SR-71 Blackbird RC Planes: E-flite, Freewing and LX Models Compared
The SR-71 Blackbird, the Mach 3 reconnaissance jet with its long, sleek shape, is available as several twin-EDF foam RC models. E-flite’s version uses two 40 mm fans, spans 505 mm, is 955 mm long and weighs about 834 g, with AS3X and SAFE Select stabilisation. Freewing’s SR-71 uses twin 70 mm 12-blade fans with 2957 2210 kV motors and thrust-reversing ESCs, spanning 960 mm. LX’s twin 64 mm version spans 700 mm with retracts. All are fast jets for pilots with EDF experience.
By Kyle HilsonUpdated: October 20263 min read
Models compared
| Model | Fans | Span | Notes |
|---|---|---|---|
| E-flite SR-71 | Twin 40 mm | 505 mm | 955 mm long, about 834 g, AS3X + SAFE Select, BNF |
| Freewing SR-71 | Twin 70 mm | 960 mm | 2957 2210 kV motors, thrust reversers, gyro, PNP |
| LX SR-71 | Twin 64 mm | 700 mm | Retracts; kit, PNP and RTF versions |
From maker and dealer listings, checked October 2026.
What it’s like to fly
The Blackbird’s long fuselage and delta-like wing make it fast and stable in a straight line but slower to turn than conventional jets. Twin fans add thrust and sound, but both must work evenly, and EDF systems drain batteries quickly, so flights are short. Landings need speed and a long approach. Stabilisation on the E-flite version helps greatly. EDF fundamentals are in what is an EDF RC plane.
Who it suits
These models suit pilots who already fly a single-fan EDF jet confidently. The small E-flite model can fly from smaller fields with hand launches or short runways; the larger Freewing needs a smooth runway. Choosing a first jet is covered in best EDF jets.
Setup tips
- Balance precisely at the manual’s CG; long noses and tails make it sensitive.
- Check both fans run in the correct direction with equal thrust.
- Use the recommended battery and a conservative timer.
- Set stabilisation modes as described for your model.
- Test retracts and thrust reversers on the ground.
Care
- Inspect fans after every session.
- Keep intakes clear of grass and grit.
- Check the long fuselage joints for cracks.
- Transport carefully; the nose and fins are fragile.
The real SR-71
The Lockheed SR-71 flew from the 1960s to the late 1990s and remains the fastest air-breathing manned aircraft in service history, cruising above Mach 3 at very high altitude. Its black finish and unique shape make it one of the most recognisable aircraft ever built, which is why it’s such a popular model.
Display
Even when not flying, an RC Blackbird looks striking on a stand. Many owners keep the larger models for occasional calm-day flights and display them the rest of the time.
Which one to choose
The E-flite version is the easiest to own: small enough for a car seat, stabilised, and able to fly from smaller fields. The Freewing is the most impressive in the air, with big twin 70 mm fans and thrust reversers, but needs a proper runway and 6S-class batteries. The LX model sits between them. Choose based on your field, budget for batteries and how much setup you want to do.
Whichever you choose, practise approaches on a simulator first, since the Blackbird’s landing speed surprises many pilots.
FAQ
Is there an RC SR-71?
Yes: E-flite, Freewing and LX make twin-EDF versions.
How big is the E-flite SR-71?
505 mm span, 955 mm long, about 834 g.
Is it good for beginners?
No, it’s for pilots with EDF experience.
Does the Freewing version have thrust reversers?
Yes, via thrust-reversing ESCs.
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
