SAI KZ II

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The SAI KZ II was a sport aircraft built in Denmark in 1937, produced in three major versions before and after the Second World War. In its original form, designated the "Kupé" (Danish: "Coupé") it was a low-wing cantilever monoplane of conventional design with fixed tailwheel undercarriage and two seats side-by-side under an enclosed canopy. the fuselage structure was of steel tube, skinned in plywood and fabric, and the wings were wooden with plywood covering and could be folded back along the fuselage for transport and storage.

This was followed by the aerobatic KZ II Sport with a revised fuselage design, placing the two seats in separate open cockpits in tandem, and a dedicated military trainer version along the same lines, the KZ II "Træner" ("Trainer"). This latter type was first produced in 1946, as a step towards rebuilding Denmark's air force after the war. They remained in service until 1955, when nine examples were sold into private hands.

In 2008, an example of each variant (including the sole extant KZ II Sport) is preserved in the Danmarks Flymuseum.

Variants

* KZ II Kupé - original version with enclosed canopy, side-by-side seating and de Havilland Gipsy Minor or Cirrus Minor engine (14 built)
* KZ II Sport - aerobatic version with tandem seating in open cockpits and Hirth HM 504 engine (16 built)
* KZ II Træner - military trainer version similar to KZ II Sport with de Havilland Gipsy Major engine (15 built)

Operators

* Denmark
** Danish Navy - ordered 4 × KZ II Sport, but these were confiscated by Germany before delivery
** Danish Air Force - 15 × KZ II Træner operated between 1946 and 1955

pecifications (KZ III Træner)

aerospecs
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crew=Two, pilot and instructor
capacity=
length m=
length ft=
length in=
span m=10.20
span ft=33
span in=6
swept m=
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width m=
width ft=
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height m=
height ft=
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wing area sqm=15.0
wing area sqft=161
swept area sqm=
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volume m3=
volume ft3=
aspect ratio=
wing profile=
empty weight kg=550
empty weight lb=1,210
gross weight kg=850
gross weight lb=1,870
lift kg=
lift lb=

eng1 number=1
eng1 type=de Havilland Gipsy Major
eng1 kw= 108
eng1 hp= 145
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max speed kmh=220
max speed mph=140
max speed mach=
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range km=650
range miles=410
endurance h=
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ceiling m=5,000
ceiling ft=16,400
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References

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* [http://flymuseum.dk/html/flytekst/kz2_k.php Danmarks Flymuseum page on the KZ II Kupé (in Danish)]
* [http://flymuseum.dk/html/flytekst/kz2_s.php Danmarks Flymuseum page on the KZ II Sport (in Danish)]
* [http://flymuseum.dk/html/flytekst/kz2_t1.php Danmarks Flymuseum page on the KZ II Træner (in Danish)]
* [http://www.airwar.ru/enc/law1/kz2.html Уголок неба]