Futaba BLS571SVOS in the field - precision and pace
Servos define how an RC car feels on throttle and steering, and the Futaba BLS571SVOS brings tight, repeatable motion in a compact package. This low profile unit, tuned by O.S, was developed for drivers who need crisp response without extra bulk, blending dependable durability with race-ready behaviour.
Track-focused design and performance highlights
The Futaba BLS571SVOS is engineered to perform where timing matters. At 41 grams it stays light, while a 0.10 second/60 degree speed and 9.4 kg-cm torque at 6.0 volts provide the quick reactions and holding power needed for on-road sprinting and nimble buggies. These specs make it suitable for setups that demand immediate control inputs.
O.S tuning refines internal parameters to deliver smoother, more efficient motion under load. That adjustment improves consistency lap after lap and helps reduce wasted motion, which racers will appreciate when tuning steering feel.
Practical setup tips for better handling
To get the most from the Futaba BLS571SVOS pair it with a responsive transmitter and a high-quality receiver to minimise lag. Check servo saver and horn fitment, and use a stable 6.0 volt supply for rated torque. Novices upgrading from stock servos will notice crisper turn-in and improved centring.
Why experienced builders pick Futaba
Compared with other high performance servos in its class, the Futaba BLS571SVOS stands out for consistent speed and torque under race conditions. The O.S tuning and proven reliability make it a solid upgrade path for club racers and serious weekend drivers who expect repeatable control without frequent adjustments.
Specifications
- Weight: 41g
- Speed: 0.10 sec/60°
- Torque: 9.4 kg-cm @ 6.0v
- Tuning: O.S Tuned Speed T1
If you want a compact, fast servo that holds under load, the Futaba BLS571SVOS is a practical choice for racers and serious hobbyists looking to tighten handling and improve lap times.
