Here's a lights configuration for Shessi's Wellington without the lights, i.e. "CFS2_Vickers_Wellington_Mk_X.zip". I got a little creative and installed blue formation lights on the rudder and the trailing edges of the wingtips. They are flagged as strobes so you can turn them on/off using the "O" key. The landing light is default FS9, the light in my fridge is brighter. A ShockWave effect or something equally bright would be better.
If you don't have a blue nav light effect just copy the lines below the cfg line entries to Notepad and save as "fx_navblu.fx".
[lights]
//Types: 1=beacon, 2=strobe, 3=navigation, 4=cockpit, 5=landing
light.0 = 3, 0.35, -42.73, 2.35, fx_navred
light.1 = 3, 0.35, 42.75, 2.35, fx_navgre
light.2 = 3, -37.44, 0, 10.10, fx_navwhi
light.3 = 5, 20.51, 0, -1.1, fx_landing
light.4 = 4, 12.32, -0.66, 1.3, fx_vclight
light.5 = 2, -2.25, -42.41, 2.13, fx_navblu
light.6 = 2, -2.26, 42.32, 2.11, fx_navblu
light.7 = 2, -37.43, 0, 10.42, fx_navblu
---------------------------------------------------------------------
[Library Effect]
Lifetime=5
Version=2.00
Radius=-1
[Properties]
Spot=1
Tower=1
Map=1
[Emitter.0]
Lifetime=0.50, 0.50
Delay=0.00, 0.00
Bounce=0.00
Light=1
No Interpolate=1
Rate=1.00, 1.00
X Emitter Velocity=0.00, 0.00
Y Emitter Velocity=0.00, 0.00
Z Emitter Velocity=0.00, 0.00
Drag=0.00, 0.00
X Particle Velocity=0.00, 0.00
Y Particle Velocity=0.00, 0.00
Z Particle Velocity=0.00, 0.00
X Rotation=0.00, 0.00
Y Rotation=0.00, 0.00
Z Rotation=0.00, 0.00
X Offset=0.68, 0.68
Y Offset=0.00, 0.00
Z Offset=-0.18, -0.18
[Particle.0]
Lifetime=0.00, 0.00
Type=19
X Scale=3.00, 3.00
Y Scale=3.00, 3.00
Z Scale=0.00, 0.00
X Scale Rate=0.00, 0.00
Y Scale Rate=0.00, 0.00
Z Scale Rate=0.00, 0.00
Drag=0.00, 0.00
Color Rate=0.00, 0.00
X Offset=0.00, 0.00
Y Offset=0.00, 0.00
Z Offset=0.00, 0.00
Fade In=0.00, 0.00
Fade Out=0.00, 0.00
Rotation=0.00, 0.00
Static=1
Face=1, 1, 1
[ParticleAttributes.0]
Blend Mode=2
Texture=fx_2.bmp
Bounce=0.00
Color Start=0, 0, 30, 1
Color End=0, 0, 50, 0
Jitter Distance=0.00
Jitter Time=0.00
uv1=0.00, 0.00
uv2=0.01, 0.01
X Scale Goal=0.00
Y Scale Goal=0.00
Z Scale Goal=0.00
Extrude Length=0.00
Extrude Pitch Max=0.00
Extrude Heading Max=0.00
[Emitter.1]
Lifetime=0.50, 0.50
Delay=0.00, 0.00
Bounce=0.00
No Interpolate=1
Rate=1.00, 1.00
X Emitter Velocity=0.00, 0.00
Y Emitter Velocity=0.00, 0.00
Z Emitter Velocity=0.00, 0.00
Drag=0.00, 0.00
X Particle Velocity=0.00, 0.00
Y Particle Velocity=0.00, 0.00
Z Particle Velocity=0.00, 0.00
X Rotation=0.00, 0.00
Y Rotation=0.00, 0.00
Z Rotation=0.00, 0.00
X Offset=0.00, 0.00
Y Offset=0.00, 0.00
Z Offset=0.00, 0.00
[Particle.1]
Lifetime=0.00, 0.00
Type=19
X Scale=1.00, 1.00
Y Scale=1.00, 1.00
