De Havilland DH 4 1919 to 1929

in history •  7 years ago 

De HAVILAND DH 4

Official A7929

Design:
Geoffery De Havilland

Company:
De Havilland

Wing Span:
42 ft 5 in

Wing Area:
440 sq ft

Length:
30 ft 8 in

Height:
10 ft 5 in

Ceiling:
16,000 ft

Speed: at 3,000 ft
119 MPH

Range:
550 Miles

Crew:
Pilot
Student / Passenger

Role:
Advanced Trainer

Qty Manufactured:
UK 1,300
USA 5,000

First Flight:
Aug 1916

Armament:
Nil in NZ

Years Served:
1919 to 1929

Qty Served:
2

Tail No’s:
A7893 A7929

ENGINE


image source

Type:
Rolls Royce Eagle
12 cylinder, 60^ vee, in line, liquid cooled

Bore:
4.5 in 115 mm

Stroke:
6.5 in 165 mm

Volume:
1,239 cu in 20.32 L

Compression Ratio:
5.22 : 1

Max RPM:
1,800 RPM

T/O Power:
360 hp

Length:
72.6 in 1.844mm

Height:
46.4 in 1.178 mm

Width:
42.6 in 1.082mm

Weight:
900 lb 408 kg

Power to Weight Ratio:
0.40 hp/lb 0.66 KW/Kg

A7893

Arrived on SS Matatua
To Lyttleton as an Imperial Gift Aircraft 8 Aug 1919
Taken to Sockburn for storage and assembly Nov 1919
First A/C to fly over Mt Cook –
Pilots Captains Wilkes and Isett 8 Sep 1920
Used for Annual refresher course for NZPAF pilots from 1924
Broken up And burnt at Wigram 1930

A7929

Arrived on SS Matatua
To Lyttleton as an Imperial Gift Aircraft 8 Aug 1919
Taken to Sockburn for storage and assembly Nov 1919
Code letter J
Used for Annual refresher course for NZPAF pilots from 1924
Broken up And burnt at Wigram 1930

Set Dominion Altitude Record 21,000 ft 27 Nov 1919

with thanks to son-of-satire for the banner

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