[Data Sheet] DAR-10F "Bekas"

[NachtJagerX 10,074]

WIP

Model: DAR-10F "Bekas" (Snipe)

 

Technical Description: Single-engine, low-wing close air support monoplane

 

Short History: Further development of the DAR-10A, with a more powerful engine. The fuselage was elongated and the plane was made more aerodynamical. Many other changes were made, such as the addition of dive brakes. Due to the situation in Bulgaria, the development was protracted, and the prototype was ready for testing in March 1945. While displaying excellent characteristics, the plane was largely obsolete by the time it was ready for production. After several more test flights, it was grounded in the spring of 1945. The DAR-10F was to be displayed in the National Technical Institute's Aeronautics study, per request of constructor Tsvetan Lazarov. The plane was scrapped in the 1950s.
 

Configuration: close air support/ground attack

 

Production Status

First flight: 1945
Introduction year: N/A

Status: cancelled, due to being obsolete by 1945, and the availability of big amounts of IL-2s.

Number built: 1

 
Crew Data
Number of crew: 2
Roles of crew: pilot and gunner
 
Engine Data (Piston Aircraft)
Manufacturer: FIAT
Name: A.74 R.C.38S
Number of engines: 1
Number of cylinders: 14

Configuration: radial, two-row

Cooling: air-cooled
Supercharger / Turbo:
Fuel: 
Dry weight: 
Gear ratio: 0.655

Compression Ratio: 8.78:1

 

Fuel Data
Fuel tanks: 
Fuel consumption: 
 
Power Data
WEP: 960 HP, at 2520 RPM, 890 mm HG, 3000 m
Take Off Power: 870 HP, at 2520 RPM, 890 mm HG
Maximum Power: 840 HP, at 2520 RPM, 790 mm HG, 4300 m
Cruising Power: 

• economic: 550 HP, at 2400 RPM,  700 mm HG, 5000 m
• normal: 740 HP, at 2400 RPM, 700 mm HG, 5000 m

Propellor Data
Manufacturer: FIAT
Type: variable pitch
Number of blades: 3
Blade diameter: 3.5 m

Material: metal
 
Basic Geometric Data
Length: 9.83 m
Wing span: 12.65 m
Wing area: 22.90 m²
Height: 
Flap area: 
Elevator area:
Rudder area: 
Aileron area:
 
Weight Data
Empty weight: 2030 kg
Loaded weight: 3420 kg
 
General Performance Data
Maximum speed: 454 km/h

Minimum speed: 109 km/h

Landing speed: 
Cruising speed: 365 km/h
Service ceiling: 9000 m
Range: 1400 km

Flight endurance: 4 h

Take-off run: 390 m

Landing run: 395 m
 
Max Speed Chart

Rate of Climb

• average: 8.33 m/s

Armament

• 2x7.92 mm wing-mounted MG 17 machine guns, 1000 RPG
• 2x20 mm synchronized MG 151/20 cannons in the engine cowling
• 1x7.92 mm MG 81Z twin gunner machine gun
• 1x250 kg bomb under fuselage, 4x50 kg bombs on wing pylons

Ammunition:

Notes
 

29.01.2015: added schematics

 

Sources
 

1. Aircraft Manufacture in Bulgaria, Dimitar Nedialkov, 2009, p.100-108

2. "Въздушните на Негово Величество войски 1935-1945, част втора", I. Borislavov, R. Kirilov, 2001

3. Motore FIAT A 74 RC 38 S e derivati instruzioni per l'uso III edizione

 

Again, any help with translating more data from the engine manual would be welcome.

 

Additional pictures

 

 

Schematics

Edited February 10, 2015 by NachtJagerX

[Blackart 4,984]

It was inspired on PZL.43 if im not wrong.

 

Shouldn't it be in Bombers section?

Edited February 4, 2015 by Blackart

[NachtJagerX 10,074]

It was inspired on PZL.43 if im not wrong.

 

Shouldn't it be in Bombers section?

Well, at least according to my books it was never classified as a bomber.

[blockhaj 3,560]

It is better suited for attacker than bomber. The bombload suck, but the gunner and armament makes it a good tier 1 ore possibly low tier 2 attacker.