RC Su-27: Twin EDF Flanker Models, Sizes and Flying Tips
The Sukhoi Su-27 Flanker is a popular RC jet subject because of its long, twin-engine shape and aerobatic reputation. The main ready-made models are twin ducted-fan (EDF) foam jets: the FlyFans Su-27 with twin 64 mm 12-blade fans (930 mm span, 1,380 mm long, about 2.3 kg, 6S), and the larger FMS Su-27 with twin 70 mm fans (1,110 mm span, 1,640 mm long, about 4.4 kg, 80 A ESCs). Smaller foam Su-27s with props exist too, but the twin EDFs look and sound the part.
By Kyle HilsonUpdated: October 20263 min read
Models compared
| FlyFans twin 64 mm | FMS twin 70 mm | |
|---|---|---|
| Span | 930 mm | 1,110 mm |
| Length | 1,380 mm | 1,640 mm |
| Flying weight | about 2.3 kg | about 4.4 kg |
| Fans / motors | 2× 64 mm 12-blade, 2840 2300KV | 2× 70 mm 12-blade, 3060 1900KV |
| Power | 6S | High-voltage, twin 80 A ESCs |
| Versions | PNP and kit | PNP (also J-11 scheme) |
From maker and dealer listings, checked October 2026. Colour schemes include Russian Knights, camouflage and Ukrainian digital.
What it’s like to fly
A twin-EDF Su-27 is fast, needs a runway or very smooth grass, and lands quicker than a propeller plane. The long fuselage and large wing area give it good slow-speed manners for a jet, and its aerobatic looks invite rolls, loops and high-alpha passes. Two fans add power but also complexity: both must run evenly, and the battery has to supply high current. Flights are typically short, a few minutes per pack, so set a timer. EDF basics are in what an EDF RC plane is.
Who it suits
- Pilots who have flown a single-EDF jet and are confident with fast landings.
- Clubs with a paved or smooth runway.
- Scale jet fans who like the Flanker’s shape.
Not suitable as a first jet. Single-fan trainers are covered in best EDF jets.
Setup tips
- Check both fans spin in the right direction and match in speed.
- Balance at the CG with the flight battery; jets are sensitive to CG.
- Use expo and moderate rates; full throws are for experienced pilots.
- Check the retracts, steering and brakes (if fitted) on the ground.
- Set a conservative timer and land with reserve.
- Choose batteries with sufficient discharge rating; twin fans draw a lot.
Care
Inspect fan blades for nicks after every session, since debris sucked into the intakes damages them and causes vibration. Keep intakes clear, check motor mounts and the wiring to both ESCs, and make sure the battery hatch is secure. Store the plane where the long nose and fins can’t be knocked.
Alternatives
If the Su-27 is too large or costly, smaller single-fan jets or prop-driven foam fighters let you practise jet-style flying. If you want something bigger, large scale composite jets with turbines exist, but they’re club-level projects with turbine training and insurance requirements.
Buying checklist
- A runway to fly from.
- Batteries and charger for 6S or higher.
- Spare fans, retract parts and nose gear.
- Transport space for a 1.4–1.6 m fuselage.
The real Su-27
The full-size Su-27 is a Soviet-designed twin-engine fighter that first flew in the late 1970s, famous for its manoeuvrability at airshows. That aerobatic reputation is part of why modellers like to fly it.
FAQ
What is the best RC Su-27?
Twin-EDF foam models from FlyFans or FMS are the common choices.
How fast is an RC Su-27?
Fast for foam jets; speed depends on fans and batteries.
Is an RC Su-27 good for beginners?
No; fly a trainer and a single-fan jet first.
What battery does it need?
The 64 mm version uses 6S; check the manual for each model.
More on this topic: the complete RC Airplanes guide covers the basics behind this article.
About 20 years in RC. Mostly boats in the NAVIGA Mini Eco Expert class, with many self-made parts; also a King Motor Baja 5B, a home-built electric plane, home-built nitro planes he has flown, and an RC helicopter. More about SwellRC
