I put 4 fans on the underside of a wing and was able to fly it for over 10 minutes!
When my battery was depleted and I was gliding to recharge the normal wing timer started but when the fans were powered again the timer stopped and I could fly indefinitely!
I hadn’t noticed until I realized I’d used a full battery and a couple of large zonite charges.
After gliding to recharge a couple of times the wing started to flash, but when the fans turned back on the flashing stopped until the fans were turned off!