Home' RTCA Documents for Review : DO_XYZ_SPR_SC213_WG_79_OC_FRAC Contents 2
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consists of a display element (a Head-Up Display (HUD) or an equivalent displays),
sensors that provide a real-time image of the forward external scene topography, conformal
and non-conformal symbology, and associated electronics, controls, and indications.
An EFVS is the means by which to provide the pilot/flight crew with Enhanced Flight
Visibility which is defined in 14 CFR §1.1 as the “average forward horizontal distance,
from the cockpit of an aircraft in flight, at which prominent topographical objects may be
clearly distinguished and identified by day or night by a pilot using an enhanced flight
Within this context, approach and landing in instrument flight conditions can be conducted
under 14 CFR §91.176(b), by use of an approved EFVS to 100 ft Height Above Touchdown
Zone Elevation (HAT). Minimum Aviation System Performance Standards (MASPS) for
EFVS equipage have been published as RTCA DO-315.
Further, MASPS for the use of EFVS during approach, landing, and roll-out down to 1000
ft Runway Visual Range (RVR) have been published as DO-315A (authorized under 14
CFR §91.176(a)) and the use of EFVS during approach, landing, and roll-out to a safe taxi
speed down to 300 ft RVR have been published as RTCA DO-341. Important Advisory
Circular (AC) materials for these operations are contained in AC 90-106A and AC 20-
In this document, the visibility minima for an EFVS-enabled takeoff operation are defined.
The baseline system equipage is a system that is certified and meets the RTCA DO-315A
MASPS for approach and landing down to 1000 ft RVR.
Takeoff is a visual maneuver and the use of EFVS, in this phase of flight, with the visual
advantage that it provides, creates an operational and safety benefit.
Takeoff begins at brake release on the runway to liftoff and climb to 35 ft. above ground
level, and from brake release through deceleration to a stop for a rejected takeoff. The Pilot-
Flying (PF) visually conducts the takeoff using the EFVS with the Pilot-Monitoring (PM),
providing speed call-outs, systems monitoring, and other assistance as per Standard
An EFVS is the means by which the takeoff operation can be safely conducted in natural
visibilities lower than authorized without the use of EFVS.
In this document, recommendations for EFVS takeoff minima are defined with various
associated aircraft equipage, operational and interoperability requirements, and airport
infrastructure. The visibility minima are defined in terms of natural visibility since, in the
event of a failure or failures, the PF uses a combination of the remaining functional
elements, other aircraft subsystems, and available out-the-window natural vision cues (e.g.,
lights and/or markings of the runway) to mitigate the failure effects and conduct a safe,
successful takeoff or rejected takeoff.
1. No lower than 1000 ft visibility and visible Runway Centerline Markings
(RCLMs) or HIRLs/Medium Intensity Runway edge Lights (MIRLs), if RCLMs
obscured. RVR reporting is not required. An electronic means to define runway
center or centerline may be used to augment this operation and is required in the
absence of visible RCLMs or HIRLs/MIRLs.
2. No lower than 500 ft visibility on a Type 1/E runway or equivalent/better, with at
least 2 Runway Visual Range (RVR) reports, High Intensity Runway edge Lights
(HIRLs); and an electronic definition of the runway centerline or center by means
of an XLS (Generic Landing System, described in following).
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