Synergy Aircraft Synergy

[1][2] The aircraft's closed wing design, termed a "double box tail", is intended to lower induced drag and be stall resistant, along with boundary layer control methods.

[3] The aircraft was intended to compete in the 2011 NASA/CAFE Green Flight Challenge,[4] but its funding and engine were delayed, forcing the team to withdraw from the competition.

[5] After receiving the DeltaHawk engine in December 2011 work resumed and a funding drive was launched to complete the prototype.

The Kickstarter campaign also attracted a lot of interest, but answering email and phones calls has slowed work on the prototype down.

[9] In July 2023 the first full scale prototype received its FAA Special Airworthiness Certificate in the experimental category which allowed to conduct flight tests.