RC India
Welcome Guest, please login or register.
 
Pages: [1] 2  All   Go Down
0 Members and 1 Guest are viewing this topic. Topic Tools Topic Tools 
Read
« on: June 19, 2020, 06:13:49 PM »
tonyStark
Plane Lover
Senior Member

***

Reputation Power: 2 
tonyStark has no influence.
Offline Offline

City: Thane
State: Maharashtra
RC Skills: Intermediate
Posts: 106
Join Date: Nov, 2016




Hi Folks,

This has been waiting for a while on my radar and finally I have decided to dive deep into this. This will be a build thread for turbine jet engine.

Little background about myself: I like meddling with things and built something that is interesting. I am a mechanical engineer and now an IT professional (damn, what are the odds  Giggle). I have 4 years of professional experience turbine commissioning and operations at thermal power plant and three years of experience in model jet engines (not flying).

This built is going to be completely experimental in nature. It may succeed or it may fail depending upon many factors.

The proposed design specs are:

Diameter: 80 mm
length: ~200-240 mm
Thrust: ~50N-60N (5-6KG)

The design will be a scratch development and won't be a replica of any commercial product.

If there is sufficient interest I will continue with the thread.
Logged

Sponsored by: X-Genesys TurboJets

Drone- A night hawk racer 250
Jet engine- Jetcat P80 (8Kg)
Self build- XG TS100 (10Kg)
WIP-         XG TS60   (6Kg)
 

Read
« Reply #1 on: June 19, 2020, 06:25:00 PM »
THE RC GUY
Plane Lover
Active Member
**

Reputation Power: 1 
THE RC GUY has no influence.
Offline Offline

City: jaipur
State: Rajasthan
RC Skills: Intermediate
Posts: 35
Join Date: Jun, 2020



5-6 kg?  Bow Hats Off Salute
multiple rotors??
Logged
 

Read
« Reply #2 on: June 19, 2020, 06:50:24 PM »
Mohammed Naveed
Plane Lover
Forum Hero
*****

Reputation Power: 10 
Mohammed Naveed has no influence.
Offline Offline

City: banglore
State: Karnataka
RC Skills: Intermediate
Posts: 612
Join Date: Jul, 2015



Oh yes, please make a thread ! Interested to learn more about it!
Logged
 

Read
« Reply #3 on: June 19, 2020, 08:17:36 PM »
K K Iyer
Global Moderator
Forum Hero
*****

Reputation Power: 52 
K K Iyer is on the verge of being accepted.K K Iyer is on the verge of being accepted.K K Iyer is on the verge of being accepted.K K Iyer is on the verge of being accepted.K K Iyer is on the verge of being accepted.
Offline Offline

City: Indore
State: Madhya Pradesh
RC Skills: Intermediate
Posts: 4414
Join Date: Jan, 2012



Subscribed!
Logged
 

Read
« Reply #4 on: June 19, 2020, 08:28:28 PM »
tonyStark
Plane Lover
Senior Member

***

Reputation Power: 2 
tonyStark has no influence.
Offline Offline

City: Thane
State: Maharashtra
RC Skills: Intermediate
Posts: 106
Join Date: Nov, 2016



Yes. 5 to 6Kg of thrust. One can use it in a heavy & big models.

I didn't get your point of multi rotor. It will be single rotor(single shaft) design. There are no multi rotor design in model jet engines.
Logged

Sponsored by: X-Genesys TurboJets

Drone- A night hawk racer 250
Jet engine- Jetcat P80 (8Kg)
Self build- XG TS100 (10Kg)
WIP-         XG TS60   (6Kg)
 

Read
« Reply #5 on: June 19, 2020, 08:40:53 PM »
tonyStark
Plane Lover
Senior Member

***

Reputation Power: 2 
tonyStark has no influence.
Offline Offline

City: Thane
State: Maharashtra
RC Skills: Intermediate
Posts: 106
Join Date: Nov, 2016



Getting started !!!

I have drawn some rough drawings of the possible dimensions. Here are the raw parts now. All the parts are depicted and destined.

Work will start soon. Shaft would be the first candidate. (lucky he  Grin!!!)


