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Durafly EFXtra Racer (PNF) Red Edition High Performance Sports Model 975mm

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Durafly EFXtra Racer (PNF) Red Edition High Performance Sports Model 975mm


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If you’re craving speed, the EFXtra is where it’s at, with out-of-the-box performance in excess of 100mph+. Durafly retained the spirit of the EFX Racer and focused on adding extra performance, like the incredible roll and climb rates.

There are plenty of high-performance features and new additions over the EFX Racer. The Durafly EFXtra boasts a new clipped wing (975 millimeters) to give extreme roll rates. An upgraded 3536-1780kv brushless motor (using ultra-high-speed Japanese bearings) with a 60A Aerostar ESC has been added and optimized, for up to 4S performance. Higher speed, higher torque digital 9g servos (metal geared on the ailerons) together with ball link connectors provide true precision control of all surfaces no matter what speed you are traveling. We’ve even included FPV mount in the box for the adrenaline junkies that love to live life on the edge.

Durafly heard your calls and redesigned the airframe to fit larger capacity LiPo battery packs resulting in longer flight times. The aircraft is stronger than ever with both glass and carbon fiber reinforcements throughout whilst keeping the airframe as light as possible. Super Compressed EPO foam and polished finish to deliver the ultimate in performance with the sleekest of looks. How fast you go depends on the propeller and battery size. The plane comes with two propellers, for the standard setup of 3S an 8x6 prop or for the performance setup of a 4S a 7x6.5 prop. 

Complimenting the amazing speeds of the EFXtra is its stability at low speed making hand launching and landing a dream. The EFXtra is also an agile slope soarer, just remove the propeller and spinner and add, the provided, slope soaring nose cone. Once again, the airframe provides excellent stability at all speeds to make it a breeze to fly in all conditions. Imagine slope soaring with FPV.

The EFXtra clips and screws together in minutes allowing you to get in the air as soon as possible. Just install your receiver and battery and you’re in the air.

• 100mph+ performance right out of the box (on 4S set-up).
• Specially designed 3536-1780kv brushless motor with high-speed Japanese bearings.
• Powerful and fast 9g digital servos.
• 3S or 4S as standard 
• Supplied with 8x6 propeller for 3S and 7x6.5 propeller for 4S set-ups.
• Super Compressed EPO foam construction.
• Larger internal capacity
• Glass and carbon fiber reinforcement throughout the airframe.
• Full wing length spar
• No glue assembly. Just clicks and screws together in minutes.
• Ball link control system.
• FPV Mount
• Slope soaring nose cone
• Full complement of spare parts available.

Wingspan: 975mm (38.4”)
Length: 760mm (29.9”)
Flying Weight: ~ 920g (32.45oz)
Wing Loading: 61g/
ESC: 60A Aerostar
Motor: 3536-1780kv Brushless
Battery: 1800~2400mAh 4S 65C or 2200~2600mAh 3S 65C (not supplied)
Prop: 7x6.5 for 4S or 8x6 for 3S (supplied)
Controls: 4 Channel (Throttle, Ailerons, Elevator, Rudder)
Spinner: Custom made aluminum
FPV Racing Canopy: Included
Slope nose cone: Included

1 x 1800~2400mAh 4S 65C or 2200~2600mAh 3S 65C LiPo Battery
1 X 4 Channel Radio TX/RX
1 x FPV Setup (optional)


  • Wingspan(mm) 975.00
  • Durafly EFXtra Product Video
  • EFXtra Maiden Flight
  • Awesome FPV machine
  • Beginner pilot fly EFXtra with stabilization
  • Turnigy efxtra racer FPV by elpet
  • island flight with EFXtra
  • EFXtra Island Challenge
  • Erstflug EFXtra, gleich mit Propellerbruch, Bremste nicht eingeschaltet
  • Hayden Green 6cell
  • HobbyKing Review and Flight Demos of the Durafly PNF EFX Racer, and EFXTRA Racer.
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Donald | Verified Buyer

  • Overall
  • Quality
  • Value

Parts Quality

May 19, 2023

Plane flys fine.
Used just a 3 cell battery to get used to plane and flights less than 3 minutes each.
Batteries not hot.

