Is It Too Windy to Fly an RC Plane?

Andres Soto · RC Fly Base founder and RC pilot

There isn't one wind speed where an RC plane suddenly becomes impossible to fly. The better question is whether the plane can handle the wind, whether you can handle the conditions, and whether flying is still going to be fun.

For me, 20 mph is about the point where I stop considering it a normal flying day. I've flown RC planes in stronger winds, but that doesn't mean I think it's a good idea for a normal flying session. Gusts, wind direction, the aircraft you're flying, and your own experience all make a difference.

How windy is too windy for an RC plane?

There isn't a universal maximum wind speed for RC planes.

A heavy, powerful plane may handle wind that would completely overwhelm a small foam trainer. An experienced pilot may also be comfortable in conditions that a newer pilot shouldn't attempt.

For me, 20+ mph is generally my cutoff for normal flying.

I can fly in those conditions. I've done it. But once the wind gets that strong, I'm usually spending more time fighting the conditions than enjoying the flight.

That's an important distinction:

A plane being capable of flying in strong wind doesn't necessarily mean it's a good day to fly.

My 3× rule of thumb for wind

One rule of thumb I've come up with for myself is that I want the plane's top speed to be roughly three times the wind speed.

The reasoning is pretty simple.

If the wind is 20 mph and the plane can fly 60 mph, you still have enough speed to make reasonable progress into the wind. If the plane can only fly 30 mph, a 20 mph headwind leaves you with very little ability to move forward.

At 60 mph, a 20 mph headwind still leaves roughly 40 mph of ground speed when flying directly into the wind. That's about two-thirds of the plane's top speed.

This isn't an exact calculation of whether a plane is safe to fly. A plane's actual airspeed, weight, wing loading, power, configuration and handling characteristics all matter.

It's just a quick way for me to think about whether a plane has enough performance to deal with the conditions.

And even if the math says the plane can do it, that doesn't mean I want to.

A plane capable of 100 mph might theoretically have plenty of speed for a 25 mph wind. But I still don't want to spend my afternoon flying a plane in 25 mph wind.

At that point, I'm mostly flying a pattern and fighting the wind.

Gusts can be worse than steady wind

Wind speed isn't the only thing I look at.

Gusts matter a lot.

If I have a steady 20 mph wind, I can start to predict what the plane is going to do. I can compensate for it.

But if the wind is constantly changing from 15 mph to 25 mph and back again, the plane becomes much less predictable.

That's what makes gusty conditions difficult.

A 10 mph difference between sustained wind and gusts can make a big difference in how the plane behaves. You may make a correction for one condition and then suddenly get hit with something different.

I'd rather have a strong but relatively steady wind than a lower wind that is constantly changing.

Predictability matters.

Wind direction matters too

A 20 mph wind isn't necessarily the same problem in every direction.

If the wind is blowing directly down the runway, that's much easier to work with than a strong crosswind.

A crosswind can push the plane sideways and, during landing, can cause problems that you simply don't get with a straight headwind.

It can also make takeoff more difficult.

At one Model Aviation Day, I watched another pilot prepare to take off in strong wind. As the plane picked up speed, the wind caught one wing, tipped the plane, and flipped it over.

The plane broke apart before it even got into the air.

That's not a particularly fun way to crash.

When I'm dealing with strong wind, I'll also avoid unnecessary taxiing if I think the plane could get tipped over. I'll carry the plane to the takeoff position instead.

You don't need to prove that the plane can taxi.

You need to prove that it can take off.

The aircraft makes a huge difference

Not every RC plane handles wind the same way.

Generally, heavier aircraft handle wind better because they have more momentum and aren't pushed around as easily. But weight isn't the only factor.

Wing position and aircraft design matter too.

Trainers such as the AeroScout and Apprentice are high-wing aircraft, which makes them inherently more stable. That's one reason my AeroScout is still one of my go-to planes on windy days, even though I now have larger and heavier aircraft.

