Brakes¶

Toe Brakes¶

The toe brakes are hydraulic disc brakes, fed from the aircraft's single hydraulic system through a dedicated brake accumulator.

Note

Pedal force does not generate the pressure. Without pressure there is no braking, however hard you push.

The brake accumulator is fed from the main system, but isolated from it. In case of a failure of the hydraulic system, use the handpump to get the pressure to 1500 PSI before landing. That should be good for two to three applications of the brakes.

Parking brake¶

The parking brake works in two modes:

Simplified: just toggle the parking brake by whatever means.
Realistic: to set the parking brake, pull the handle while toe brakes are fully depressed, then release toe brakes; to release, depress toe brakes fully to unlatch the mechanism. (For convenience, pushing the handle works as well, but that's not realistic, man!)

Limitation: As I understand it, in the real Twotter, the parking brake is a latch that holds the toe brake cylinders in place. I couldn't figure out how to prime the hydraulic system when the aircraft is loading, so the flight would start with the parking brake latching unpressurized toe brakes. Unpressurized brakes are bad, mmmkay? So, under the hood, even realistic mode must still rely on the conventional parking brake system. This makes FSEconomy happy, too.

Chocks¶

Chocks are deployed by default when you spawn cold & dark, and can be removed using the EFB app. They are removed automatically once the hydraulic brake accumulator is pressurized and you want to start moving.

The wheel chocks were donated to the project by Bagolu. Thanks!

Known Issues¶

In Crosswind, the toe brakes can barely hold the aircraft during the 85% Ng run-up.

Reviewed 2026-08-05.