-25As

Operators

 United States
  • Alaskan Airways (D-25)[2]
  • Clifford Ball Inc. (D-27)[3]
  • Goodfolk & O'Tymes Biplane Rides (D-25)[4]
  • Cole Palen's Old Rhinebeck Aerodrome (2 D-25s, N176H active,[5] N19157 undergoing restoration[6]
  • United States Coast Guard

Specifications (D-25)

Data from Rhinebeck's Joyrider[7]

General characteristics

  • Crew: 1
  • Capacity: 4
  • Length: 26 ft 6 in (8.08 m)
  • Wingspan: 45 ft 0 in (13.72 m)
  • Height: 10 ft 2 in (3.10 m)
  • Wing area: 350 sq ft (32.5 m2)
  • Empty weight: 2,010 lb (914 kg)
  • Gross weight: 3,400 lb (1,550 kg)
  • Powerplant: 1 × Wright J-5 , 220 hp (160 kW)

Performance

  • Maximum speed: 110 mph (176 km/h, 96 kn)
  • Cruise speed: 95 mph (153 km/h, 83 kn)
  • Range: 480 mi (773 km, 420 nmi) [8]
  • Service ceiling: 20,000 ft (6,100 m)
  • Rate of climb: 1,000 ft/min (5.1 m/s)

See also

Aircraft of comparable role, configuration and era

References

Notes
  1. ↑ Swanborough and Bowers 1976, p.456.
  2. ↑ "Waldo Wright's Newsletter Fourth Quarter 2007, Volume 2, Number 4, Robert G. Lock: Early Aviators Part 3 - Where did the airplanes go after the barnstorming?". http://www.waldowrights.com/docs/newsletter/WWFSv2i4.pdf. Retrieved 17 June 2018. 
  3. ↑ "Clifford Ball (Airlines), New Standard D-27, NC9122 (c/n 114)". http://www.edcoatescollection.com/ac3/Airline/Clifford%20Ball%20New%20Standard%20D-27.html. Retrieved 17 June 2018. 
  4. ↑ "Home". http://www.gobiplanerides.com/. Retrieved 17 June 2018. 
  5. ↑ "New Standard D-25". Rhinebeck Aerodrome Museum. February 24, 2021. https://oldrhinebeck.org/new-standard-d-25-2/. 
  6. ↑ "New Standard D-25". Rhinebeck Aerodrome Museum. February 24, 2021. https://oldrhinebeck.org/new-standard-d-25/. 
  7. ↑ Levy Aeroplane Monthly August 1989, p. 489.
  8. ↑ Cruise radius
Bibliography
  • Juptner, Joseph P. (1964). U.S. Civil Aircraft Vol.2. Los Angeles: Aero Publishers. p. 25 to 32. 
  • Levy, Howard (August 1989). "Rhinebeck's Joyrider". Aeroplane Monthly 17 (8): 486–489. 
  • Swanborough, Gordon; Peter M. Bowers (1976). United States Navy Aircraft since 1911 (Second ed.). London: Putnam. ISBN 0-370-10054-9. 

External links



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