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F-TEK 31AP Fixed Wing Flight Stabilization Controller (w/Self-Leveling)

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F-TEK 31AP Fixed Wing Flight Stabilization Controller (w/Self-Leveling)

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The F-TEK 31AP is an inertial attitude measurement instrument used for automated stabilization of fixed wing model aircraft and simple three axis camera gimbals It features an integrated three-axis gyro and three-axis accelerometer which controls the aircraft movement in three-dimensional space. This flight controller is an advanced all-in-one solution for ultra stable fixed wing aircraft flight! It supports standard fixed wing, V-tail and Delta (elevon) wing configurations making it compatible with just about any model.

The F-TEK 31AP also incorporates an accurate barometric pressure sensor. At start up, the take-off air pressure is measured, providing the autopilot with an accurate relative height data.
This flight controller supports the use of a GPS module (included) which enables the autopilot to calculate the flight course and exact location of the aircraft. This allows for precise GPS positioning as well as "return to home" functionality. If the FY31AP is not connected to the GPS module, the autonomous flight system cannot be engaged and it will function purely as a flight stabilizer.

• Easy installation
• 3-axis accelerometer and 3-axis gyro stabilization
• Self-leveling flight stabilization
• Integrated barometric pressure sensor
• GPS module included
• Easy access gain adjustments for flight tuning

Input voltage: 4.0 ~ 6.0V
Current draw: 50mA (5V)
Size: 47x27x20mm
Weight (excluding wires): 25g
Temperature range: -25 ° C ~ +70 ° C
Maximum rate of rotation: ≤ 2000 ° /s

F-TEK 31AP Flight Controller
GPS module
USB connection cable
All required wire leads and mounting accessories

Manufactured under license for HobbyKing by Feiyu Tech. 100% compatible with Feiyu Tech software/firmware and supported by the HobbyKing global warranty network. Visit for the latest software and firmware.

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Alfredo | Verified Buyer

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Customer Rated

Mar 20, 2014

MInes is useless, was able to use GCS in windows xp but cant make it work in W8, now idont have xp anymore so cmplete sistem is useless without GCS.
GCS is not able to work with google earth as did in xp, Spent many many many hourds studying forums and no solution emerges, I wouldnt labell this system as " easy" as many do.So warning no way to use GCS in W8 tho this day, after too much time spent in studying the whole thing.

ptipierre | Verified Buyer

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Customer Rated

Jan 07, 2013

Good product, do what it's designed for, good upgrade for every FPV plateform but you MUST install it away from your Vtx and antenna especially if you use strong vtx like 1500mW

If it's to close the unit will ask for a Gyro init ( red LED continous flash) due to the interference

jbx907 | Verified Buyer

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Certified Buyer Rated

Dec 29, 2012

I purchased this for a future fpv project, i flashed it with version 2.1, tested this on my sky surfer 1400mm, with full gain and still is, not even one wiggle on stability mode, aside from my un neutraled pitch and needs no dualrates whatso ever. gps locks on pretty fast due to huge size, tested auto circle and rth flight modes. really cool product and hk sell it cheap. im still trying to get the neutral pitch of my plane and hope to do some video of its flights!

Manolo_B | Verified Buyer

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Customer Rated

Sep 22, 2012

Same as Feiyu FY-31ap, but this with firmware V. 2.0 ? Most actual firmware for FY31ap at FeiyuTech webpage is V. 1.20.

The plastic case lacks of manual and logos like the "original" has.

Pending flight tests.

Aleksander | Verified Buyer

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Customer Rated

Sep 19, 2012

F-TEK 31AP Fixed Wing Flight Stabilization Controller the super stable all very !!!!!!!!!!!!!!!!!!!!!

Chris | Verified Buyer

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Customer Rated

Sep 11, 2012

My review is based on the premise that this is identical to the FY-31AP (just rebadged/rebranded).

Based on personal experience, a RTH (Return to home) function is by far one of the safest elements to FPV flying. This unit is extremely easy to use and configure, and even easier to install.

effortless coupling with the HornetOSD provides a visual cue as to what mode you're in.

stability works perfectly, but be sure to straighten all your surfaces as best you can without trims as this unit will fight your tx inputs. in other words, if you feel you need some left roll trim, this unit will constantly counter that input and your craft will roll right.

Customer files
FY-31AP Installation&Operation Manual Download [659]
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