1988 Ed.]
Import and Export (Strategic Commodities) Regulations
[CAP. 60
G 55
Table 1 (see IL1460(b)8)
[Subsidiary]
1.
Materials and manufacturing procedures
Initial certi-fication date
Engine
Type certifi-cate number
Ceramic, ceramic-composite or composite hot-section components (combuster, turbine blades and venes, seals, discs, flow path)
None
Turbine blades on basis of directional solidification or monocrystal technology
directional solidification
monocrystal technology
30/09/74(*) 25/11/80
JTYD-7F JT9D-7R4
E20EA E3NE
Turbine blades consisting of several parts connected by diffusion bonding
Fibre technology in frames or in highly stressed discs, casings, blades and vanes
Protective coating technology for air-cooled turbine blades and vanes with internal and external cooling passages and their related flow paths capable of operating in high gas temperatures environments (in excess of 1499°C), irrespective of the actual gas temperature environment in which they will be used; involving applications or metallic or ceramic materials by vapour, pack, plasma, electron beam, sputtering or sintering processes
None
**
Metallic coatings
plasma sprayed
other
None
None
30/09/74
JT9D-7F None
E20EA
!
None
Ceramic coatings
Application of powder metallurgy for fan compressor and turbine blades or vanes; discs, wheels, reduction gears, engine main shafts and frames
discs
01/78
fan, compressor and turbine blades or vanes, wheels, reduction gears, engine main shafts and frames
JT8D-17
None
EZEA
Cooled components on basis of electrostream or laser drilling methods;
electrostream drilling
laser drilling
30/09/74 16/09/70(**)
JT9D-7F CF6-6
E20EA
E23EA
Electron beam drilling for small holes in turbine blades and vanes (Item IL.1080I(c) sets out the parameters for small holes)
None
Titanium or superalloy-casting on basis of centrifugal techniques
13/01/78
TFE-731
E6WE
Ceramic core casting technology for casting holes in turbine blades and vanes
07/04/71(***)
JT8D-15
EZEA
II. Construction methods
Adjustable flow path geometry and Associated control systems for:
fans
gas generator turbine(s)
fan/power turbine(s)
propelling nozzles
None
None
None
None
(Adjustable flow path geometry and associated control systems do not include inlet guide vanes, variable pitch fans, variable stators or bleed valves for compressors.)
Full authority or hybrid digital electronic control and respective sensor equipment
25/11/80
JT9D-7R4
E3NE
High temperature (capable of utilizing gases heated above 1100°C) heat exchanges for preheating compressor exit air
None
Combustors with combustion in several stages
08/11/79
CFM-56
E2GL
Maintenance of compressor or turbine tip clearance through methods employing active compensating casing technology:
compressor alone
turbine alone
01/04/81
compressor and turbine
None JT9D-7R4
E1 None
ESNE
Ceramic bearing
None
Nozzles with thrust vectoring (not including reverse thrust)
None
N.B.
Technology for computer-aided design/manufacturing (CAD/CAM) is not released by the deletion of any technology from the above list.
(*) Embargo period extended by three years to 30 September 1989.
(**) Embargo period extended by three years to 16 September 1988. (***) Embargo period extended by three years to 7 April 1989.
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