The mods use Wuzzy's player effects mod (viewtopic.php?f=11&t=9689) to give the player who uses the wings/jetpack the power to fly for a limited time. They can have craft recipes, or these can be disabled, so that the wings can only be got with giveme or through an admin shop on a server. Note, players with the fly priv are not able to use wings or jetpacks. A message is sent to them alerting them of this fact when they try to use one.
The code used for the Flying Carpet comes largly from the Helicopter mod (viewtopic.php?id=6183)
The mods can be configered through their config.lua files; it is worth having a look through them before you use the mods.
Spoiler

Wings:
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diamond mese_crystal diamond
mese_crystal steelblock mese_crystal
diamond mese_crystal diamond
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diamondblock mese_crystal diamond
mese bronzeblock mese_crystal
diamond mese_crystal diamond
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diamondblock mese_crystal diamondblock
mese goldblock mese
diamond mese_crystal diamond

Jetpack base
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steel_ingot nothing steel_ingot
steel_ingot steel_ingot steel_ingot
steel_ingot nothing steel_ingot
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diamond jetpack_base diamond
mese_crystal steelblock mese_crystal
diamond mese_crystal diamond
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diamondblock jetpack_base diamond
mese bronzeblock mese_crystal
diamond mese_crystal diamond
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diamondblock jetpack_base diamondblock
mese goldblock mese
diamond mese_crystal diamond

Any kind of wool can be used to craft them.
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wool wool wool
mese goldblock mese
Maybe make nicer textures for the wings, help would be appreciated!
Add an option that makes the wings and jetpacks take wear.
Maybe make more carpets with different textures...
Dependencies:
(Jetpack and wings)
playereffects
default? (For the crafting recipes.)
(Flying Carpets)
default
License:
MIT (Code of Jetpacks and Wings, textures and models.)
LGPL v2 (Code of Flying Carpets, as this is what I think the Helicopter mod uses, please correct me if I'm wrong!)
Download and github:
Download: https://github.com/Amaz1/flight/archive/master.zip
Broze the code on github: https://github.com/Amaz1/flight