reversal procedure

reversal procedure

reversal procedureclick for a larger image
A procedure designed to enable aircraft to reverse direction during initial approach segment of an instrument approach procedure. The sequence may include procedure turns or base turns (ICAO). There are three generally recognized maneuvers related to the reversal procedure, each with its own airspace characteristics:
i. A 45°/180° procedure turn. It starts at a facility or a fix and consists of a straight leg with track guidance [this may be limited by a radial or DME (distance-measuring equipment) distance]; a 45° turn; another straight leg with track guidance (this straight leg is timed; it is 1 min from the start of the turn for categories A and B aircraft and 1' 15” for categories C, D, and E aircraft); and a 180° turn in the opposite direction to intercept the inbound track. The 45°/180° procedure turn is an alternative to the 180°/260° procedure turn [described in (ii)] unless specifically excluded.
ii. A 180°/260° procedure turn. It starts at a facility or a fix and consists of a straight leg with track guidance (this leg may be timed or limited by a radial or DME distance), a 180° turn, and a 260° turn in the opposite direction to intercept inbound track. The procedure is an alternative to the 45°/180° procedure turn unless specifically excluded.
iii. A base turn. It consists of a specified outbound track and timing or DME distance from a facility followed by a turn to intercept the inbound track. The outbound track and the timing may be different for the various categories of aircraft. Where this is done, separate procedures are published.
References in periodicals archive ?
2% of women chose surgical tubal sterilisation request reversal procedure.
Doctor tries to reverse vasectomy Dr Vaswani told the patient he could reverse the vasectomy and Patient A signed a consent form for the reversal procedure.
In the subsequent sessions, the participants were exposed to the repeated reversal procedure.
This is why we developed a sex reversal procedure in the center," he said.
This article has proposed a time reversal procedure to detect and locate "soft faults" in a transmission line or in a wire network.
Following the reversal procedure Coun Ord spent time in the Intensive Care Unit of Gateshead's Queen Elizabeth Hospital before he was moved to a secluded room in Ward 9 after being struck down with MRSA.
The advertisement hopes to undermine the demand for FGM, and to popularise the reversal procedure.
She was away for six months after the reversal procedure at Great Ormond Street Hospital in London.
w]e exercise our summary reversal procedure here simply to correct a clear misapprehension of the qualified immunity standard.
While reversal of female sterilisation has been possible for several years, it is surgeons in Wales who are pioneering an astonishing keyhole reversal procedure which is now helping previously sterilised women realise their dreams of becoming a mother again.