"Don't try it here." Xia Yu waved her hand.

"There must be a Zheng Jun sentinel nearby. You arrange for someone to drag the hot air balloon to the wild, test it quietly, and get familiar with its lifting, lowering, load capacity, speed, range and other properties."

"Remember, it must be kept confidential."

"promise."

"By the way, when will the Zheng family deliver the large amount of silk they need?" Xia Yu was very concerned about this.

"Back to the military advisor," Huang Junhan said hurriedly: "The Zheng family has completed the dispatch of the required silk. We will start shipping it from Xingyang today, take the waterway, and arrive at Baiya in the evening."

"Very good. Let's start tomorrow and build a hot air balloon at full speed. Before General Liu can conquer Hanoi, Mengjin City and the Heyang Floating Bridge must be solved."

"No." Huang Junhan accepted the order.

Xia Yu knew that in just a few days, it would be impossible for Tang Jun to fully explore the performance of the hot air balloon, and it would also be difficult for him to control it skillfully.

Such a hasty attack, coupled with going deep behind enemy lines, will inevitably pay a bloody price and huge casualties.
Chapter completed!