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AIM 

6/17/21 

TBL 10

1

Helicopter Use of Standard Instrument Approach Procedures 

Procedure 

Helicopter Visibility 

Minima 

Helicopter MDA/DA 

Maximum Speed Limitations 

Conventional 
(non

Copter) 

The greater of: one half 
the Category A visibility 
minima, 

1

/

4

 statute mile 

visibility, or 1200 RVR 

As published for 
Category A 

The helicopter may initiate the final 
approach segment at speeds up to 
the upper limit of the highest 
Approach Category authorized by 
the procedure, but must be slowed 
to no more than 90 KIAS at the 
MAP in order to apply the visibility 
reduction. 

Copter Procedure 

As published 

As published 

90 KIAS when on a published 
route/track. 

GPS Copter Procedure 

As published 

As published 

90 KIAS when on a published route 
or track, EXCEPT 70 KIAS when 
on the final approach or missed 
approach segment and, if annotated, 
in holding. Military procedures are 
limited to 90 KIAS for all segments. 

NOTE

 

Several factors affect the ability of the pilot to acquire and 
maintain the visual references specified in 14 CFR 
Section 91.175(c), even in cases where the flight visibility 
may be at the minimum derived by TBL 10

1

1. These 

factors include, but are not limited to: 

1. 

Cockpit cutoff angle (the angle at which the cockpit or 

other airframe structure limits downward visibility below 
the horizon). 

2. 

Combinations of high MDA/DH and low visibility 

minimum, such as a conventional nonprecision approach 
with a reduced helicopter visibility minima (per 14 CFR 
Section 97.3). 

3. 

Type, configuration, and intensity of approach and 

runway lighting systems. 

4. 

Type of obscuring phenomenon and/or windshield 

contamination. 

10

1

Helicopter IFR Operations