TRNS News Release
Department of Interior: Aviation Manufacturing Directorate announces that Skoda Siam, Avia Aircraft and Walter Motors have concluded a joint venture agreement with El Conquistador Aviation Engines to open a small aircraft engine manufacturing facility in Bangkok Thailand.
The arrangement calls for the licensed manufacture of the following WALTER and AVIA engine series for locally designed aircraft
http://www.luftfahrtmuseum.com/htmi/itf/wmars.htm
Walter MARS
El Konk Model 500AC14R(D)
Power rating : 671 hp 500 kWatt
No of cylinders : 14 14
Weight : 352.80 lbs 160.00 kg
Engine capacity : 1404.104 in^3 21.900 ltr
_______________________________________________
Walter Merkur
El Konk Model 625AC9R
Specifications
General characteristics
* Type: Nine-cylinder single-row supercharged air-cooled radial engine
* Bore: 5.75 in (146 mm)
* Stroke: 6.5 in (165 mm)
* Displacement: 1,519 in³ (24.9 L)
* Diameter: 51.46 in (1,307 mm)
* Dry weight: 996 lb (452 kg)
Components
* Valvetrain: Four pushrod-actuated valves per cylinder — 2 intake and 2 sodium-filled exhaust
* Supercharger: Single-speed centrifugal type supercharger
* Fuel system: Direct fuel injection with automatic mixture control
* Fuel type: 87 octane rating gasoline
* Cooling system: Air-cooled
* Reduction gear: Farman epicyclic gearing, 0.572:1 (Mercury VIII) or 0.5:1 (Mercury IX)
* Ignition system: Rotax with automatic spark advance
Performance
* Power output:
o 740 hp (550 kW) at 2,650 rpm for takeoff
o 840 hp (625 kW) at 2,750 rpm at 14,000 ft (4,270 m)
* Specific power: 0.47 hp/in³ (21.57 kW/l)
* Compression ratio: 6.5:1
* Specific fuel consumption: 0.52 lb/(hp•h) (319 g/(kW•h))
* Oil consumption: 0.28 oz/(hp•h) (11 g/(kW•h))
* Power-to-weight ratio: 0.74 hp/lb (1.2 kW/kg)
______________________________________________
Walter Pegasus VIII
El Konk Model 700AC9R
General characteristics
* Type: Nine-cylinder single-row supercharged air-cooled radial engine
* Bore: 5.75 in (146 mm)
* Stroke: 7.5 in (190.5 mm)
* Displacement: 1,752.8 in³ (28.72 L)
* Length: 54.72 in (1,390 mm)
* Diameter: 55.31 in (1,405 mm)
* Dry weight: 1,111 lb (504 kg)
Components
* Valvetrain: Four pushrod-actuated valves per cylinder — two intake and two sodium-filled exhaust
* Supercharger: Two-speed centrifugal type supercharger
* Fuel system: direct fuel injection
* Fuel type: 87 octane rating gasoline
* Oil system: Dry sump with one combination pressure/scavenge pump
* Cooling system: Air-cooled
* Reduction gear: Farman epicyclic gearing, 0.5:1
* Propeller: four-blade with variable pitch
Performance
* Power output:
o 950 hp (710 kW) at 2,475 rpm for takeoff
o 1005 hp (750 kW) at 2,600 rpm at 3,000 ft (915 m), first supercharger gear
o 875 hp (655 kW) at 2,600 rpm at 15,500 ft (4,730 m), second supercharger gear
* Specific power: 0.56 hp/in³ (25.64 kW/l)
* Compression ratio: 6.4:1
* Specific fuel consumption: 0.52 lb/(hp•h) (319 g/(kW•h))
* Oil consumption: 0.28 oz/(hp•h) (11 g/(kW•h))
* Power-to-weight ratio: 0.89 hp/lb (1.46 kW/kg)
______________________________________________
Walter Super Castor III
El Konk Model 800AC14R
General characteristics
* Type: Fourteen-cylinder double-row supercharged air-cooled radial engine
* Bore: 155.5 mm (6.12 in)
* Stroke: 162 mm (6.38 in)
* Displacement: 35.5 ltr (2,166 in³)
* Length: 1,411 mm (55.55 in)
* Diameter: 1,380 mm (54.33 in)
* Dry weight: 550 kg (1215 lb)
Components
* Valvetrain: Two overhead valves per cylinder
* Supercharger: Single-speed centrifugal type supercharger
* Fuel system: Bosch fuel injector
* Fuel type: 87 octane rating gasoline
* Cooling system: Air-cooled
* Reduction gear: Farman epicyclic gearing, 1.61:1
Performance
* Power output:
o 800 kW (1100 hp) for takeoff
o 970 kW (1300 hp) at 2,290 rpm at 2,900 m (9,515 ft)
* Specific power: 29.26 kW/l (0.66 hp/in³)
* Compression ratio: 6.5:1
* Specific fuel consumption: 322 g/(kW•h) (0.53 lb/(hp•h))
* Oil consumption: 8-11 g/(kW•h) (0.21-0.28 oz/(hp•h))
* Power-to-weight ratio: 1.45 kW/kg (0.89 hp/lb)
______________________________________________
Walter "Argus"
El Konk Model 450LC12V
Output power: 605 HP (450 kW)
RPM: 3300 min-1
Fuel Consumption: 200 g/HP-hour (270 g/kW-hr)
Displacement: 12 ltr
Bore: 105 mm
Stroke: 115 mm
Weight: 375 kg
Width: 770 mm
_______________________________________________
Avia B-135
El Konk Model 635 LC12V
General characteristics
* Type: Twelve-cylinder supercharged liquid-cooled 60° V12 engine
* Bore: 150 mm (5.91 in)
* Stroke: 170 mm (6.69 in)
* Displacement: 36 l (2,197 in³)
* Length: 1,722 mm (67.8 in)
* Width: 764 mm (30.08 in)
* Height: 935 mm (36.81 in)
* Dry weight: 465 kg (1,025 lb)
Components
* Valvetrain: One intake and one sodium-filled exhaust valve per cylinder actuated via a single overhead camshaft per bank.
* Supercharger: Gear-driven single-speed centrifugal type supercharger, 10.0:1 gear ratio
* Fuel system: metered direct fuel injection
* Fuel type: 85 octane rating gasoline
* Cooling system: Liquid-cooled
* Reduction gear: Spur, 2:3
Performance
* Power output:
o 615 kW (825 hp) at 2,400 rpm for takeoff
o 635 kW (850 hp) at 2,400 rpm at 4,000 m (13,100 ft)
* Specific power: 17.08 kW/l (0.38 hp/in³)
* Compression ratio: 5.8:1
* Specific fuel consumption: 328 g/(kW•h) (0.54 lb/(hp•h))
* Oil consumption: 11 g/(kW•h) (0.28 oz/(hp•h))
* Power-to-weight ratio: 1.35 kW/kg (0.85 hp/lb)
______________________________________________
Under joint development:
Avia B-138
El Konk Model 1000LC12X
General characteristics
* Type: 12-cylinder supercharged liquid-cooled X piston engine
* Bore: 150 mm (5.9 in)
* Stroke: 170 mm (6.7 in)
* Displacement: 36 L (2,197 in³)
* Dry weight: 690 kg (1,520 lb)
Components
* Valvetrain: Two intake and two sodium-cooled exhaust valves per cylinder actuated by dual overhead camshafts
* Supercharger: Gear-driven single-stage single-speed centrifugal type supercharger
* Fuel type variable metered direct fuel injection.
* Fuel type: 87-octane rating gasoline
* Cooling system: Liquid-cooled
Performance
* Power output:
o 970 kW (1,300 hp) at 2,650 rpm for takeoff
o 1,120 kW (1,500 hp) at 2,700 rpm at 6,400 m (21,000 ft)
* Specific power: 31.1 kW/L (0.68 hp/in³)
* Compression ratio: 6.75:1
* Specific fuel consumption: 0.29 kg/(kW·h) (0.48 lb/(hp·h)) at cruise
* Power-to-weight ratio: 1.62 kW/kg (0.99 hp/lb)
To be uodated