unusual prop effect

The Red Bull Blanik chaps are at it again!

http://www.redbull.at/cs/Satellite/de_AT/Video/akte-blanix-3-video-luftfahrtstunt-021243208654911

Caption competition !

Mays Rota

Day	Month	Date	Instructor	Basic Instructor	Duty Pilot AM	Duty Pilot PM	Tug Pilot
Saturday	May	5	Phil Marks	Bill Inglis	Chris Morris	Colin Hussell
Sunday	May	6	Frank Jeynes	Alan Wallace	Martyn Wells	Gill Stewart
Monday	May	7	Self-authorised only
Tuesday	May	8	Self-authorised only
Wednesday	May	9	David Findon
Thursday	May	10	Self-authorised only
Friday	May	11	Self-authorised only
Saturday	May	12	Keith Brackstone	Alan Broadbridge	Rob Gisby
Sunday	May	13	Keith Edmunds	Graham Barlow	Mark Winters	Mark Winters
Monday	May	14	Self-authorised only
Tuesday	May	15	Self-authorised only
Wednesday	May	16	Phil Marks
Thursday	May	17	Self-authorised only
Friday	May	18	Self-authorised only
Saturday	May	19	David Findon	Alan Broadbridge	Rob Stafford	Rob Stafford
Sunday	May	20	Keith Edmunds	Alan Wallace	Pete Jackson
Monday	May	21	Self-authorised only
Tuesday	May	22	Self-authorised only
Wednesday	May	23	Frank Jeynes
Thursday	May	24	Self-authorised only
Friday	May	25	Self-authorised only
Saturday	May	26	Keith Brackstone	Alan Broadbridge	Martyn Wells	Martyn Wells
Sunday	May	27	Phil Marks	Andrew Turk	Mark Winters	Mark Winters
Monday	May	28	Self-authorised only
Tuesday	May	29	Self-authorised only
Wednesday	May	30	David Findon
Thursday	May	31	Self-authorised only
Friday	June	1	Self-authorised only
Saturday	June	2	Keith Edmunds	Bill Inglis		Mike Pope
Sunday	June	3	Frank Jeynes	Graham Barlow	Pete Jackson