SG Crawlers Forum
Search
 
 

Display results as :
 


Rechercher Advanced Search

SGCrawlers - Crawl & Trail videos
SGCrawlers - Bash Tour Drift videos
Who is online?
In total there are 3 users online :: 0 Registered, 0 Hidden and 3 Guests

None

[ View the whole list ]


Most users ever online was 57 on Fri 23 Sep 2016 - 12:58
Latest topics
» shop that sell crawler stuff
by ongbenghui Today at 12:08

» Traxxas Revo 3.3
by Maska Yesterday at 11:36

» Coldman28's 1/6 Willys Jeep
by boolean21 Tue 29 Nov 2016 - 8:31

» [Night Drifting] 01 Dec 2016 2030hrs - Buangkok Sports Park near Blk 986A - MSCP at Blk 984
by boolean21 Mon 28 Nov 2016 - 20:37

» Rp-05 Rc Car Review: $130 1/16 Erevo Clone (Gearbest)
by Rc Reviewer Thu 24 Nov 2016 - 6:24

» Can a newbee join in in.
by boolean21 Wed 23 Nov 2016 - 22:18

» [Scale Trail & Rally] Woodgrove Ave - Sunday 20 Nov 2016 0900hrs
by boolean21 Sat 19 Nov 2016 - 7:38

» [Night Drifting] 17 Nov 2016 2030hrs - Buangkok Sports Park near Blk 986A - MSCP at Blk 984
by boolean21 Wed 16 Nov 2016 - 22:55

» WTB trail truck.
by Crawlerss Wed 9 Nov 2016 - 22:29

» [VIDEO] Scale RC Trucks Offroad Adventures Toyota Hilux Land Rover Defender Jeep Wrangler RC4WD
by boolean21 Tue 8 Nov 2016 - 22:43

» SCX10 or SCX10 II
by dididaddy Tue 8 Nov 2016 - 14:55

» Wts Axial Yeti and Wraith Alloy Upagrade Parts
by barstardrider Sat 5 Nov 2016 - 11:14

» [Offroad Trails] RC 4x4 Trails at Tampines Quarry 06 Nov 2016 - 0900hrs
by boolean21 Sat 5 Nov 2016 - 9:10

» [Night Drifting] 03 Nov 2016 2030hrs - Buangkok Sports Park near Blk 986A - MSCP at Blk 984
by boolean21 Tue 1 Nov 2016 - 22:05

» JoMac Comando Mach 3 transmitter from 1982
by laneboysrc Sun 30 Oct 2016 - 13:23

» [Offroad Bashing and Rally] Offroad Bashing and Rally at Tampines Track 23 Oct 2016 - 0900hrs
by boolean21 Sat 22 Oct 2016 - 10:09

» Boolean21's StreetJam OTA-R31 RC Drift Car
by boolean21 Wed 19 Oct 2016 - 22:47

» [Night Drifting] 20 Oct 2016 2030hrs - Buangkok Sports Park near Blk 986A - MSCP at Blk 984
by boolean21 Tue 18 Oct 2016 - 23:48

» my lr3 shell - teck's Land Rover Discovery 3
by Fantom Mon 17 Oct 2016 - 23:26

» [Scale Trail] Woodgrove Ave - Sunday 16 Oct 2016 0900hrs
by boolean21 Sat 15 Oct 2016 - 9:42

December 2016
MonTueWedThuFriSatSun
   1234
567891011
12131415161718
19202122232425
262728293031 

Calendar Calendar

Affiliates
free forum

Free Domain Name
Google+

RC electronics Part 4 - Full metal scale Land Rover

View previous topic View next topic Go down

RC electronics Part 4 - Full metal scale Land Rover

Post by laneboysrc on Mon 4 Mar 2013 - 20:07

The LANE Boys residence currently hosts a very special scale truck for light installation: a custom built full metal Land Rover Series 2 SWB. A good opportunity to see how much energy is needed to run such a RC car.




The Landy weighs 5kg and measures 60 x 25 x 34cm (length x width x height). It runs on 2.2" wheels with RC4WD Rock Crusher H/T 2.2 tires. It is powered by a Kyosho G20 540-size brushed motor, using a gearbox from a battery powered electric drill. The gear reduction gives the car a top speed equal to a gentle walking pace. The power is regulated with the cheap China brushed ESC.

We ran the car in the local park. The Eagle Tree Systems eLogger was used to log battery voltage and current consumption. The car was running on a half-empty Zippy 5000mAh 2S LiPo battery.



First we tested the power consumption of the steering servo and the light installation. When suspending the vehicle in air interestingly the servo consumed much more power than when the vehicle rested on its wheels. The Towarpro (!) MG996R servo peaks at above 1.3A, which is more than the 1A that BEC is rated at.

Even with all lights on the power consumption does not rise significantly. With 14 LEDs lit the consumption is only about 260mA.



In the park we first checked the power consumption without load. When suspending the vehicle in the air it consumes about 4.2A. When run on a flat surface at full speed the power only increases slightly to 4.5A.



We then did some light crawling over a few roots. The current never exceeded 8A.



We then went to a more challenging crawling spot: a steep incline where the recent heavy rain exposed a lot of large roots. The Landy had quite some troubles climbing over the roots and up the short hill, but made it eventually after several trials.

Here we got a peak of 14A, the highest we measured during the whole run. But the current rarely got beyond 10A.



We then proceeded with causal driving in the park for another half an hour. The current consumption rarely exceeded 7A. The LiPo voltage gently dropped below 7V during the run. The voltage during load never dropped significantly due to the low current demand of the vehicle.

Conclusion
Even though this Landy is large and heavy, its power consumption is significantly lower than our humble Tamiya CC-01. This is explained by the large gear reduction of the Landy -- the CC-01 is a race car in comparison.
One can easily run such a large and slow scale truck with the smallest ESC you can find in your toolbox.

laneboysrc
Crawler

Posts : 865
Join date : 2012-05-21

View user profile http://laneboysrc.blogspot.com

Back to top Go down

Re: RC electronics Part 4 - Full metal scale Land Rover

Post by babyboy on Mon 4 Mar 2013 - 20:33

I need to send my landy to you.

This is like sending the car for Dyno tuning.


babyboy
Crawler

Posts : 707
Join date : 2011-09-28

View user profile

Back to top Go down

Re: RC electronics Part 4 - Full metal scale Land Rover

Post by wyetuck88 on Mon 4 Mar 2013 - 21:28

Hi warner, Its quite interesting to know that the Servo consume that much power, Are there anyway to increase my battery life? I need your help in tuning the ECU chip (ESC) Very Happy

wyetuck88
Crawler

Posts : 311
Join date : 2012-05-26

View user profile

Back to top Go down

Re: RC electronics Part 4 - Full metal scale Land Rover

Post by Sponsored content Today at 22:06


Sponsored content


Back to top Go down

View previous topic View next topic Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum