In the past, aircraft engines would run turbochargers in stages, where the first stage compressor would feed the inlet of the second stage compressor that would further compress the air before it enters the engine.
32.
A simple and robust unit with six-stage compressor, annular combustor, and single-stage turbine, it initially gave 1, 200 pounds of thrust but improved to 1, 600 in production versions.
33.
Overall design and dimensions were similar to the 101, but the new engine included a nine-stage compressor in place of the earlier seven-stage one, and a smaller two-stage turbine to power it.
34.
The supercharger installation, with detail work by Clifford Tinson, was a two-stage system; the first-stage compressor was permanently engaged but the second-stage was engaged by the pilot at the correct height.
35.
Initial work started in 1927, and by 1929 this project had progressed to the point of building an extremely simple " engine " consisting of a single-stage compressor and turbine with a single row of stators in front of each.
36.
One is that the-40 uses a 4 stage compressor rather than the 3 stage compressor that the original TRI-60 models use ( although several newer variants of the TRI-60 use a 4 stage compressor as well ).
37.
One is that the-40 uses a 4 stage compressor rather than the 3 stage compressor that the original TRI-60 models use ( although several newer variants of the TRI-60 use a 4 stage compressor as well ).
38.
One is that the-40 uses a 4 stage compressor rather than the 3 stage compressor that the original TRI-60 models use ( although several newer variants of the TRI-60 use a 4 stage compressor as well ).
39.
Model 13 piston engine a license-built version of the German Hirth HM 504 inverted, inline-four cylinder air-cooled engine, with the " model 13 " version indicating its adaptation to drive a single-stage compressor.
40.
The new "'D . 11 Doris "'design consisted of an enlarged Betty-like 17-stage compressor / 8-stage turbine section, and a mechanically separate 5-stage low-pressure turbine to drive the propeller.
