PEGASUS ON WHEELS

Car Studio Pegas, building cars of the same name, founded in Yaroslavl in 2003 Vadim Shustrova. At that time he had just graduated from the Yaroslavl Polytechnic University. But behind him was the experience of close communication with the guys from the design Bureau MAMI and US. To create your it car inspired machine brand Pegaso, produced in small series in 1950 – 1960s in Spain. In addition, Vadim liked English sports cars, produced by technology kitcar.

 

Vadim Shustrov decided to build a lightweight and compact two-seater coupe using parts from the production cars. This approach has helped to make the original car from the maximum available units and units. In case of necessity it is possible to change the configuration and apply more sophisticated units and components. The basic donor for the future car was the car “Oka”.
 
Was previously drawn only a sketch of the car in profile, vaguely resembling the profile of Spanish cars, and made a rough mockup out of clay. An important part of the work was the production of planting layout of wood and metal, which allowed to determine the dimensions of the frame and layout of the entire vehicle. Planting layout on the bottom had the form of a “trough” formed by the high threshold and a bottom, in the center of the windshield and the top for display purposes, was used part of the roof from the “hunchback” ZAZ-965. Inside was placed the seat frames, which formed the arc of safety. Displacement sensors were found an optimal fit, the position of the steering wheel and pedals.
Front and rear suspension of the car was supposed to be used from the front suspension of the car “OKA” with some modifications. On the Seating layout had a special subframe, attachment points of the suspension, steering rack and the power unit. In addition, the serial “OKA” has a curb weight distribution on the axes close to the ideal 50/50. This moment affected the geometry of its suspension-there are no significant changes. Thus, to form the chassis of the car of the future, it was necessary to provide the frame attachment points of the standard subframes and use them as conductors for welding. On the layout by means of hangers mounted on stretchers, were found to base the future of the car. The wheel track has been widened up to 1290 mm, compared to 1210 mm from the donor.
 
 
 
The construction of the planting layout culminated in the establishment of the frame to the vehicle chassis, which consists of three basic parts: Central with integrated safety cage (undercarriage part), a front – subframe, front suspension and steering, rear – subframe, rear suspension and powertrain. Material for the frame was of rectangular tube, square and round cross sections of different sizes and steel sheet thickness of 1 mm for the formation of a high threshold, underbody and fire bulkhead between engine and cabin. The frame weight is 90 kg.
 
On the welded frame was pre-assembled chassis and installed on podmodelnuju plate, and began work on the creation of the exterior of the body. In fact, the shape of the roof and windshield, boundaries, doorways and the position of the wheels was found, had to build it all into an aesthetic body. For the formation of the wings were made of a special cone layouts, mounted on wheels, formed of plywood the shape of the radiator grille and number plate surrounds. Headlights from the car “Daewoo Matiz”, the rear lights – from the “VW new Beatle”. Optics were pinned to their seats and asked the shape of the body surfaces at the corners. Further lines were derived using plywood templates and sculptural clay. The location of the chassis podmogilny the plate was allowed to see the shape of the car, to appraise and adjust it as necessary. It was a classic layout work in 1:1 scale.
 
Coupe
 
Coupe Pegasus: General view and main geometrical dimensions
 
Frame vehicle
 
The frame of the car “Pegasus”
 
Computer chassis
 
A computer model of the chassis
 
Arrangement
 
The Layout Of The Pegasus:
 
1 – radiator; 2 – battery; 3 – frame suspension; 4 – oven; 5 – steering rack; 6 – a pedal Assembly; 7 – jointed steering shaft; 8 – instrument panel; 9 – pull the gearshift lever; 10 – sport seats-bucket; 11 – integrated safety frame; 12 – fuel tank; 13 – rear shelf panel; 14 – power unit; 15 – exhaust system

 
The result of the work over the body was the layout of the car from clay life size, dismembered risk on the part. With this layout were taken the rough of the matrix, and it is rough shaped parts made of fiberglass. After that, the frame was removed all the clay, installed rough parts made from fibreglass, modeled interior elements, hinges and locks operable panels. It was further deduced the gaps between the panels, the rough parts were covered with soil and specialise, then painted. Aligned body panels were removed the fine matrix, which was then wileyways fine body parts.
 
The body consists of more than a dozen fixed and folding panels: bonnet and boot lid, a roof, two sidewalls, a pair of doors (glued from two parts) and several smaller elements. The thickness of the fiberglass panels – 4 mm. Binder was not giving shrinkage is enough fluid, not very toxic epoxy composition “etal-370”. Massive hinged hood panel and a trunk lid for greater rigidity are places of sandwich structure: fibreglass (3mm) – foam (10 mm) – glass fibre (2 mm). The outer surface of panels formed with a layer of polyester gelcoat thickness of 0.5 mm, followed by two layers of fiberglass with a density of 220 g/m2, then three layers of stalloreggi a density of 300 g/m2. The total weight of the body panels is about 65 kg.
At the end of work on the body resumed work on the chassis. The base part of pendants from the VAZ-1111 has undergone changes: on the wheel hubs applied four pins instead of three, for the expansion of the installed gauge wheels 14 inches in diameter with spacers with a thickness of 20 mm. Installed struts and springs company “Plaza” was originally intended for “Oka” ring championship among juniors. The process of compression/rebound of the front suspension is 50/50 mm, compression/rebound rear suspension -60/60 mm roll center suspension closer to the road surface, which contributes to the minimum yaw on rough roads, the front suspension used a stabilizer bar and increased the angle of the longitudinal struts (castor) to 6 degrees (for the stabilization of the steered wheels). Similar suspension tuning with a minimum course suitable only for smooth tracks, for roads with large irregularities, they are too hard.
 