09ea6ba4-c64f-4a5c-beb8-bf0bfa2fb523.jpg
Re: Kick starting jet turbine project (60N class)
* 09ea6ba4-c64f-4a5c-beb8-bf0bfa2fb523.jpg (72.14 KB, 800x711 - viewed 152 times.)
Logged

Sponsored by: X-Genesys TurboJets

Drone- A night hawk racer 250
Jet engine- Jetcat P80 (8Kg)
Self build- XG TS100 (10Kg)
WIP-         XG TS60   (6Kg)
 

Read
« Reply #6 on: June 19, 2020, 09:38:35 PM »
THE RC GUY
Plane Lover
Active Member
**

Reputation Power: 1 
THE RC GUY has no influence.
Offline Offline

City: jaipur
State: Rajasthan
RC Skills: Intermediate
Posts: 35
Join Date: Jun, 2020



have you tried 3d printing prototype models sir?
Logged
 

Read
« Reply #7 on: June 19, 2020, 09:40:31 PM »
THE RC GUY
Plane Lover
Active Member
**

Reputation Power: 1 
THE RC GUY has no influence.
Offline Offline

City: jaipur
State: Rajasthan
RC Skills: Intermediate
Posts: 35
Join Date: Jun, 2020



 Hats Off i'm sure you know what you are doing a lot better than most of us but still i thought of recommending something Hats Off
Logged
 

Read
« Reply #8 on: June 19, 2020, 09:45:31 PM »
THE RC GUY
Plane Lover
Active Member
**

Reputation Power: 1 
THE RC GUY has no influence.
Offline Offline

City: jaipur
State: Rajasthan
RC Skills: Intermediate
Posts: 35
Join Date: Jun, 2020



There are no multi rotor design in model jet engines.
thats why i had asked you
Logged
 

Read
« Reply #9 on: June 19, 2020, 10:12:05 PM »
Mohammed Naveed
Plane Lover
Forum Hero
*****

Reputation Power: 10 
Mohammed Naveed has no influence.
Offline Offline

City: banglore
State: Karnataka
RC Skills: Intermediate
Posts: 612
Join Date: Jul, 2015



Getting started !!!

I have drawn some rough drawings of the possible dimensions. Here are the raw parts now. All the parts are depicted and destined.

Work will start soon. Shaft would be the first candidate. (lucky he  Grin!!!)



Would it be possible for you to mention material used and why and also what type of tooling used for achieving final product! It would be helpful I feel!
Logged
 

Read
« Reply #10 on: June 19, 2020, 10:34:02 PM »
tonyStark
Plane Lover
Senior Member

***

Reputation Power: 2 
tonyStark has no influence.
Offline Offline

City: Thane
State: Maharashtra
RC Skills: Intermediate
Posts: 106
Join Date: Nov, 2016



Sure.

Most of the parts are aluminium (6061 grade or Hindalium).
The shaft tunnel can be made out of aluminium or steel. I choose Aluminium given its easier machinability.
The shaft is EN24T simply for its high tensile properties and strength. You can also go for 12.9 grade allen bolt of this size.
« Last Edit: June 20, 2020, 11:17:30 AM by tonyStark » Logged

Sponsored by: X-Genesys TurboJets

Drone- A night hawk racer 250
Jet engine- Jetcat P80 (8Kg)
Self build- XG TS100 (10Kg)
WIP-         XG TS60   (6Kg)
 

Read
« Reply #11 on: June 19, 2020, 10:36:00 PM »
tonyStark
Plane Lover
Senior Member

***

Reputation Power: 2 
tonyStark has no influence.
Offline Offline

City: Thane
State: Maharashtra
RC Skills: Intermediate
Posts: 106
Join Date: Nov, 2016



3D printing won't help in such design given the amount of strength and pressure they come into.
Logged

Sponsored by: X-Genesys TurboJets

Drone- A night hawk racer 250
Jet engine- Jetcat P80 (8Kg)
Self build- XG TS100 (10Kg)
WIP-         XG TS60   (6Kg)
 

Read
« Reply #12 on: June 20, 2020, 09:39:27 AM »
Bilal
Plane Lover
Forum Hero

*****

Reputation Power: 8 
Bilal has no influence.
Offline Offline

City: Hyderabad
State: Telangana
RC Skills: Intermediate
Posts: 535
Join Date: Mar, 2011

scratch builder and DIYer



subscribed and closely following
Logged

Cessna - 184
Mr. Moss
Self-Design Glider
550 DIY Quad
Scratch Build TriCopter
VT-Allrounder
Telemaster 400
ZMR 250
 

