Flying through thick cloud could cause the compressor case to shrink and rub the blades causing catastrophic engine failures and loss of the aircraft.
2.
The impeller ( compressor ) and compressor casing of the 1937 Power Jets WU jet engine was made from RR . 56 and RR . 55 respectively.
3.
Fedden himself criticized the attachment of the 004's compressor casing, which was in two halves, bolted to the half-sections of the stator assemblies.
4.
Ultimately, rubbing can occur between compressor blades and the compressor casing, leading to crack initiation at the root of the blades, resulting in eventual blade failure.
5.
The fire could not be put out because the engine's two extinguishers had become ineffectual following the destruction caused to the engine cowling by the broken compressor casing.
6.
The compressor casing was based on Whittle's Type 16 W . 2 / 500 compressor case which was more aerodynamically efficient than that on the Derwent but also eliminated cracking.
7.
The compressor casing was based on Whittle's Type 16 W . 2 / 500 compressor case which was more aerodynamically efficient than that on the Derwent but also eliminated cracking.
8.
Further complication arose from the ducted fan which consisted of three stages of blading attached to the outside of the rotating compressor casing, with stators attached to the inside of the engine outer casing.
9.
This is a design similar to the western compressor case, a patent for which was filed at least as early as 1954, and granted in'56 ( US pat . 2, 737, 009 ).
10.
Otto Hartkopf, then acting works manager, conducted the Junkers factory tour, explaining all the jet engine drawings had already been removed . production, including several other plants, was expected to reach 5, 000 per month . ( At war's end, deliveries of 004s had reached 1, 500 a month . ) The Mission observed the construction methods of the 004; Fedden criticized the attachment of the 004's compressor casing, which was in two halves, bolted to the half-sections of the stator assemblies.
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