Cults
Turboprop Engine
by Cults
Last crawled date: 6 years, 1 month ago
On March 2017, Japanese domestic airplane named YS-11 was retired from about half century service.
YS-11 is equipped the turboprop engine named Rolls Royce "DART".
DART engine series were used Vickers "Viscount744 and 828" and Fokker "F27 Friendship" too in Japan.
Both the models of basic structure and features are the same.
Features of the engine are as follows;
(1) Centrifugal (Impeller type) compressor (2 stages)
(2) Can type Combustion Chamber (7 ea)
(3) Axial Flow Turbine (3 stages)
(4) Reduction gears and propeller shaft (reduction ratio = about 0.1)
(5) Air inlet cowling with Oil Cooler Air Passage
I worked with these engines for long time, therefore I tried to make "Cut-Model" as the memorial model on the desk.
Size and shape of every parts were taken from A4 sized sectional view sheet and some illustrations and pictures at this time.
Download files includes;
-files: STL Files - Sectionalized ZIP
-images: STL File Figure and Index Picture for assembly Aid
Purchase Parts Information;
-Bearings
WBC6-12ZZ (6 x 12 x 4) 6ea - Assemble to outer holes of each Panel ---- Please change these BRG size.---Sorry.
F686ZZ(6 x 1 3x 5) 2ea - Assemble to center of each Panel
689ZZ (9 x 17 x 5) 2ea - For LP and HP Impeller
6900ZZ (10 x 22 x 6) 2ea - For Prop-Shaft, Turbine Shaft
-Aluminum Tubes
9mm dia x Appox. 70mm - as Compressor Rotor Shaft (Make slots both ends)
6mm dia x Appox. 100mm - as Turbine to Compressor Coupling Shaft
-Screws
Micro screws M1.4x3L - Appox. 70 ea - Direct screw-in to 1 mm dia hole (No nut),
Head side flange hole is 1.5 mm dia.
Screws M2 x 20L - 1ea - M2 Tap is used - Starter associate parts
Screws M2 x 10L - Appox. 12ea - M2 Tap is used - Red. Gear Panels associate parts and IGV
Screws M2 x 6L - Appox. 4ea - M2 Tap is used - Diffusers and Turb. Shaft Coupling
Assembly Points
Rotors, Gear Train Set and Casings can be assembled and adjusted separately.
Combustion Air Casing is slid to the outlet elbow assembly until aft end clears from the turbine case its bore at first. Then slide back to bore. Gluing is optional.
Standard Skill (such as Drilling, Tapping, Filing, Tightening, Painting and Gluing etc) is needed and perseverance too.
Total Net Print Time: Approx. 50 HR
(Estimated as case of PLA, 0.4mm Nozzle, 0.2mm Layer Height, 40% infill and No raft and support)
Note: When at actual print, each parameter may be adjusted.
[Update]
I pepared the modified parts and some tools in ;
https://cults3d.com/en/3d-model/tool/turboprop-engine-modified-parts
I pepared the modified parts (No.2) - 2018.1.6
https://cults3d.com/en/3d-model/tool/turboprop-engine-modified-parts-no-2
I prepared the figure for Reduction assembly aid - 2018.1.30.
"01a-Reduction Gear01.jpg"
I pepared the modified parts (No.3) - 2018.2.13
https://cults3d.com/en/3d-model/tool/turboprop-engine-modified-parts-no-3
Before make this, please refer these. Thanks.
YS-11 is equipped the turboprop engine named Rolls Royce "DART".
DART engine series were used Vickers "Viscount744 and 828" and Fokker "F27 Friendship" too in Japan.
Both the models of basic structure and features are the same.
Features of the engine are as follows;
(1) Centrifugal (Impeller type) compressor (2 stages)
(2) Can type Combustion Chamber (7 ea)
(3) Axial Flow Turbine (3 stages)
(4) Reduction gears and propeller shaft (reduction ratio = about 0.1)
(5) Air inlet cowling with Oil Cooler Air Passage
I worked with these engines for long time, therefore I tried to make "Cut-Model" as the memorial model on the desk.
Size and shape of every parts were taken from A4 sized sectional view sheet and some illustrations and pictures at this time.
Download files includes;
-files: STL Files - Sectionalized ZIP
-images: STL File Figure and Index Picture for assembly Aid
Purchase Parts Information;
-Bearings
WBC6-12ZZ (6 x 12 x 4) 6ea - Assemble to outer holes of each Panel ---- Please change these BRG size.---Sorry.
F686ZZ(6 x 1 3x 5) 2ea - Assemble to center of each Panel
689ZZ (9 x 17 x 5) 2ea - For LP and HP Impeller
6900ZZ (10 x 22 x 6) 2ea - For Prop-Shaft, Turbine Shaft
-Aluminum Tubes
9mm dia x Appox. 70mm - as Compressor Rotor Shaft (Make slots both ends)
6mm dia x Appox. 100mm - as Turbine to Compressor Coupling Shaft
-Screws
Micro screws M1.4x3L - Appox. 70 ea - Direct screw-in to 1 mm dia hole (No nut),
Head side flange hole is 1.5 mm dia.
Screws M2 x 20L - 1ea - M2 Tap is used - Starter associate parts
Screws M2 x 10L - Appox. 12ea - M2 Tap is used - Red. Gear Panels associate parts and IGV
Screws M2 x 6L - Appox. 4ea - M2 Tap is used - Diffusers and Turb. Shaft Coupling
Assembly Points
Rotors, Gear Train Set and Casings can be assembled and adjusted separately.
Combustion Air Casing is slid to the outlet elbow assembly until aft end clears from the turbine case its bore at first. Then slide back to bore. Gluing is optional.
Standard Skill (such as Drilling, Tapping, Filing, Tightening, Painting and Gluing etc) is needed and perseverance too.
Total Net Print Time: Approx. 50 HR
(Estimated as case of PLA, 0.4mm Nozzle, 0.2mm Layer Height, 40% infill and No raft and support)
Note: When at actual print, each parameter may be adjusted.
[Update]
I pepared the modified parts and some tools in ;
https://cults3d.com/en/3d-model/tool/turboprop-engine-modified-parts
I pepared the modified parts (No.2) - 2018.1.6
https://cults3d.com/en/3d-model/tool/turboprop-engine-modified-parts-no-2
I prepared the figure for Reduction assembly aid - 2018.1.30.
"01a-Reduction Gear01.jpg"
I pepared the modified parts (No.3) - 2018.2.13
https://cults3d.com/en/3d-model/tool/turboprop-engine-modified-parts-no-3
Before make this, please refer these. Thanks.
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