Read
« Reply #13 on: June 20, 2020, 04:54:05 PM »
sanjayrai55
Plane Lover
Forum Hero

*****

Reputation Power: 79 
sanjayrai55 has a powerful will.sanjayrai55 has a powerful will.sanjayrai55 has a powerful will.sanjayrai55 has a powerful will.sanjayrai55 has a powerful will.sanjayrai55 has a powerful will.sanjayrai55 has a powerful will.
Offline Offline

City: Gurgaon
State: Haryana
RC Skills: Intermediate
Posts: 7779
Join Date: Dec, 2011

Don't wake a Tiger until you've factored the teeth



Sure.

Most of the parts are aluminium (6061 grade or Hindalium).
The shaft tunnel can be made out of aluminium or steel. I choose Aluminium given its easier machinability.
The shaft is EN24T simply for its high tensile properties and strength. You can also go for 12.9 grade allen bolt of this size.
Good choice of materials. What about the blades, shaft, bearings etc?
Logged

Sanjay - Gravity is my enemy
 

Read
« Reply #14 on: June 20, 2020, 09:27:16 PM »
tonyStark
Plane Lover
Senior Member

***

Reputation Power: 2 
tonyStark has no influence.
Offline Offline

City: Thane
State: Maharashtra
RC Skills: Intermediate
Posts: 106
Join Date: Nov, 2016



Not much progress today.

The shaft round I got was of way bigger in Dia., cutting that much is a waste so I went to the market (10km from my place) but I had some problem in my bike midway. By the time I fixed and reached the market, it was close. Now it will open on Monday only. Will see, If I can machine this round tomorrow.

@sanjay Shaft is En24T. Bearing I will decide in due course,mostly GRW.
Logged

Sponsored by: X-Genesys TurboJets

Drone- A night hawk racer 250
Jet engine- Jetcat P80 (8Kg)
Self build- XG TS100 (10Kg)
WIP-         XG TS60   (6Kg)
 

Read
« Reply #15 on: June 20, 2020, 11:19:36 PM »
asperised
Plane Lover
Active Member

**

Reputation Power: 1 
asperised has no influence.
Offline Offline

City: Chennai
State: Tamil Nadu
RC Skills: Beginner
Posts: 20
Join Date: Apr, 2020



Interested, please continue posting!
Logged
 

Read
« Reply #16 on: June 22, 2020, 10:44:12 PM »
tonyStark
Plane Lover
Senior Member

***

Reputation Power: 2 
tonyStark has no influence.
Offline Offline

City: Thane
State: Maharashtra
RC Skills: Intermediate
Posts: 106
Join Date: Nov, 2016



Update:

last Saturday & Sunday went into designing & machining the shaft.

Shaft is one of the most important component. The turning has to be absolutely concentric and mating surfaces orthogonal to avoid shaft bending and vibrations. The first resonance is expected to be around 2400 to 2900 RPM.

I could not resist the temptation and turned down the 20mm round. En24T is not easy to machine, you can't take heavy cut in one go. There will be lots of heat and ample cooling fluid is need with speed around 400-450 rpm. It took 7-8 hours to get to this and still final fit and tolerances are yet to finish. The fit will depend on the mating component.

d767cd33-2a60-4ebe-b16a-580538a4afe8.jpg
Re: Kick starting jet turbine project (60N class)
* d767cd33-2a60-4ebe-b16a-580538a4afe8.jpg (57.33 KB, 800x600 - viewed 94 times.)
This post has 2 more images(s)/attachment(s). Please login or register to view them.
Logged

Sponsored by: X-Genesys TurboJets

Drone- A night hawk racer 250
Jet engine- Jetcat P80 (8Kg)
Self build- XG TS100 (10Kg)
WIP-         XG TS60   (6Kg)
 

Read
« Reply #17 on: June 22, 2020, 11:40:02 PM »
ujjwaana
Plane Lover
Forum Hero

*****

Reputation Power: 28 
ujjwaana barely matters.ujjwaana barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Intermediate
Posts: 2366
Join Date: Oct, 2009



Wow !! Nice to know that you do have experience in TPP Turbine and Model Jet turbine . Else in most arguments with noobs, I had hard time convincing challenges in Material science, high temperature Lubrication, and extremely high tolerance machining.

