- Specifications (A.21)
- Operators
- See also
{{Unreferenced|date=December 2009}}| name=Aero A.21 | image= | caption= }}{{Infobox Aircraft Type | type=Night trainer aircraft | manufacturer=Aero Vodochody | designer= | first flight= | introduced= | retired= | status= | primary user=Czech Air Force | more users= | produced= | number built= | unit cost= | variants with their own articles=
}} |
The Aero A.21 was a biplane military trainer aircraft developed in Czechoslovakia from the Aero A.11 reconnaissance-bomber. The aircraft was developed specifically as a night-trainer, to teach Czech Air Force pilots instrument flying techniques. Specifications (A.21){{Aircraft specs
|ref=
|prime units?=met
|genhide=
|crew=2
|length m=8.2
|length ft=
|length in=
|length note=
|span m=12.8
|span ft=
|span in=
|span note=
|height m=3.1
|height ft=
|height in=
|height note=
|wing area sqm=36.5
|wing area sqft=
|wing area note=
|aspect ratio=
|airfoil=
|empty weight kg=1080
|empty weight lb=
|empty weight note=
|gross weight kg=1328
|gross weight lb=
|gross weight note=
|max takeoff weight kg=
|max takeoff weight lb=
|max takeoff weight note=
|fuel capacity=
|more general=
|eng1 number=1
|eng1 name=Breitfeld & Danek Perun I
|eng1 type=6-cyl. water-cooled in-line piston engine
|eng1 kw=
|eng1 hp=180
|eng1 shp=
|eng1 kn=
|eng1 lbf=
|eng1 note=
|power original=
|thrust original=
|eng1 kn-ab=
|eng1 lbf-ab=
|prop blade number=
|prop name=
|prop dia m=
|prop dia ft=
|prop dia in=
|prop dia note=
|perfhide=
|max speed kmh=170
|max speed mph=
|max speed kts=
|max speed note=
|max speed mach=
|cruise speed kmh=
|cruise speed mph=
|cruise speed kts=
|cruise speed note=
|stall speed kmh=
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|stall speed kts=
|stall speed note=
|range km=
|range miles=
|range nmi=
|range note=
|combat range km=
|combat range miles=
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|combat range note=
|ferry range km=
|ferry range miles=
|ferry range nmi=
|ferry range note=
|endurance=
|ceiling m=6500
|ceiling ft=
|ceiling note=
|g limits=
|roll rate=
|climb rate ms=2.35
|climb rate ftmin=
|climb rate note=
|time to altitude=
|lift to drag=
|wing loading kg/m2=36
|wing loading lb/sqft=
|wing loading note=
|fuel consumption kg/km=
|fuel consumption lb/mi=
|power/mass=0.100 kW/kg (0.06 hp/lb)
|more performance=
}}
OperatorsSee also{{commons category|Aero Vodochody aircraft}}{{Aircontent
|related=- Aero A.11
- Aero A.12
- Aero A.22
- Aero A.25
- Aero A.29
|lists=- List of military trainer aircraft
}}{{Aero Vodochody aircraft}} 4 : Aero Vodochody aircraft|Biplanes|Single-engined tractor aircraft|Czechoslovakian military trainer aircraft 1920–1929 |