Aermacchi Ala Blu
| Aermacchi | |
|---|---|
| Ala Blu | |
| Manufacturer | Aermacchi-Harley-Davidson |
| Sales description | Ala Blu 250 / Ala Blu GT |
| Production period | 1967 to 1970 |
| class | motorcycle |
| Motor data | |
| 1-cylinder 4-stroke | |
| Displacement (cm³) | 246 cc |
| Power (kW / PS ) | 10.1 kW |
| transmission | 4-speed / 5-speed |
| drive | Chain |
| Brakes | drums |
| Wheelbase (mm) | 1270 |
| Dimensions (L × W × H, mm): | 1970 × 600 × 880 |
| Previous model | Aermacchi Ala Azzurra |
The Aermacchi Ala Blu is a motorcycle that the Italian company Aermacchi-Harley-Davidson manufactured from 1967 to 1970. "Ala blu" means "blue wing" in German.
history
The construction of the Ala Azzurra , the 250cc touring model with low compression, was stopped in 1967. The successor was the Ala Blu, of which there was also a sportier GT model with higher handlebars.
technology
Engine and drive
The Ala Blu 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. From 1970 there was instead a five-speed gearbox. 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 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 Blu 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 Blu |
| Construction period | 1967-1970 |
| 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 / 5-speed |
| wheelbase | 1270 mm |
| Dimensions (L × W × H) | 1920 mm × 600 mm × 880 mm |
| Front / rear tires | 2.50 ″ × 17 ″ / 3.00 ″ × 17 |
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)