Aerobatics! Lesson 10: Split-S. Hours Flown: 78.0
I feel bad for the Split-S. This maneuver has caused a lot of death and destruction, but for all the wrong reasons. Basically a ‘reversed Immelmann’, it has most often been inadvertently executed by non-aerobatics pilots that suddenly encounter an unexpected upset at low altitude, and causing them to impact the ground at high speeds… with disastrous results.
The Split-S should only ever be attempted with definitive intent, and with plenty of altitude. It’s not a particularly difficult maneuver, but the right essentials must be taken into account:
- Enter slow! Decathlon entry speed is 80MPH.
- Throttle back as you reach inverted, or the airspeed will red-line on pullout.
When done right, it’s beautiful and a classy way to reverse direction.
So, next time you happen to find yourself unexpectedly turned over, remember… Don’t split, just roll!
Above: Called “Renversement” in French, the Split-S has been useful for Military pilots since World War I. Re-illustration from ancient documents.