My 1.4m Twin Otter is another plane I'd rather take out on a windy day.

My Sportix is a different story. It has much more control authority, which is great in the wind—but that's a bit of a double-edged sword.

If you're a confident pilot, the Sportix can handle wind very well. But having a very responsive plane also means you're responsible for managing that responsiveness when the conditions are rough.

The UMX Turbo Timber handles wind surprisingly well for its size and speed. But its relatively low top speed puts a practical limit on how much wind I'd want to fly it in.

The Sport Cub is one I'd save for a calm day. It's light, relatively underpowered and not particularly fast, so there isn't much reason to take it out when it's windy.

My practical wind limits

These aren't manufacturer specifications or universal limits. They're simply the rough limits I'd use based on my own experience with these aircraft.

They're about the aircraft, the pilot, the wind, the gusts and the direction of the wind all being considered together.

What I look at when I get to the field

The forecast is only part of the picture.

When I get to the field, I look at the trees to see what the wind is actually doing. If there's a windsock, I'll use that too.

And if someone else is flying, I'll watch their plane.

That's probably one of the best real-world indicators you can get. Instead of trying to interpret a weather forecast, you can see exactly how an RC plane is behaving in the conditions you're about to fly in.

I don't necessarily taxi the plane around to test the conditions.

If it's windy enough that I'm concerned about the plane getting tipped over while taxiing, I'll just carry it to the takeoff position.

Once I'm in the air, I'll usually fly a few laps in an oval pattern. I can tell pretty quickly whether the wind is manageable or whether I'm going to spend the entire flight fighting it.

If I'm already thinking, "This isn't fun," that's usually a pretty good sign that I should land.

Frequently asked questions

Is 10 mph wind too much for an RC plane?

For many RC planes, 10 mph is very manageable. However, small and lightweight aircraft can still be affected significantly, especially if the wind is gusty.

Is 15 mph wind too much for an RC plane?

It depends heavily on the aircraft and pilot. Many larger or faster RC planes can handle 15 mph winds reasonably well. Smaller, slower aircraft may become difficult to control.

Can you fly an RC plane in 20 mph winds?

Yes, some RC planes and experienced pilots can safely fly in 20 mph winds. The aircraft's speed, weight, design and the wind direction all matter. Personally, 20 mph is around the point where I start questioning whether the flight is worth it.

Can you fly an RC plane in 25 mph winds?

Some aircraft can physically fly in 25 mph winds, but that doesn't mean it is a good idea. Strong wind makes takeoffs, landings, orientation and mistakes more difficult. For me, 25 mph is well beyond what I'd consider a normal flying day.

Are wind gusts worse than steady wind for RC planes?

They can be. Steady wind is more predictable, which makes it easier for a pilot to compensate. Large or frequent gusts can suddenly change how the aircraft behaves and make corrections more difficult.

What is the best RC plane for windy conditions?

Generally, heavier aircraft with adequate power tend to handle wind better than very light, slow aircraft. High-wing trainers can also be a good choice because of their stable handling characteristics. However, the best aircraft depends on the pilot and the specific conditions.

What wind speed should I avoid when flying an RC plane?

There isn't a single wind speed that applies to every aircraft. Start with your aircraft's capabilities and your own experience, then consider sustained wind, gusts and wind direction. When you're no longer confident or the flight stops being enjoyable, it's probably time to call it. For more on how I decide whether to fly at all, see when should you decide not to fly an RC plane?.

Check the weather before you head to the field

Wind is only one part of deciding whether it's a good day to fly, but it's one of the most important ones.

I built RC Fly Base partly around this idea: know when to fly, then keep track of what you actually flew.

You can check the weather for your flying locations, record your flights, and build a history of your flying over time.

The important thing is to consider the entire flight—not just whether the aircraft is technically capable of flying in the wind.

Sometimes the right answer isn't:

"How do I make my plane fly in this weather?"

It's:

"Maybe I'll go flying tomorrow."