Pander D

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Pander D
Pander D Paris.png
Pander D at the Paris Aero Show 1924
RoleSingle seat sport monoplane
National origin Netherlands
ManufacturerNederlandse Fabriek van Vliegtuigen H. Pander & Zonen
DesignerTheo Slot
First flight16 November 1924 [1]
Primary users Netherlands Naval Aviation Service
Royal Netherlands East Indies Army
Number built10 [1]
Developed from Holland H.2

The Pander D was a small Dutch single-seat sport monoplane, an evolution of the Carley C.12 of 1923. Ten were built.

Contents

Design and development

Pander D at Croydon Pander D.png
Pander D at Croydon

When Vliegtuig Industrie Holland (VIH) (English: Aircraft Industry Holland) became insolvent in 1924, Its core staff and property were bought by H. Pander who set up Nederlandse Fabriek van Vliegtuigen H. Pander & Zonen (English:Dutch Aircraft Factory H. Pander & Sons) to produce aircraft. Their first design was a modified Holland H.2, an aircraft which VIH had derived from the Carley C.12. All were small, single-seat, shoulder wing monoplanes powered by a single three-cylinder Anzani producing about 22 kW (30 hp). The Pander D had the much more streamlined, rounded fuselage, quadrant shaped fin and faired headrest that VIH had used with the H.2; compared with the C.12, the Pander's wings were more tapered, had rounded tips and lacked the large cutouts in the trailing edge roots. The trailing edges of the elevators were unswept, not forward swept as on the C.12. [1] [2]

The Pander D had a single piece, two spar wing which was attached to the upper fuselage longerons with pairs of yoked U-bolts. The spars were of the box type with spruce flanges and plywood webs, the front one forming a narrow chord D-box with ply covering around the wing leading edge. Aft of the front spar, the wing and ailerons, the latter mounted on false spars, were fabric covered. Similar methods were used in the tail structure. [2]

The fuselage was a monocoque structure of longerons and hoops, covered in three-ply. The fuselage was flat sided but deep and carefully made upper and lower fairings produced its overall rounded look. [2] The high quality and lightness of the woodworking was remarked upon; [2] Pandar had built his reputation and fortune in the furniture trade. [1] As on the earlier versions of the Carley C.12 the cockpit was between the wing spars, faired by a coaming with a circular cutout. The fixed, conventional undercarriage was also similar to that of the C.12, with steel V-form struts hinged on the upper longerons supporting, via rubber shock absorbers, the landing wheels and outer ends of split axles, hinged to the central fuselage underside. The inverted Y-Anzani had a smooth, rounded cowling through which much of its cylinders protruded. It drove a two-bladed propeller. [2]

The Pandar D flew for the first time on 16 November 1924, with J. van Opstal at the controls. [1]

Operational history

The Pander D appeared in public for the first time at the Paris Aero Show, where it was exhibited both on the Pander stand [3] and in the air. [2] It was offered for sale at £450. [3] The second prototype visited Croydon, UK for several days at the end of April 1925, giving demonstrations and being flown by many pilots. [4] In August, one was in the UK again, racing at Lympne. [5]

In all ten Pander Ds were built, six as civilians and four military. Two examples were lost on test or delivery flights but two more civilians were sold in France and Spain, another was used for a time by a flying instructor in the Netherlands and a sixth went to the Dutch East Indies. Two Pander Ds were sold to the Netherlands Naval Aviation Service, though mostly used for pleasure flights, and two to the Royal Netherlands East Indies Army who used them for stunt flying at airshows. [1]

Specifications

Pander D 3-view.png

Data from Flight 25 February 1925 [2]

General characteristics

Performance

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References

  1. 1 2 3 4 5 6 Wesselink, Theo; Postma, Thijs (1982). De Nederlandse vliegtuigen. Haarlem: Romem. pp. 35, 38–41, 57. ISBN   90 228 3792 0.
  2. 1 2 3 4 5 6 7 "The Pander Light Monoplane". Flight . Vol. XVII, no. 8. 19 February 1925. pp. 93–5.
  3. 1 2 "The Paris Aero Show - Pander Light Monoplane". Flight . Vol. XVI, no. 52. 25 December 1924. pp. 800–1.
  4. "The Pander Light Monoplane Visits Croydon". Flight . Vol. XVII, no. 18. 30 April 1925. pp. 254–6.
  5. "Air Racing at Lympne". Flight . Vol. XVII, no. 32. 6 August 1925. pp. 499, 505.