Laurent | Verified Buyer

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Super Racer

Jun 12, 2022

Perfect small racer, just change propeller for 6.5x7.5, neutral speed 200 km/h, best 242 km/h with some wind to help and little down slope ;o). Good launch carracteritics, and nice landing with up ailerons to slow down with some down elevator mixe. Very pleasant to fly, straight on rails even during heavy turns. 2.5 minutes full throttle and 2200 mA 4s bat 25% left .

Lapassade | Verified Buyer

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nice racer

May 05, 2022

I'm very happy with this model, I fly it only with 4S. For a racer hand launch is not so critical, set a good trust 3/4 throttle with 4S, launch at 30° to 45° and it's ok. I prefer to hand launch myself to have a better filling of the trust. I put a GPS inside, made some test with different propelers. I get 222 km/h on a flat line with some wind help but not so much perhaps 15 km/h and an APC 6.5x7.5.
The plane is on a rail at any speed, as well as in turn. Landing speed is also ok with CG near 55mm

Pilot | Verified Buyer

  • Overall
  • Quality
  • Value

Flies on rails

Jan 15, 2022

This thing flies on rails, and it is very fast. The actual foam bits of the plane are very good quality, but the magnets on the motors seem to be prone to coming loose.

Racer | Verified Buyer

  • Overall
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Super Flugzeug

Nov 30, 2021

Toller Flieger

LikarD | Verified Buyer

  • Overall
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  • Value

fast plane

Nov 28, 2021

I like this plane very much, it is very fast and flies great. I fly it on 4S lipos.

PILOT | Verified Buyer

  • Overall
  • Quality
  • Value


Nov 25, 2021

Very fast on 4S . Ordered a second one in case of crash :)

Ronald G | Verified Buyer

  • Overall
  • Quality
  • Value

Not worth the money, don’t buy.

Oct 30, 2021

Watched the video and read all the literature on this plane, lots of info from batteries to slope flying and thought it looked like a cool plane to get, boy was I wrong. Managed to get it in the air and all was fine, until I came in to land on its belly, it took nearly 60 feet before it stopped, which I was half expecting but what I wasn’t expecting was how much dirt and debri had compacted into the motor, locking it up solid, so took it home and disassembled it to remove all the dirt. 2 hours later it was back together and flying again, landed and the same thing happened again. Called H/K and got nowhere, why wasn’t it mentioned in the literature, then I wouldn’t have purchased it, it shows it landing on grass but no mention of not being any good on loose surfaces, I live in the high desert so grassy fields are a rarity and so is customer service at H/K, needless to say that’s the last plane I buy from them.

Allans | Verified Buyer

  • Overall
  • Quality
  • Value

Unstable - cannot launch

Oct 28, 2021

Bought this plane thinking it would be a great model to use at home since I live in the country and have lots of empty field from my backyard. The plane took a month to get. Got it all ready to fly, had a 3S 2200 in there. The package came with no instruction or manual. Managed to get the plane together well. Cannot hand launch it. The first try the plane left roll really quickly and crashed 15 feet in front of me. Broke the propeller. Changed the propeller and 10 min later hand launch it again. This time I gave it more throttle and it sort of took off….I thought I had it this time and then it started to act erratically doing roll on its own …. The plane was uncontrollable…. And then it pitched nose down hard and crashed again. This time the wings broke, the tail broke and the prop broke again. Cannot fly. I have been flying plane and helicopter for more than 10 years, never came across such an unstable platform. I do not recommend this product. I will nonetheless fix it and keep a tally on how much money I will need to spend to get this thing to fly. A pet project of mine… until I give up. Really dissatisfied.

Doc | Verified Buyer

  • Overall
  • Quality
  • Value

Economical adrenaline pump

Oct 14, 2021

This plane will fly well at any speed. Set the CG at neutral, launch at 30 degrees up angle with 3/4 throttle to cut down on torque roll to left. The neutral CG will allow slow nose high landings. For the faint of heart, get the Motion RC Havok. It is easier to launch but otherwise equal.

Customer files
Manual Download [2]
eeprom file Download [32]
Reciever placement Download [759]
Perparing_for_Race_Bavaria_01.JPG Download [5]
EFXTRA_after_the_race_01.jpg Download [3]
EFXTRA_after_the_race_02.jpg Download [357]
EFXTRA_ready_to_take_off_01.jpg Download [1]
EFXTRA_ready_to_take_off_02.jpg Download [951]
20190927_165654.jpg Download [960]
ESC_EFXracer.jpg Download [1]
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