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0 Sequence: The 3-plane sequence ABC means A is the plane closest to the runway and C is the furthest away.

1 Miles saved: Miles saved on final in comparison to swapping the order of the last 2 planes, e.g., ACB requires 1 mile less than ABC.

2 Representation: The Sequence in a graphical representation, e.g., F looks like * and A looks like ******.


Optimal 3-plane sequences (RECAT 1.5)

Sequence0 Miles saved1 Representation2
ACB 1
******   ****   *****
ADB 1
******   ***   *****
AEB 1
******   **   *****
AEF 1
******   **   *
AFB 2
******   *   *****
AFC 2
******   *   ****
AFD 1
******   *   ***
BBA 2
*****   *****   ******
BCA 2
*****   ****   ******
BCB 1
*****   ****   *****
BDA 2
*****   ***   ******
BDB 1
*****   ***   *****
BEA 2
*****   **   ******
BEB 1
*****   **   *****
BEF 2
*****   **   *
BFA 1
*****   *   ******
BFB 1
*****   *   *****
BFC 1
*****   *   ****
CBA 3
****   *****   ******
CCA 4
****   ****   ******
CCB 2
****   ****   *****
CDA 4
****   ***   ******
CDB 2
****   ***   *****
CDF 1
****   ***   *
CEA 4
****   **   ******
CEB 2
****   **   *****
CEF 3
****   **   *
CFA 2
****   *   ******
CFB 1
****   *   *****
DBA 3
***   *****   ******
DCA 4
***   ****   ******
DCB 2
***   ****   *****
DDA 5
***   ***   ******
DDB 3
***   ***   *****
DDC 1
***   ***   ****
DEA 5
***   **   ******
DEB 3
***   **   *****
DEC 1
***   **   ****
DEF 2
***   **   *
DFA 4
***   *   ******
DFB 3
***   *   *****
DFC 2
***   *   ****
EBA 3
**   *****   ******
ECA 4
**   ****   ******
ECB 2
**   ****   *****
EDA 5
**   ***   ******
EDB 3
**   ***   *****
EDC 1
**   ***   ****
EEA 5
**   **   ******
EEB 3
**   **   *****
EEC 1
**   **   ****
EFA 6
**   *   ******
EFB 5
**   *   *****
EFC 4
**   *   ****
EFD 2
**   *   ***
FBA 3
*   *****   ******
FCA 4
*   ****   ******
FCB 2
*   ****   *****
FDA 5
*   ***   ******
FDB 3
*   ***   *****
FDC 1
*   ***   ****
FEA 5
*   **   ******
FEB 3
*   **   *****
FEC 1
*   **   ****
FFA 6
*   *   ******
FFB 5
*   *   *****
FFC 4
*   *   ****
FFD 2
*   *   ***