* Trapezoidal wing==References====Further reading====External links==*"Swept Wings and Effective Dihedral"*The development of swept wings*Simple sweep theory math*Advanced math of swept and oblique wings*The L-39 and swept wing research*Sweep theory in a 3D environment*CFD results showing the three-dimensional supersonic bubble over the wing of an A 320.
Januarja 2013 je močnejša verzija Grand Caravan EX z 867 KM motorjem dobila FAA certifikacijo.