Aermacchi Ala Azzurra
| Aermacchi | |
|---|---|
 Aermacchi Ala Azzurra in the Aermacchi Museum |
|
| Ala Azzurra | |
| Manufacturer | Aeronautica Macchi / Aermacchi-Harley-Davidson |
| Sales description | Ala Azzurra 250 |
| Production period | 1957 to 1967 |
| class | motorcycle |
| Motor data | |
| 1-cylinder 4-stroke | |
| Displacement (cm³) | 246 cc |
| Power (kW / PS ) | 10.1 kW |
| Top speed ( km / h) | 125 km / h |
| transmission | 4-speed |
| drive | Chain |
| Brakes | drums |
| Wheelbase (mm) | 1270 |
| Dimensions (L × W × H, mm): | 1970 × 600 × 880 |
| Empty weight (kg) | 112 |
| Previous model | Aermacchi Chimera 250 |
| successor | Aermacchi Ala Blu |
The Aermacchi Ala Azzurra is a motorcycle manufactured by the Italian company Aeronautica Macchi from 1957 to 1967. "Ala azzurra" means "sky blue wing" in German.
history
The manufacturer's first motorcycle with a displacement of more than 150 cm³, the Aermacchi Chimera 175, presented at the end of 1956, could not really establish itself on the market because of its fairing and its unusual appearance. Even the version with an enlarged engine that came out the following year did not bring the desired success. The manufacturer therefore decided to also offer more conventional motorcycles with uncovered engines.
The 250 machine from this series was the Ala Azzurra. There were also the Ala Bianca and Ala Rossa models with 175 engines. The Ala Verde sports model was developed from the Ala Azzurra .
technology
Engine and drive
The Ala Azzura has an air-cooled single - cylinder four-stroke engine with an almost horizontal cylinder. On the left stump of the double-bearing crankshaft there is a multi-plate oil bath clutch, via which the engine power is passed on to a straight-toothed four-speed gearbox. This transmission is operated with a rocker switch on the right side of the engine; the first course is downstairs. The transmission is connected to the rear wheel by a machine chain.
The two hanging valves are actuated via bumpers and rocker arms from the camshaft below , at the right end of which the interrupter contact for the battery ignition (battery: 6 V / 7 Ah) is attached.
The mixture is prepared by an oblique-flow carburetor with a round slide with a 22 mm passage and without an air filter. The tank has a volume of 18 liters. The chrome-plated exhaust pipe is pulled back on the right side of the machine and ends in a cigar-shaped silencer.
Frame and chassis
The Ala Azzurra has a central tube bridge frame without a tail boom. The rear swing arm is supported by two laterally arranged spring struts. The front wheel sits in an upside-down fork .
Wheels and brakes
The 17 ″ wheels are wire-spoke wheels and have full-hub drum brakes . The rear brake is operated via a foot lever on the left side of the engine and a linkage, the front with a cable from the handlebars.
Technical specifications
| Type | Ala Azzurra |
| Construction period | 1957-1967 |
| Displacement | 246.2 cc |
| Bore × stroke | 66 mm × 72 mm |
| compression | 7: 1 |
| power | 13.7 PS (10.1 kW) |
| at speed | 6500 rpm. |
| transmission | 4-speed |
| wheelbase | 1270 mm |
| Dimensions (L × W × H) | 1920 mm × 600 mm × 880 mm |
| Empty weight | 112 kg |
| Front / rear tires | 2.50 ″ × 17 ″ / 3.00 ″ × 17 ″ |
| Brakes front / rear | Drums, 160 mm / 140 mm |
| Top speed | 125 km / h |
| Fuel consumption | approx. 3.00 l / 100 km |
Sources and individual references
- ↑ a b Mick Walker: Aermacchi . Transport Source Books, Olney & Ipswich 1995. ISBN 1-85847-501-5 (English)
- ↑ a b c Ala Verde - Catalogo Parti di Ricambio . Spare parts catalog for the Aermacchi Ala Verde. Aermacchi-Harley-Davidson, Varese (Italian)
- ↑ a b Aermacchi-Harley-Davidson - Caratteristiche Tecniche - Technical Specifications - Caractéristiques Techniques . Aermacchi-Harley-Davidson, Varese approx. 1960 (Italian / English / French)
- ↑ a b Aeronautica Macchi - Motos - Scooters . Sales prospectus of the Aermacchi importer for Belgium and Luxembourg DEFCO SA, Liège (French)
