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Aero A.11


Day and Night Reconnaissance / Multi-purpose Aircraft


Czechoslovakia | 1925



"The Aero A.11 was a multirole biplane airframe that saw several major variants produced for its time in the air."



Authored By: Staff Writer | Last Edited: 06/21/2018 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
The Aero A.11 was a successful multirole performer for the Czech Army Air Force during the interwar years separating the two World Wars. Equally respected for its adaptability and capability, the A.11 was designed from the outset as a multi-purpose airframe to replace the aging series of aircraft still in service at the time. In the end, the Aero A.11 would see no fewer than 20 different variant types, owing much to the inherently adaptable design envisioned when the aircraft first flew in 1925.

The A.11 was of traditional biplane arrangement featuring an over and under primary wing element. It maintained World War 1-era fighter traits such as open-air cockpits and fixed undercarriage. The crew numbered two with the pilot and his observer / gunner seated in tandem within the slab-sided fuselage. The upper wing element was fitted just ahead and around the pilot with the single liquid-cooled engine mounted forward of this (driving a two-bladed propeller unit).

A single 7.7mm Vickers Machine Gun in a fixed, forward-firing mounting was fitted for attack and managed by the pilot. The rear gunner had access to a 2 x 7.7mm Lewis Machine Gun pairing atop a flexible mounting. A modest bomb load of 441lb could also be carried for attack sorties.

The engine of choice became the Walter W IV series engine of 240 horsepower. Performance included a maximum speed of 150 miles per hour, a service ceiling of 25,000 feet and a range out to 470 miles. Rate-of-climb was 751 feet -per-minute.

The Aero A.11 was seen in its typical twin-seat reconnaissance platform but was equally adept in the role of day (as the Ab.11) or night (as the A.11N) bombing. Another notable variant was the A.11HS, an export version shipped off to Finland - the only other operator of the series. Eight were used by the Finns up until World War 2 in 1939. By the 1940s the line had all but been discarded.

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Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the Aero A.11 Day and Night Reconnaissance / Multi-purpose Aircraft.
1 x Walter W.IV 8-cylinder liquid-cooled engine developing 240 horsepower and driving a two-bladed propeller at the nose.
Propulsion
149 mph
240 kph | 130 kts
Max Speed
24,934 ft
7,600 m | 5 miles
Service Ceiling
466 miles
750 km | 405 nm
Operational Range
751 ft/min
229 m/min
Rate-of-Climb
City-to-City Ranges
Operational range when compared to distances between major cities (in KM).
NYC
 
  LON
LON
 
  PAR
PAR
 
  BER
BER
 
  MOS
MOS
 
  TOK
TOK
 
  SYD
SYD
 
  LAX
LAX
 
  NYC
Structure
The nose-to-tail, wingtip-to-wingtip physical qualities of the Aero A.11 Day and Night Reconnaissance / Multi-purpose Aircraft.
2
(MANNED)
Crew
26.9 ft
8.20 m
O/A Length
42.0 ft
(12.80 m)
O/A Width
10.2 ft
(3.10 m)
O/A Height
2,381 lb
(1,080 kg)
Empty Weight
3,395 lb
(1,540 kg)
MTOW
Design Balance
The three qualities reflected below are altitude, speed, and range. The more full the box, the more balanced the design.
RANGE
ALT
SPEED
Armament
Available supported armament and special-mission equipment featured in the design of the Aero A.11 Day and Night Reconnaissance / Multi-purpose Aircraft .
STANDARD:
1 x 7.7mm Vickers machine gun in fixed, forward-firing mounting.
2 x 7.7mm Lewis machine guns on trainable mounting in rear cockpit.

OPTIONAL:
Up tp 441lb of conventional drop stores.
Variants
Notable series variants as part of the Aero A.11 family line.
A.11 - Base Designation
Ab.11 - Day Light Bomber
A.11HS - Finnish Export Model Designation
A.11N - Night Bomber
Operators
Global customers who have evaluated and/or operated the Aero A.11. Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 250 Units

Contractor(s): Aero Vodochody - Czechoslovakia
National flag of Czechia National flag of Finland

[ Czechoslovakia; Finland ]
Relative Max Speed
Hi: 150mph
Lo: 75mph
Aircraft Max Listed Speed (149mph).

Graph Average of 113 MPH.
Era Crossover
Pie graph section
Pie graph section
Showcasing Aircraft Era Crossover (if any)
Max Alt Visualization
Small airplane graphic
Production Comparison
250
36183
44000
Entry compared against Ilyushin IL-2 (military) and Cessna 172 (civilian) total production.
MACH Regime (Sonic)
Sub
Trans
Super
Hyper
HiHyper
ReEntry
RANGES (MPH) Subsonic: <614mph | Transonic: 614-921 | Supersonic: 921-3836 | Hypersonic: 3836-7673 | Hi-Hypersonic: 7673-19180 | Reentry: >19030
Aviation Timeline
EarlyYrs
WWI
Interwar
WWII
ColdWar
Postwar
Modern
Future
1 / 1
Image of the Aero A.11
Side profile view illustration of an Aero A.11; color

Mission Roles
Some designs are single-minded in their approach while others offer a more versatile solution to airborne requirements.
RECONNAISSANCE
Recognition
Some designs stand the test of time while others are doomed to never advance beyond the drawing board; let history be their judge.
Going Further...
The Aero A.11 Day and Night Reconnaissance / Multi-purpose Aircraft appears in the following collections:
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