mskhan1991
Resource contributor
- Messages
- 922
- Country

Hi guys,
I have a runway with base end heading 75 degrees. But the PAPI lights show at a much lower angle than a 3 degree approach. What could be the problem? The model is at the origin in GMAX.
I also realised that the angles of separation plane A were awkward so I replaced X with Y and Y with X coordinates and the PAPI shows well in the runway direction, otherwise it was showing nearly 90 degrees to the left only.
Here is my code for lights:
(((((((((
BGL_ZBIAS 1
SEPARATION_PLANE WrongSide, -8481, 0, -31651, 32768
SEPARATION_PLANE below1, 1381, 32737, 370, 32768
BGL_LIGHT LIGHT_NAV, 0.608, 2.087, 0.026, 20, 0.60, 0.40, 0FFFFFFFFh, 0.000000, 0.000000, 1.000000 ; source poly num = 78
BGL_JUMP_32 above1
below1 label BGLCODE
BGL_LIGHT LIGHT_NAV, -0.971, 2.087, 0.049, 20, 0.60, 0.40, 0FFFF0000h, 0.000000, 0.000000, 1.000000 ; source poly num = 77
above1 label BGLCODE
SEPARATION_PLANE below2, 1565, 32728, 419, 32768
BGL_LIGHT LIGHT_NAV, -15.502, 2.087, 0.026, 20, 0.60, 0.40, 0FFFFFFFFh, 0.000000, 0.000000, 1.000000 ; source poly num = 79
BGL_JUMP_32 above2
below2 label BGLCODE
BGL_LIGHT LIGHT_NAV, -17.082, 2.087, 0.049, 20, 0.60, 0.40, 0FFFF0000h, 0.000000, 0.000000, 1.000000 ; source poly num = 80
above2 label BGLCODE
SEPARATION_PLANE below3, 1748, 32718, 468, 32768
BGL_LIGHT LIGHT_NAV, -31.613, 2.087, 0.026, 20, 0.60, 0.40, 0FFFFFFFFh, 0.000000, 0.000000, 1.000000 ; source poly num = 157
BGL_JUMP_32 above3
below3 label BGLCODE
BGL_LIGHT LIGHT_NAV, -33.193, 2.087, 0.049, 20, 0.60, 0.40, 0FFFF0000h, 0.000000, 0.000000, 1.000000 ; source poly num = 158
above3 label BGLCODE
SEPARATION_PLANE below4, 1932, 32707, 518, 32768
BGL_LIGHT LIGHT_NAV, -47.724, 2.087, 0.026, 20, 0.60, 0.40, 0FFFFFFFFh, 0.000000, 0.000000, 1.000000 ; source poly num = 235
BGL_JUMP_32 above4
below4 label BGLCODE
BGL_LIGHT LIGHT_NAV, -49.304, 2.087, 0.049, 20, 0.60, 0.40, 0FFFF0000h, 0.000000, 0.000000, 1.000000 ; source poly num = 236
above4 label BGLCODE
WrongSide label BGLCODE
BGL_END
BGL_RETURN
))))))))
Please help.
Thanks in advance
I have a runway with base end heading 75 degrees. But the PAPI lights show at a much lower angle than a 3 degree approach. What could be the problem? The model is at the origin in GMAX.
I also realised that the angles of separation plane A were awkward so I replaced X with Y and Y with X coordinates and the PAPI shows well in the runway direction, otherwise it was showing nearly 90 degrees to the left only.
Here is my code for lights:
(((((((((
BGL_ZBIAS 1
SEPARATION_PLANE WrongSide, -8481, 0, -31651, 32768
SEPARATION_PLANE below1, 1381, 32737, 370, 32768
BGL_LIGHT LIGHT_NAV, 0.608, 2.087, 0.026, 20, 0.60, 0.40, 0FFFFFFFFh, 0.000000, 0.000000, 1.000000 ; source poly num = 78
BGL_JUMP_32 above1
below1 label BGLCODE
BGL_LIGHT LIGHT_NAV, -0.971, 2.087, 0.049, 20, 0.60, 0.40, 0FFFF0000h, 0.000000, 0.000000, 1.000000 ; source poly num = 77
above1 label BGLCODE
SEPARATION_PLANE below2, 1565, 32728, 419, 32768
BGL_LIGHT LIGHT_NAV, -15.502, 2.087, 0.026, 20, 0.60, 0.40, 0FFFFFFFFh, 0.000000, 0.000000, 1.000000 ; source poly num = 79
BGL_JUMP_32 above2
below2 label BGLCODE
BGL_LIGHT LIGHT_NAV, -17.082, 2.087, 0.049, 20, 0.60, 0.40, 0FFFF0000h, 0.000000, 0.000000, 1.000000 ; source poly num = 80
above2 label BGLCODE
SEPARATION_PLANE below3, 1748, 32718, 468, 32768
BGL_LIGHT LIGHT_NAV, -31.613, 2.087, 0.026, 20, 0.60, 0.40, 0FFFFFFFFh, 0.000000, 0.000000, 1.000000 ; source poly num = 157
BGL_JUMP_32 above3
below3 label BGLCODE
BGL_LIGHT LIGHT_NAV, -33.193, 2.087, 0.049, 20, 0.60, 0.40, 0FFFF0000h, 0.000000, 0.000000, 1.000000 ; source poly num = 158
above3 label BGLCODE
SEPARATION_PLANE below4, 1932, 32707, 518, 32768
BGL_LIGHT LIGHT_NAV, -47.724, 2.087, 0.026, 20, 0.60, 0.40, 0FFFFFFFFh, 0.000000, 0.000000, 1.000000 ; source poly num = 235
BGL_JUMP_32 above4
below4 label BGLCODE
BGL_LIGHT LIGHT_NAV, -49.304, 2.087, 0.049, 20, 0.60, 0.40, 0FFFF0000h, 0.000000, 0.000000, 1.000000 ; source poly num = 236
above4 label BGLCODE
WrongSide label BGLCODE
BGL_END
BGL_RETURN
))))))))
Please help.
Thanks in advance