Flash Hobby Spaceman 40A 2-3S ESC with 3A 5V BEC – MB30040
£18.50 Inc. VAT
Flash Hobby’s Spaceman ESCs series are designed for fixed wing aircraft.
In stock|Next shipping: 16/03/2026
Flash Hobby’s Spaceman ESCs series are designed for fixed wing aircraft.
This 40A version is suitable for use with 2-3S input voltage. It features on board BEC providing 5V output up to 3A, which can be used to power servos. The ESC handily comes pre-soldered with XT60H connector and 3.5 female bullet connectors, allowing for a plug and play installation with XT60 batteries and motors fit with 3.5mm bullet plugs.
The ESC has a number of programmable items:
1. Brake Setting: Enabled / Disabled
2. Battery Type: LiPo / NiMH
3. Low Voltage Protection Mode (Cut-Off Mode): Soft Cut-Off (Gradually reduce the output power) / Cut-Off (Immediately stop the output power)
4. Low Voltage Protection Threshold (Cut-Off Threshold): Low / Medium / High. For lithium battery, the battery cell number is calculated automatically. Low / medium / high cutoff voltage for each cell is: 2.85V/3.15V/3.3V. For example: For a 3S Lipo, when “Medium” cutoff threshold is set, the cut-off voltage will be: 3.15*3=9.45V. For NiMH battery, low / medium / high cutoff voltages are 0%/50%/65% of the startup voltage (i.e. the initial voltage of battery pack), and 0% means the low voltage cut-off function is disabled. For example: For a 6 cells NiMH battery, fully charged voltage is 1.44*6=8.64V, when “Medium” cut-off threshold is set, the cut-off voltage will be: 8.64*50%=4.32V。
5. Startup Mode: Normal /Soft /Super-Soft (300ms / 1.5s / 3s). Normal mode is suitable for fixed-wing aircraft. Soft or Super-soft modes are suitable for helicopters. The initial acceleration of the Soft and Super-Soft modes are slower, it takes 1.5 second for Soft startup or 3 seconds for Super-Soft startup from initial throttle advance to full throttle. If the throttle is completely closed (throttle stick moved to bottom position) and opened again (throttle stick moved to top position) within 3 seconds after the first startup, the re-startup will be temporarily changed to normal mode to get rid of the chance of a crash caused by slow throttle response. This special design is suitable for aerobatic flight when quick throttle response is needed.
6. Timing: Low / Medium / High ( 3.75°/15°/26.25°). Usually, low timing is suitable for most motors. To get higher speed, High timing value can be chosen.
- Continuous current: 40A
- Burst current (10S): 55A
- BEC output: YES Switching Type – 3A 5V
- Input voltage: LiPo 2S-3S
- Wire gauge: 16AWG
- Refresh rate of the throttle signal: 50Hz to 432Hz
- Weight: 48g
- Dimension: 65x25x12mm
Questions and answers of the customers
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Here at Flying Tech we have a wide choice of electronic speed controllers (ESCs).
There are two main types of ESCs: 4-in-1 ESCs and single ESCs. A 4-in-1 ESC integrates four individual ESCs onto a single circuit board, each controlling a separate motor. A single ESC controls only one motor.
This 4-in-1 ESC is a more popular choice for racing quads, while single motor aircraft such as fixed wings would use a single ESC. Single ESCs are still used by some drone racers though, as after a crash or a burnt up ESC, they only have to replace one, not an entire 4-in-1 or stack which is a lot more costly. Single ESCs are also available which much greater current ratings (80amp +) so they are also used by power hungry multi-rotors, for example X-Class racing quads, professional camera flying “Cinelifters”.
When using individual ESCs, they typically need to be connected to a single power distribution board (PDB) or an “AIO flight controller” (a type of flight controller with integrated PDB) for power supply.
SHIPPING & DELIVERY
We are based in the UK and ship to most destinations worldwide.
We dispatch orders during the times shown on our Dispatch Schedule. Orders placed before the daily dispatch cutoff will ship the same day (subject to stock availability). Orders placed after the cutoff will ship on the next scheduled dispatch day.
A confirmation email is sent once your order has been packed. If you need to amend your order, please contact us as soon as possible — once shipped, we’re unable to make changes.
We work with trusted delivery partners including Royal Mail, DHL, UPS, Fedex and Parcelforce. If you have a delivery requirement or would like to arrange collection, please get in touch.
Next Dispatch: Today
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Shipping to the UK
- Order before the daily dispatch cutoff for same day dispatch.
- FREE delivery available on qualifying orders over £99 (under 1kg).
For small, low-value orders, Royal Mail First Class is our most economical option. Royal Mail Tracked 24 is the most popular choice, offering full tracking and flexible delivery options. For guaranteed next working day delivery, we recommend Royal Mail Special Delivery.
Royal Mail delivers to residential addresses Monday to Saturday, while courier services (including DHL) typically deliver Monday to Friday.
International Postage
- USA orders: Import duties and taxes are prepaid by us — no additional customs charges on delivery.
- Other destinations: Customs duties or import taxes may apply and are the responsibility of the recipient.
Smaller, lower-value orders may be sent via Airmail or tracked postal services. Economy road and express air courier options are available depending on destination. For faster delivery, we recommend express air courier services such as DHL Express, which typically deliver within 1–2 working days across Europe and a few working days for most other destinations.
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