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Flight Training Instruction - Cnatra - U.S. Navy

Flight Training Instruction - Cnatra - U.S. Navy

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CHAPTER FOUR T-6B PRIMARY INSTRUMENT NAVIGATION<br />

401. LEVEL-OFF<br />

General. Smoothly level-off at desired altitude with power set to attain or maintain desired<br />

airspeed.<br />

Description. Change of pitch to reduce vertical speed at a specific altitude combined with<br />

power adjustment to meet desired airspeed.<br />

Procedure. To level-off at airspeed below climb speed, lower the nose to level flight and reduce<br />

power below the setting required to maintain the lower airspeed. To level-off at a higher<br />

airspeed, leave the PCL at MAX or set power above the setting required to maintain the greater<br />

airspeed. Adjust power approaching target airspeed and trim. Use similar procedures for a<br />

level-off from a descent. One method is to use 10 percent of vertical speed (from VSI) as a lead<br />

point to begin level-off. For example, begin level-off 200’ below desired altitude when VSI<br />

indicates 2000 feet per minute (FPM). At the lead point, cut the pitch in half, and then continue<br />

pitch change to smoothly level-off. If intermediate level-offs are required, it is permissible to<br />

maintain climb airspeed or accelerate to the appropriate cruise speed for that altitude.<br />

IFR Departure methods: An instrument departure is a procedure used to ensure a safe climb<br />

out from an airport and to provide safe separation between aircraft. There are four common<br />

types of departures listed below.<br />

4-2 INAV DEPARTURE PROCEDURES<br />

NOTE<br />

The Trouble T: An Obstacle Departure Procedure (ODP) that has<br />

been developed solely for obstacle avoidance will be indicated<br />

with the symbol “T” on IAP charts (approach plates) and<br />

Departure Procedure (DP) charts [ODP or Standard Instrument<br />

Departure (SID) plates]. The user of these should refer to the front<br />

section of his approach plate for specific information pertaining to<br />

the obstacle, and climb out required. Refer to AIM 5-2-8 for more<br />

information. OPNAV 3710.7 defines takeoff minima for Naval<br />

Aircraft.<br />

1. Instrument Departure Procedures (DPs).<br />

DPs are preplanned instrument flight rule (IFR) procedures which provide obstruction clearance<br />

from the terminal area to the appropriate enroute structure. There are two basic types of DPs.<br />

a. Obstacle Departure Procedures (ODPs) provide obstruction clearance from the<br />

terminal area to the appropriate enroute structure. Found in DOD FLIP approach<br />

plates, ODPs will be labeled with the word “OBSTACLE” in the title.<br />

Example: GEYSER THREE DEPARTURE (OBSTACLE)

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