RC India
Home Help Calendar Login Register
Welcome Guest, please login or register.
 
Pages: [1]   Go Down
0 Members and 1 Guest are viewing this topic. Topic Tools Topic Tools 
Read
« on: July 24, 2010, 10:01:54 PM »
xxkrishxx
Plane Lover
Forum Hero

*****

Reputation Power: 10 
xxkrishxx has no influence.
Offline Offline

City: Bangalore/Vellakovil
State: Tamil Nadu
RC Skills: Beginner
Posts: 834
Join Date: May, 2010

FLY HIGH...!!!

Hi guys I need ur opinion for the following setup,whether Its suitable for a SPAD TRAINER plane of AUW of 800gm.

1.TowerPro Outrunner 2409-18 1000kv/180W
2.Turnigy 1300mAh 30C 3S  LiPo
3.Turnigy 25A ESC
4.HXT 900 servos
5.8x4E Propeller

Pls give ur suggestions friends..
« Last Edit: July 24, 2010, 10:59:20 PM by xxkrishxx » Logged
BalaKrishnan
Mechanical engineer..

Radio:Spektrum Dx6i | Futaba 6EXP | working on coro Avispad | HK450MT kit | Seagull Boomerang 40 | HK 250GT | Upcoming: Easy Star 2 |
 

Read
« Reply #1 on: July 24, 2010, 10:43:41 PM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !
Are you sure about the 2408-18 ?  I see 2408-21 and 2409-18. There are sometime significant differences in wattage on these motors for small changes in model numbers. 
Logged
Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #2 on: July 24, 2010, 10:47:48 PM »
xxkrishxx
Plane Lover
Forum Hero

*****

Reputation Power: 10 
xxkrishxx has no influence.
Offline Offline

City: Bangalore/Vellakovil
State: Tamil Nadu
RC Skills: Beginner
Posts: 834
Join Date: May, 2010

FLY HIGH...!!!
Oh sorry its 2409 only..
Logged
BalaKrishnan
Mechanical engineer..

Radio:Spektrum Dx6i | Futaba 6EXP | working on coro Avispad | HK450MT kit | Seagull Boomerang 40 | HK 250GT | Upcoming: Easy Star 2 |
 

Read
« Reply #3 on: July 24, 2010, 11:13:02 PM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !
There are two small variations or the 2409-18, but they are both quite close to each other in terms of wattage.  At about 180W, you can have a plane that is a trainer or one that does some aerobatics. 

Do not add weight (bigger batteries, etc) initially, you can do that after doing some initial testing with the smaller battery you mentioned.
« Last Edit: July 27, 2010, 01:58:31 PM by anwar » Logged
Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #4 on: July 26, 2010, 05:07:51 PM »
Ashta
Plane Lover
Forum Hero

*****

Reputation Power: 9 
Ashta has no influence.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Intermediate
Posts: 623
Join Date: May, 2009
If u have 800 grams AUW, u need a min 150W of power in order to fly. So when you put a 8x4 prop on your 2409-18, just check and ensure that it is drawing a min of 15Amps at 10V or more.
In any case for an 800grams AUW, i feel that it is a bit marginal. Also some of the lipos, when rated for 30C, they will take only half or less to that in practice.. be carefull. For ex the 1300/30C, may be comfortble up to say 18A continous.




Quote from: xxkrishxx on July 24, 2010, 10:01:54 PM
Hi guys I need ur opinion for the following setup,whether Its suitable for a SPAD TRAINER plane of AUW of 800gm.

1.TowerPro Outrunner 2409-18 1000kv/180W
2.Turnigy 1300mAh 30C 3S  LiPo
3.Turnigy 25A ESC
4.HXT 900 servos
5.8x4E Propeller

Pls give ur suggestions friends..
« Last Edit: July 26, 2010, 08:31:33 PM by anwar » Logged
You can't be first because you do not know!
 

