Walter Pollux
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The Walter Pollux is an aircraft engine from the Czechoslovak manufacturer Walter Motors as from 1932. It is a further development of the Walter Castor .
construction
The air cooled 9-cylinder four-stroke cycle - radial engine is made of steel liners with the twisted ribs, cylinders with light metal heads and has a dry sump - circulation lubrication . Each cylinder has two valves, which are controlled by a cam disk via push rods and rocker arms, and a main and articulated secondary connecting rod. The crankshaft is split and runs in two roller bearings and one axial ball bearing. The Pollux II R version is equipped with a 3: 2 epicyclic gear.
use
A Walter Pollux engine was used in the Fieseler F 2 Tiger flown by Gerhard Fieseler . With this machine he won the Coupe Mondiale d'Acrobatie Aerienne in Vincennes in June 1934 , which is regarded as the first world aerobatic championship. Other types in which the propulsion system was used were the B-122 sport aircraft , the Aero A-204 passenger aircraft and the prototype of the A-304 bomber .
Technical specifications
| Parameter | Walter Pollux | Walter Pollux II | Walter Pollux II R. |
|---|---|---|---|
| Construction year | 1932 | 1934 | 1935 |
| drilling | 135 mm | ||
| Hub | 170 mm | ||
| diameter | 1260 mm | ||
| Displacement | 21.9 l | ||
| compression | 6.0 | ||
| rated capacity | 320 hp (235 kW) at 1800 rpm | 355 hp (261 kW) at 1800 rpm | 382 hp (281 kW) at 2070 rpm |
| Full performance | 380 hp (279 kW) at 1900 rpm | 393 hp (289 kW) at 2000 rpm | 408 hp (300 kW) at 2250 rpm |
| Dry matter | 290 kg | 318 kg | 342 kg |
| Performance mass | 0.81 kg / hp | 0.8 kg / hp | |
| Displacement | 18.0 hp / l | 19.6 hp / l | |
| Fuel consumption | 87 kg / h | ||
| Lubricant consumption | 5.5 kg / h at 355 hp | ||
| Octane number | 80 | ||
literature
- Werner von Langsdorff : Handbook of aviation . Born in 1939. 2nd, unchanged edition. J. F. Lehmann, Munich 1937, p. 533/534 .
Web links
Individual evidence
- ↑ Vaclav Nemecek: Československá letadla . Naše Vojsko, Prague 1968, p. 314/315 (Czech).