Z Scale=0.00, 0.00
X Scale Rate=0.00, 0.00
Y Scale Rate=0.00, 0.00
Z Scale Rate=0.00, 0.00
Drag=0.00, 0.00
Color Rate=0.00, 0.00
X Offset=0.00, 0.00
Y Offset=0.00, 0.00
Z Offset=0.00, 0.00
Fade In=0.00, 0.00
Fade Out=0.00, 0.00
Rotation=0.00, 0.00
Static=1
Face=1, 1, 1
[ParticleAttributes.1]
Blend Mode=2
Texture=fx_2.bmp
Bounce=0.00
Color Start=0, 0, 55, 100
Color End=0, 0, 55, 0
Jitter Distance=0.00
Jitter Time=0.00
uv1=0.00, 0.00
uv2=0.50, 0.50
X Scale Goal=0.00
Y Scale Goal=0.00
Z Scale Goal=0.00
Extrude Length=0.00
Extrude Pitch Max=0.00
Extrude Heading Max=0.00
[Emitter.2]
Lifetime=0.50, 0.50
Delay=0.00, 0.00
Bounce=0.00
No Interpolate=1
Rate=1.00, 1.00
X Emitter Velocity=0.00, 0.00
Y Emitter Velocity=0.00, 0.00
Z Emitter Velocity=0.00, 0.00
Drag=0.00, 0.00
X Particle Velocity=0.00, 0.00
Y Particle Velocity=0.00, 0.00
Z Particle Velocity=0.00, 0.00
X Rotation=0.00, 0.00
Y Rotation=0.00, 0.00
Z Rotation=0.00, 0.00
X Offset=0.00, 0.00
Y Offset=0.00, 0.00
Z Offset=0.00, 0.00
[Particle.2]
Lifetime=0.00, 0.00
Type=19
X Scale=0.35, 0.35
Y Scale=0.35, 0.35
Z Scale=0.00, 0.00
X Scale Rate=0.00, 0.00
Y Scale Rate=0.00, 0.00
Z Scale Rate=0.00, 0.00
Drag=0.00, 0.00
Color Rate=0.00, 0.00
X Offset=0.00, 0.00
Y Offset=0.00, 0.00
Z Offset=0.00, 0.00
Fade In=0.00, 0.00
Fade Out=0.00, 0.00
Rotation=0.00, 0.00
Static=1
Face=1, 1, 1
[ParticleAttributes.2]
Blend Mode=2
Texture=fx_2.bmp
Bounce=0.00
Color Start=0, 0, 55, 200
Color End=0, 0, 55, 0
Jitter Distance=0.00
Jitter Time=0.00
uv1=0.00, 0.00
uv2=0.50, 0.50
X Scale Goal=0.00
Y Scale Goal=0.00
Z Scale Goal=0.00
Extrude Length=0.00
Extrude Pitch Max=0.00
Extrude Heading Max=0.00
[Emitter.3]
Lifetime=0.50, 0.50
Delay=0.00, 0.00
Bounce=0.00
No Interpolate=1
Rate=1.00, 1.00
X Emitter Velocity=0.00, 0.00
Y Emitter Velocity=0.00, 0.00
Z Emitter Velocity=0.00, 0.00
Drag=0.00, 0.00
X Particle Velocity=0.00, 0.00
Y Particle Velocity=0.00, 0.00
Z Particle Velocity=0.00, 0.00
X Rotation=0.00, 0.00
Y Rotation=0.00, 0.00
Z Rotation=0.00, 0.00
X Offset=0.00, 0.00
Y Offset=0.00, 0.00
Z Offset=0.00, 0.00
[Particle.3]
Lifetime=0.00, 0.00
Type=19
X Scale=0.30, 0.30
Y Scale=0.30, 0.30
Z Scale=0.00, 0.00
X Scale Rate=0.00, 0.00
Y Scale Rate=0.00, 0.00
Z Scale Rate=0.00, 0.00
Drag=0.00, 0.00
Color Rate=0.00, 0.00
X Offset=0.00, 0.00
Y Offset=0.00, 0.00
Z Offset=0.00, 0.00
Fade In=0.00, 0.00
Fade Out=0.00, 0.00
Rotation=0.00, 0.00
Static=1
Face=1, 1, 1
[ParticleAttributes.3]
Blend Mode=2
Texture=fx_2.bmp
Bounce=0.00
Color Start=0, 0, 140, 255
Color End=0, 0, 140, 0
Jitter Distance=0.00
Jitter Time=0.00
uv1=0.00, 0.00
uv2=0.50, 0.50
X Scale Goal=0.00
Y Scale Goal=0.00
Z Scale Goal=0.00
Extrude Length=0.00
Extrude Pitch Max=0.00
Extrude Heading Max=0.00