Split-S in an FPV Simulator: Half Roll, Half Loop, Same Direction

What is a split-S?

A split-S reverses your flight direction by rolling to inverted and then pulling through the bottom half of a loop. You end up flying back along roughly the same line, lower than you started, at a similar or higher speed.

It is one of the first moves worth learning because it teaches the single most useful habit in acro flying: inverted means the pitch stick reverses its effect on altitude. Everything harder depends on that instinct.

What do you need before trying it?

• Enough altitude that a mistake leaves you room to recover — start high, not low.
• The ability to hold a hover and complete a deliberate 180° turn. If a turn still surprises you, the split-S will too.
• A simulator, not a real quad. The point of the first twenty attempts is to remove the flinch.

Read Acro mode explained if the phrase “inverted” still feels abstract, and confirm your rates before drilling. A very high rate makes the roll finish before you are ready; the rates guide explains why the same numbers feel different between simulators.

How do you fly it?

1. Fly straight and level with a little altitude margin, and pick a reference point ahead of you.
2. Roll to inverted — half roll, no more. Keep the throttle steady; you are not doing a flip.
3. Hold inverted briefly. This pause is the part everyone skips.
4. Pull back on pitch to bring the nose down and around. Inverted, this pulls you toward the ground on the far side of the loop.
5. Complete the half loop, roll upright if your exit is not already level, and settle the throttle.

The move should feel like one continuous arc with a moment of hesitation in the middle. If it feels like two separate tricks, you are rolling too far or pulling too early.

What are the three common mistakes?

Rolling past inverted. A split-S is a half roll. Going further turns it into a messy flip and you lose the reference horizon.

Diving instead of looping. Pulling too early and too little produces a dive toward the ground rather than a loop through it. The exit should be a curve, not a plunge.

Entering too low. The move costs altitude by definition. Pilots who start at ten metres discover the cost at two.

How do you know it is working?

Fly the same entry five times. A clean split-S ends with the quad level, on the original line, with a predictable altitude loss. If the exit altitude varies by more than a couple of metres, the entry speed or the inverted pause is inconsistent — fix that before adding a gate or a target.

Once it is repeatable, chain it: split-S into a power loop is a useful way to find out whether the exit is actually stable rather than merely survivable. The tricks overview lists the other moves in this set, and the simulator directory helps you pick a scene with enough vertical space to practise in.