F3825-26—Standard Specification for Operating Limitations, Markings, Placards, and Warnings for Light Sport Aircraft
| Standard Paragraph Number | Description Summary | Status | Compliance Information |
|---|---|---|---|
4.1 |
Aircraft shall have required markings and placards, including those needed for unusual characteristics. |
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4.2 |
Non-primary flight controls shall have markings identifying their functions. |
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4.3 |
Emergency-related controls shall have exterior markings identifying their functions. |
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4.4 |
Required markings and placards shall be conspicuous, resistant to damage or obscuring, and generally permanent. |
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4.5 |
Vibrations shall not compromise required markings or placards. |
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4.6 |
Electronic markings and placards may be used if they remain functional after primary power loss. |
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4.7 |
Night-operation placards and labels must be visible under provided illumination. |
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4.8 |
Placard measurement units shall match corresponding equipment. |
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4.9 |
Required placard and instrument marking information shall appear in the Pilot’s Operating Handbook. |
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4.10 |
Marking and placard language may be localized. |
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| Standard Paragraph Number | Description Summary | Status | Compliance Information |
|---|---|---|---|
5.1 |
Instrument Markings: |
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5.1.1 |
Instrument cover markings shall remain aligned with the instrument face. |
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5.1.2 |
Markings shall be clearly visible to the pilot. |
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5.1.3 |
Specified colors should indicate operating conditions; consistent flashing patterns may be substituted when necessary. |
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5.1.3.1 |
White or Green—Normal or safe operating ranges. |
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5.1.3.2 |
Yellow or Amber—Caution conditions. |
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5.1.3.3 |
Red—Warning conditions or limits. |
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5.1.4 |
Rotating propulsors shall have conspicuous daylight markings. |
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| Standard Paragraph Number | Description Summary | Status | Compliance Information |
|---|---|---|---|
6.1 |
All Light Sport Category Aircraft: |
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6.1.1 |
Aircraft shall have a pilot placard identifying operating restrictions and handbook limitations; temporary display may be used with pilot acknowledgment. |
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6.1.2 |
Aircraft shall have a passenger placard identifying Light Sport Category airworthiness status. |
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6.1.2.1 |
Passenger placard text shall comply with applicable Civil Aviation Authority requirements. |
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6.1.3 |
Baggage compartments shall display weight and critical load limits. |
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6.1.4 |
Reconfigurable weight-and-balance items shall display contents weight and critical load limits. |
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6.1.5 |
Hazardous items shall have placards identifying risks and avoidance actions. |
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6.1.6 |
Aerial work aircraft shall have placards required by Specification F3824. |
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6.2 |
Aircraft that Utilize Thrust-Borne Flight with Rotors: |
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6.2.1 |
Main Rotor(s) Low and High Speed Temporary Warnings: |
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6.2.1.1 |
Single-engine and certain multi-engine aircraft shall have rotor low-speed warning placards meeting 6.2.1.3 – 6.2.1.6. |
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6.2.1.2 |
Aircraft without automatic rotor high-speed governing shall have warning placards meeting 6.2.1.3 – 6.2.1.6. |
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6.2.1.3 |
Unsafe rotor-speed warnings shall be displayed in all flight conditions. |
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6.2.1.4 |
Rotor-speed warnings may be aerodynamic or device-generated. |
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6.2.1.5 |
Rotor-speed warnings shall be distinguishable and not solely visual. |
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6.2.1.6 |
Rotor-speed warning devices shall automatically deactivate and reset when conditions normalize. |
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6.3 |
Spinning: |
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6.3.1 |
Unapproved intentional spins: “INTENTIONAL SPINS PROHIBITED.” |
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6.4 |
Aircraft that Utilize Liquid Fuel: |
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6.4.1 |
Fuel placards: total capacity, usable fuel, and approved fuel types. |
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6.5 |
Emergency parachute-equipped aircraft: additional placarding requirements in Specification F2316. |
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| Standard Paragraph Number | Description Summary | Status | Compliance Information |
|---|---|---|---|
7.1 |
Aircraft must have an applicable operating limitations placard. |
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7.2 |
Aircraft not complying with F3768 are limited to VMC operations. |
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7.3 |
IMC operations are permitted with F3768 compliance. |
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7.3.1 |
See F3768 for additional IMC marking and placarding requirements. |
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7.4 |
Sling load operations are not permitted. |
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| Standard Paragraph Number | Description Summary | Status | Compliance Information |
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8.1 |
Wing-borne aircraft shall display operating maneuvering speed, VO. |
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8.1.1 |
VO should protect against abrupt control inputs and be determined per 8.1.1.1 – 8.1.1.3. |
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8.1.1.1 |
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8.1.1.2 |
The VA used in design. |
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8.1.1.3 |
A lower value meeting the stated objective. |
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1. Annex (Mandatory Information)
| Standard Paragraph Number | Description Summary | Status | Compliance Information |
|---|---|---|---|
A1.1 |
Airspeed indicators shall show safe operating ranges, which may vary with aircraft configuration. |
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A1.2 |
Airspeed indicators shall display applicable markings per A1.2.1 – A1.2.5 when actionable. |
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A1.2.1 |
Green range: minimum safe speed to VC; altitude-dependent limits must be indicated. |
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A1.2.2 |
VNE red line; altitude-dependent limits must be indicated. |
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A1.2.3 |
Aircraft with structural speed limits below VNE: |
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A1.2.3.1 |
Yellow caution range: upper green limit to VNE. |
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A1.2.4 |
Aircraft with non-automatic wing flaps: |
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A1.2.4.1 |
White flap operating range: VS0 to VFE. |
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A1.2.5 |
Aircraft with alternate safe speeds for engine-out operation: |
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A1.2.5.1 |
Include applicable engine-out airspeed markings, such as VYSE and VMC. |
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