Training Arena, how long do bomb craters last?

[Mongoose]

  Let's say I am in the training arena and I am dropping bombs on the targets in the dive bombing area.  How long do those bomb craters last?

After I have dropped some bombs, it gets hard to tell which bomb crater is the most recent. 

On a related note.  Do other people see my bomb craters, or the effects of my bombs if I were to bomb a town?

[mechanic]

Hey Mongoose,

Not sure on the crater time but you can test it with enough patience. Yeah other people see your craters and the exploding bombs, sometimes they even get hit by them.

How's your friend getting on? Things are settling down again after the holidays so if that request was still there let's arrange a time to meet in the TA.

S!

[Mongoose]

How's your friend getting on? Things are settling down again after the holidays so if that request was still there let's arrange a time to meet in the TA.

Thanks for remembering.  About the only time he can find to fly is on Sunday afternoon.  So we usually try to find a good furball.  He is having fun.