Would you mind sharing where you got the chance to work on Model Jet Engines , because they are much rare opportunity than most Turbine types. Also, where you ot access to such machine tools, considering you too are a Software Professional like me, who had to build his Electronics lab from scratch - from Screwdrivers. Multi Meters to Signal Generators, Oscilloscope and RF Analyzer.

<Edit while you posted the Lathe Pics: Kudos : Keep the good work and heartiest well wishes and good luck for this project>
Logged

Futaba 8FG Super | HK-450v2 | FA-22 Raptor |AXN Floater-Jet | FunJet | Black Horse Edge 540 | Amp Master 015 | 2.3M Big Brother
 

Read
« Reply #18 on: June 23, 2020, 12:56:17 PM »
THE RC GUY
Plane Lover
Active Member
**

Reputation Power: 1 
THE RC GUY has no influence.
Offline Offline

City: jaipur
State: Rajasthan
RC Skills: Intermediate
Posts: 35
Join Date: Jun, 2020



Which motor will you use for the edf sir?
Logged
 

Read
« Reply #19 on: June 23, 2020, 01:28:54 PM »
asperised
Plane Lover
Active Member

**

Reputation Power: 1 
asperised has no influence.
Offline Offline

City: Chennai
State: Tamil Nadu
RC Skills: Beginner
Posts: 20
Join Date: Apr, 2020



I don't think he is trying to make an EDF. I recommend you do some research on Jet Turbines.

Regards,
Nitesh
Logged
 

Read
« Reply #20 on: June 23, 2020, 06:45:26 PM »
tonyStark
Plane Lover
Senior Member

***

Reputation Power: 2 
tonyStark has no influence.
Offline Offline

City: Thane
State: Maharashtra
RC Skills: Intermediate
Posts: 106
Join Date: Nov, 2016



yes, Nitesh is right. It is not an EDF.

It is a model jet engine very similar to what you see hanging under the wings of an aeroplane, just its very small and is for mostly RC purpose. If you have a RC plane which is quite big or you need a real jet flying experience, you install one of these. They run, sound and feel like real big jet engines.
Logged

Sponsored by: X-Genesys TurboJets

Drone- A night hawk racer 250
Jet engine- Jetcat P80 (8Kg)
Self build- XG TS100 (10Kg)
WIP-         XG TS60   (6Kg)
 

Read
« Reply #21 on: June 23, 2020, 07:15:15 PM »
K K Iyer
Global Moderator
Forum Hero
*****

Reputation Power: 52 
K K Iyer is on the verge of being accepted.K K Iyer is on the verge of being accepted.K K Iyer is on the verge of being accepted.K K Iyer is on the verge of being accepted.K K Iyer is on the verge of being accepted.
Offline Offline

City: Indore
State: Madhya Pradesh
RC Skills: Intermediate
Posts: 4414
Join Date: Jan, 2012



@tonystark,

With your metal working skills and facilities, maybe you could build a ram jet like Dynajet, as a warm up exercise before building the turbine!

And I expect you’d have already considered turbochargers as a parts source...

Best wishes for your project.

BTW, I remember having seen videos of a (fairly large) working homemade jet turbine by someone somewhere in Punjab.
NOT an EDF  Grin.
Will share if I can locate them.

Regards
Iyer
« Last Edit: June 23, 2020, 07:35:02 PM by K K Iyer » Logged
 

Read
« Reply #22 on: June 23, 2020, 07:35:49 PM »
tonyStark
Plane Lover
Senior Member

***

Reputation Power: 2 
tonyStark has no influence.
Offline Offline

City: Thane
State: Maharashtra
RC Skills: Intermediate
Posts: 106
Join Date: Nov, 2016



Else in most arguments with noobs, I had hard time convincing challenges in Material science, high temperature Lubrication, and extremely high tolerance machining.

Where you ot access to such machine tools, considering you too are a Software Professional like me, who had to build his Electronics lab from scratch - from Screwdrivers. Multi Meters to Signal Generators, Oscilloscope and RF Analyzer.

