46 minutes flight time with 8.5 Kgs Hybrid Pentacopter. http://www.youtube.com/watch?v=8f5m9bxbCyo Surat Sangsiri from Thailand
86.06 minutes flight time http://www.youtube.com/watch?v=4r-62t4CoGA&list=UUoDQD92jN_smvZLugNMOGuA this is his new design http://www.youtube.com/watch?v=qSwic6dQDfc&index=2&list=UUoDQD92jN_smvZLugNMOGuA
This is his channel http://www.youtube.com/channel/UCoDQD92jN_smvZLugNMOGuA