it’s true :3 im fucking stupid
o_o my flash fly alone in the sky :o
it’s normal ??
But why not 
I will try with GetEntityForwardVector(ped) and i close the ticket :3
K its good 
You are using the coords from the ped, so for example if the Z Coord of you ped is 100 you apply a Z force of 100 to your ped. This causes it to go up.
It’s good i have replace the GetEntityCoords(ped, true) by GetEntityForwardVector(ped)