Indeed, metallurgy and machining process is with no doubt play a vital role in jet engines. The jet engine parts like the shaft, turbine blades and NGV come under very high temperature and pressure. Sustaining the mechanical properties at this elevated temperature needs special alloys. About tolerance,for example, the gap between the compressor and its shroud has to be 0.1mm for optimal efficiency. And the same goes for turbine and NGV.

The workshop is self built over the years, the way you have built from the scratch, as a part of the startup. Been into turbine for almost 7 years, initially big ones (TPP) and then shifted to model ones. I own a jetcat for like 3 years or more.

@KKIyer
There are many jet turbine prototypes in my closet worked upon over the last 4-5 years. All at different stages of development. I have been warming up a lot... Giggle

I have a running prototype TS 100 (10KG thrust) with 105mm dia. & 1.2kg weight. An upgrade to this size TS 120N is under development aimed at 120N thrust. The other one TS 80(80N) with a 91mm dia. is in early design stage.

The build I am sharing here is TS 60 with 80mm dia. is another one in the series aimed at creating something small with powerful thrust and reliable operation.
Logged

Sponsored by: X-Genesys TurboJets

Drone- A night hawk racer 250
Jet engine- Jetcat P80 (8Kg)
Self build- XG TS100 (10Kg)
WIP-         XG TS60   (6Kg)
 

Read
« Reply #23 on: June 23, 2020, 09:14:28 PM »
K K Iyer
Global Moderator
Forum Hero
*****

Reputation Power: 52 
K K Iyer is on the verge of being accepted.K K Iyer is on the verge of being accepted.K K Iyer is on the verge of being accepted.K K Iyer is on the verge of being accepted.K K Iyer is on the verge of being accepted.
Offline Offline

City: Indore
State: Madhya Pradesh
RC Skills: Intermediate
Posts: 4414
Join Date: Jan, 2012



@tonystark,

I wonderered where you went after Nov 2016  Grin
Logged
 

Read
« Reply #24 on: June 24, 2020, 12:31:13 AM »
tonyStark
Plane Lover
Senior Member

***

Reputation Power: 2 
tonyStark has no influence.
Offline Offline

City: Thane
State: Maharashtra
RC Skills: Intermediate
Posts: 106
Join Date: Nov, 2016



Yes,  Grin.

meanwhile my caliper betrayed me and gave and 0.08mm error while machining the shaft. The compressor end was supposed to be 5.9. Caliper showed me 5.82. When i reached 5.82 and checked, damn, all in vain. There will be play in the mating component.

This is a scrap piece now. I will have to machine a new one from the beginning. It was such a beautiful piece coming out. Bang Head

0ece6279-617c-4897-acfd-6a0a1faf3452.jpg
Re: Kick starting jet turbine project (60N class)
* 0ece6279-617c-4897-acfd-6a0a1faf3452.jpg (47.98 KB, 600x800 - viewed 53 times.)
Logged

Sponsored by: X-Genesys TurboJets

Drone- A night hawk racer 250
Jet engine- Jetcat P80 (8Kg)
Self build- XG TS100 (10Kg)
WIP-         XG TS60   (6Kg)
 

Pages: [1] 2  All   Go Up
Jump to:  

Related Topics
Subject Started by Replies Views Last post
Kick Ass Plane by HC
Electric Planes
ujjwaana 5 2666 Last post May 30, 2010, 08:51:57 AM
by Drone
3D Heli 500 Class
For Sale - Completed
akumar40 9 4723 Last post May 06, 2012, 10:23:11 PM
by akumar40
STARTING AN RC GLIDER PROJECT
Kites, Trains, Free Flight and All Others
shobhit17 10 5718 Last post November 11, 2013, 09:58:04 PM
by shobhit17
STARTING AN RC GLIDER PROJECT « 1 2  All »
Electric Planes
shobhit17 35 23072 Last post February 02, 2014, 11:54:05 AM
by shobhit17
jetmach 60 turbine build. pst 600r turbine engine « 1 2  All »
Gas/Glow/Nitro Planes
paladugu_sujith 34 21550 Last post March 31, 2015, 09:52:46 PM
by paladugu_sujith