B737-300 Performance Question !
See below performance chart ,
on temperature of 49 and 51 are denoted with an "A"
which it says means "OAT Outside Environmental Envelope"
What does this mean ?
Can we reduce to such temperatures ?
or they are not allowed to be used ?
Thanks
"*** FLAPS 05 ***" "AIR COND" "AUTO" "ANTI-ICE" "OFF" "JOMO KENYATTA"
"(20K) OPTIMUM V1" "" "" "" "" "NAIROBI,KEN"
"737-300 CFM56-3-B1 DATED 29-MAY-2008"
"*A* INDICATES OAT OUTSIDE ENVIRONMENTAL ENVELOPE"
"OAT CLIMB WIND COMPONENT IN KNOTS (MINUS DENOTES TAILWIND)"
"C 100KG -10 0 10 20"
"51A
49A" "408
421" "402*/16-18-24
434**35-43-45
416*/18-20-26" "402*/16-18-24
436**38-45-48
416*/18-20-26" "402*/17-18-24
436**38-45-48
416*/19-20-26" "402*/17-18-24
436**38-45-48
416*/19-20-26"
"" "" "448**36-43-46" "452**41-48-50" "452**41-48-50" "452**41-48-50"
"47A
45A" "434
446" "429*/19-22-28
461**37-43-47
442*/21-23-30" "429*/20-22-28
468**44-51-53
442*/22-23-30" "429*/20-22-28
468**44-51-53
442*/22-23-30" "429*/21-22-28
468**44-51-53
442*/23-23-30"
"43" "457" "473**37-44-48
454*/22-25-32" "481**45-52-55
454*/23-25-32" "483**47-54-56
454*/23-25-32" "483**47-54-56
454*/23-25-32"