This video shows why the smaller rc car A959-B (1/18 Scale) is faster or quicker than the larger 144001 (1/14 Scale) .
We tested the maximum RPM of the brushed motors of these rc cars using 2S Lipo battery and found out that the smaller 540 motor of A959-B is faster than the bigger 550 motor of 144001.
NOTE: In comparing the expected top speed of these 2 rc cars there are still many factors to consider aside from the speed (RPM) of the motors but I did not mention them in the video due to the following reasons:
- A959-B gains slightly more speed due to less weight
- 144001 also gain more speed due to slightly larger tires
Therefore, the advantages / disadvantages of each car will compensate each other and will not give significant effect in the top speed.
*Below is a quick comparison of these factors in both cars:
a) Gearing = 27/42 on both rc cars
b) Weight = A959B is 186 grams lighter ( 694g v/s 880g )
c) Tire diameter= A959B is 10 mm smaller ( 60 mm v/s 70 mm )
d) Internal Gears = A959B(15/40) v/s 144001(12/30), so 144001 slightly faster
You can get here the DIGITAL TACHOMETER :
[ Ссылка ]
*** Smart Lipo Battery Tester-Balancer :
[ Ссылка ]
*** IMAX B6 Lipo Balanced Charger:
[ Ссылка ]
#test #wltoysa959 #wltoys144001