Mock body
 
The layout of the body
 
The compression stroke in the front 50 mm / rear 60 mm
Rebound front 50 mm / rear 60 mm

 
Design front and rear suspensions
 
The design of the front and rear suspensions
 
The power unit of “Oka” also has been changed. The standard volume of the engine was increased to 850 cm3, used a new camshaft and exhaust manifold, which increased power from 33 HP up to 48 HP
 
Radiator engine cooling system and heating system located in the front of the machine. The coolant is fed to them through pipes, running inside the right door sill of the car. Two interconnected fuel tank in the form of a rounded triangular prisms with a total capacity of 30 litres are made of welded aluminum and are on the floor behind the seats.
 
The transmission includes a limited slip differential to eliminate wheel spin. Also applied to the main pair with a ratio of 4.54 to compensate for larger diameter wheels. Gear shift is a rod that goes under the transmission.
 
Brake system – dual circuit “front – rear”, equipped with vacuum booster, disc brakes on all wheels and the pressure regulator. The hand brake, and clutch, – hydraulic and acts on the rear wheels.
 
Power steering adapted from “Oka” with the driveline in the steering shaft. The steering wheel is made in classic style with the steel hub and the rim made of wood.
On the panel used a sports instruments with white scales from the VAZ-2106. The upper part of the panel with visors made of fiberglass and covered in black leather, the lower part covered with varnished wood trim. Handle gear made of wood. The interior is covered with black carpet, sport seats-buckets are made of fiberglass in black gel coat with leather inserts segment. Both seats have three-point inertia seat belts. Directly on the engine located flip-up shelf, made of plywood, which allows access to the motor, and when folded serves as storage in the cabin for easy things. On the floor, in niches under the seats made mounting for first aid kit and fire extinguisher.
 
For ventilation of the cabin has swivel vents in the door Windows, glass doors can not be lowered. Themselves glass doors and rear window made of polycarbonate 3 mm thick, the windshield is made of triplex. Doors open up and forward on the gas stops. Fit inside requires special skill, because the opening is still small, but sitting inside is quite cozy, despite the minimal amount of space. Front and rear hood fully recline for access to units of the car. In the closed position, they, in addition to locks, are locked at the edges of the rubber clasps. In General, the car very closely linked.
 
Making of the body
 
Manufacture the body
 
Circuit opening trunk lid (front), hood of the engine compartment (rear) and doors (on the sides)
 
Circuit opening trunk lid (front), hood of the engine compartment (rear) and doors (on the sides)

 
Test chassis
 
Test chassis
 
Interior and dashboard of the car
 
Interior and dashboard of the car
 
Car
 
The car “Pegasus” (the rear signal lights from “Volkswagen beetle”)
 
The car body is painted in bright red acrylic paint on top applied another coat of varnish. After painting the body panels are polished, which gives a greater depth of color.
 
Vehicle dynamics, despite the small engine, for a modern civilian vehicle. Classical scheme with rear wheel drive, weight distribution 45/55 and sharp steering give a pleasant impression of drive. On the gas it reacts confident acceleration. When braking the machine due to intense brakes disc brakes on all wheels. The force on the brake pedal is easily dispensed with pneumatic booster.
 
In the straight-ahead driving on the road the car feels stable, thanks to the suspension settings and significant corner castor tires and wheels. Wheel suspension with small moves well swallows small bumps and cracks in the road, but on large bumps showing excessive rigidity. In turn, the car almost lurches, due to low centre of mass. If speeding in a fast turn, the car blows evenly on the outward path, which corresponds to neutral cornering. It is the behavior of a vehicle valued participants in the Amateur ring races.
 
Overall, I must admit that the Pegasus matches the feel of the classic sports car of the 1960-ies both in appearance and riding qualities. It helps a stylized retro controls.
 
The presented vehicle is similar to the classic “Porsche 356 Speedster”. Today, such cars have become an expensive toy for collectors, fans of classic racing and just car of the day.
 
Basic data of the car “Pegas coupe”
 
The circuit layout……………………………………………………………rear-engined two-door coupe
Curb weight avtomobilya…………………………………………………………………………………500 kg
Total weight avtomobilya…………………………………………………………………………………………..640 kg
Weight in % of the axes with two passengers “in front/rear”………………………………………….45/55.
Dimensions:
dline………………………………………………………………………………………………………………….3170 mm
Sirina………………………………………………………………………………………………………………. 1535 mm
wysota…………………………………………………………………………………………………………………1150 mm
Power dvigatelya……………………………………………………………………………………48 HP (35 kW)
Maximum skorosti………………………………………………………………………………………….150 km/h
Acceleration time to 100 km/CH…………………………………………………………………………………………….12с
The volume of the fuel Baka………………………………………………………………………………………………..30 l

 
A. ZHILIN, Yaroslavl

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