from
BC0S's original post:
If you are unlucky enough to find yourself below minima on a single engine approach when you find the runway to be blocked and forced to go around, would you:
A: Fly the published missed approach?(although it is designed to be flown from minima)
B: Fly a SID? Or
C: Fly the engine out procedure? (Assuming there is one)
FE... ;
this thread is about
engine out G/A's below minima, refer 1st post. This related to whether there needs to be a plan to follow something other than the published MAP if the landing is balked below minima, on one engine out....
"A goal without a plan is just a wish"
Antoine de Saint-Exupery, (1900-1944)
CS 25.119 Landing climb: all-engines-operating
In the
landing configuration, the steady gradient of climb may not be less than 3•2%, with the engines at the power or thrust that is available 8 seconds after initiation of movement of the power or thrust controls from the minimum flight idle to the go-around power or thrust setting (see AMC 25.119); and
(a) In non-icing conditions, with a climb speed of VREF determined in accordance with CS 25.125(b)(2)(i); and
(b) In icing conditions with the “Landing Ice” accretion defined in Appendix C, and with a climb speed of VREF determined in accordance with CS 25.125(b)(2)(ii).
[Amdt. No.:25/3]
Thats
all engines for Landing Climb.
Approach climb Engine out performance is covered as
CS 25.121 Climb: one-engine-inoperative (See AMC 25.121)
(d) Approach. In a configuration corresponding the normal all-engines-operating procedure in
hich VSR for this configuration does not exceed 10% of the VSR for the related all-engines-operating
landing configuration:
(1) The steady gradient of climb may not be less than 2•1% for two-engined aeroplanes,
2•4% for three-engined aeroplanes and 2•7% for four-engined aeroplanes, with –
(i) The critical engine inoperative, the remaining engines at the go-around power or thrust setting;
(ii) The maximum landing weight;
(iii) A climb speed established in connection with normal landing procedures, but not more than 1•4 VSR; and
(iv) Landing gear retracted.
(2) The requirements of sub-paragraph (d)(1) of this paragraph must be met:
(i) In non-icing conditions; and
(ii) In icing conditions with the Approach Ice accretion defined in Appendix C. The climb speed selected for non-icing conditions may be used if the climb speed for icing conditions, computed in accordance with sub-paragraph (d)(1)(iii) of this paragraph, does not exceed that for non-icing conditions by more than the greater of 5.6 km/h (3 knots) CAS or 3%.
[Amdt. No.:25/3]
And of course for nett, subtract 0.8%. Nett is where the real world (read obstacles) live. If your twin climbs on a single engine at MLW gear and flaps down, good for you. If you want to climb via a PANS OPS MAP procedure after a balked landing engine out, again.... good for you. If you are a 4 holer operator, not a big problem, so long as you don't lose the next one (that has only happened about a dozen times, IIRC). As you have indicated it isn't a situation that you are likely to ever experience so that should be an end for it. Unfortunately, as a postholder, under JAR/EASA or FAA that would probably be unwise, and would bite back, certainly it was an audited item on the last JAA/EU AOC I developed, and was also audited by EASA on behalf of JAA. As a pilot, under the FAR, you would also of course end up with CFR 14 Part 91.7 biting you financially, but the upside is that for about a year or so, you wouldn't have to pay for board or lodging. Don't want to get a cell with "Bubba" though.
To put a numeric solution to your question about SINGLE ENGINE LANDING CLIMB, Boeing at least provides that as advisory information, in the QRH PI 13.12 (for the B777):
The B777-200ER/PW4090's, F30, gear down, ISA +15 SL, available climb rate is
120 FPM, GROSS.
The B777-300ER is much more powerful as it is standard with the GE-115B engine...
The -300ER achieves a F30, gear down, ISA +15 SL EO ROC of
-30FPM.
SE Landing Climb re G/A? you get what you pay for... Hence the reason the approach climb is where you need to get to fairly quickly. And if the OEI landing climb is considered an unlikely condition to find yourself in, think about the alternate gear extension + 1 pidgeon.
"The highest result of education is tolerance".
Helen Keller, (1880-1968)
"Optimism", 1903
cheers,
FDR