MTech was the only team to have a 4.04:1 attempt run close to 8 minutes and 30 seconds in flight. No one else came close.
Their first 4.02:1 attempt was cut short and led to a total loss, drone-on-fire crash the day before.
Attempt 2, they had a 2.99 NM run with 119 lb payload on a 29.6 lb multi-copter
Quote from team lead Martin "our multi-copter was probably 1/10th of the cost of the helicopters that did well."