---
kind: "section"
citation: "14 C.F.R. § 25.1147"
title: "14"
number: "25.1147"
heading: "Mixture controls."
url: "https://uscodex.org/cfr/14/25.1147"
---

# §25.1147. Mixture controls.

- (a) If there are mixture controls, each engine must have a separate control. The controls must be grouped and arranged to allow—
  - (1) Separate control of each engine; and
  - (2) **Simultaneous control of all engines.**
- (b) Each intermediate position of the mixture controls that corresponds to a normal operating setting must be identifiable by feel and sight.
- (c) The mixture controls must be accessible to both pilots. However, if there is a separate flight engineer station with a control panel, the controls need be accessible only to the flight engineer.

## Notes

### Authority

Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701, 44702 and 44704; Pub. L. 115-254, 132 Stat 3281 (49 U.S.C. 44903 note).

### Source

Source: Docket No. 5066, 29 FR 18291, Dec. 24, 1964, unless otherwise noted.