Read
« Reply #5 on: July 26, 2010, 05:40:30 PM »
dinil
Plane Lover
Senior Member

***

Reputation Power: 3 
dinil has no influence.
Offline Offline

City: cochin
State: Kerala
RC Skills: Beginner
Posts: 212
Join Date: Feb, 2010
for 2409-18t towerpro heres the tested data
http://www.headsuprc.com/servlet/the-1416/2409-dsh-18T--Outrunner-Brushless/Detail



but knowing just the wattage can we find the thrust
for example if  i have  a 100W motor what will be the thrust
Logged
 

Read
« Reply #6 on: July 26, 2010, 06:13:02 PM »
xxkrishxx
Plane Lover
Forum Hero

*****

Reputation Power: 10 
xxkrishxx has no influence.
Offline Offline

City: Bangalore/Vellakovil
State: Tamil Nadu
RC Skills: Beginner
Posts: 834
Join Date: May, 2010

FLY HIGH...!!!
Whether  1600mAh 2S1P 30C lipo n 10x5E propeller will be a good one?
Logged
BalaKrishnan
Mechanical engineer..

Radio:Spektrum Dx6i | Futaba 6EXP | working on coro Avispad | HK450MT kit | Seagull Boomerang 40 | HK 250GT | Upcoming: Easy Star 2 |
 

Read
« Reply #7 on: July 27, 2010, 07:37:20 AM »
dileepbalan
Plane Lover
Senior Member

***

Reputation Power: 3 
dileepbalan has no influence.
Offline Offline

City: Coimbatore / Vaikom, Kottayam, Kerala
State: Kerala
RC Skills: Beginner
Posts: 178
Join Date: May, 2010
Hi Krish,

Could you please post the plan you are going follow? are you planning to design with coro?

Regards,
Dileep
Logged
Spektrum DX6i | AXN Floater-Jet
 

Read
« Reply #8 on: July 27, 2010, 02:05:19 PM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !
Quote from: dinil on July 26, 2010, 05:40:30 PM
but knowing just the wattage can we find the thrust
for example if  i have  a 100W motor what will be the thrust

Many variables go into thrust calculation, and there are programs to do that, like in this thread below.

http://www.rcindia.org/electric-planes/estimate-electric-motor-and-prop-combo-calculate-thrust-watts-flight-time-etc/

Ultimately it is about using a wattmeter to be sure.
Logged
Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #9 on: July 28, 2010, 11:34:36 AM »
Ashta
Plane Lover
Forum Hero

*****

Reputation Power: 9 
Ashta has no influence.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Intermediate
Posts: 623
Join Date: May, 2009
as you can see an 8X4 prop can give you apprx 600 grams thrust. so it may be marginal for an 800 grams auw.
a rough calculation from watts to thrust ( very rough) is X4. ie 100 watts = 400 grams. for med KV motors like 1000KV to 1500KV
 
Quote from: dinil on July 26, 2010, 05:40:30 PM
for 2409-18t towerpro heres the tested data
http://www.headsuprc.com/servlet/the-1416/2409-dsh-18T--Outrunner-Brushless/Detail

but knowing just the wattage can we find the thrust
for example if  i have  a 100W motor what will be the thrust
« Last Edit: July 28, 2010, 11:40:17 AM by anwar » Logged
You can't be first because you do not know!
 

Read
« Reply #10 on: July 28, 2010, 11:36:14 AM »
Ashta
Plane Lover
Forum Hero

*****

Reputation Power: 9 
Ashta has no influence.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Intermediate
Posts: 623
Join Date: May, 2009
completely agree with Anwar esp since these chinese motors come with large variations.
Logged
You can't be first because you do not know!
 

Pages: [1]   Go Up
RC India  RC Equipments  Electric Power  Topic: Electrical Setup
 « previous next »
Jump to:  

Related Topics
Subject Started by Replies Views Last post
Electrical power system
RC General Topics 		PankajC 2 5249 Last post September 01, 2009, 02:15:29 PM
by allthatido
some help with simulator setup
Radios and Receivers 		merin_83 10 6733 Last post May 02, 2012, 01:22:48 AM
by merin_83
Wanted full electrical setup
Wanted 		pylonplane 9 4070 Last post January 16, 2013, 07:20:04 PM
by pylonplane
Wanted liquid electrical tape
Wanted 		murcielago 3 3663 Last post March 21, 2013, 12:42:09 PM
by theleabres
FIREBIRD-403 Electrical Airplane RTF
For Sale - Completed 		dhruvafreak 10 8065 Last post July 12, 2013, 02:52:25 PM
by dhruvafreak
Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Simple Audio Video Embedder 		Realized by Systalent | XHTML | CSS