ES generally you dont get a timer in a radio until you get up to 7 channels, and no your tower radio does not have one....Bass, I ususally fly alone so I dont have a go around problem and I have lost 2 planes in 10 years, one was a .25 trainer and I was too low, so it actually fell out of the sky, thats when I learned that could actually happen, the other was a .15 stick that stalled and it was either come in too fast and nose in and hope or "the swamp",,funny thing is I fixed the stick and then crashed it in that swamp the very next flight, dont really know what happened......but when I do fly around the regulars they know and I just yell out deadstick...I personally think it sharpens the skills, you can stall and fall a plane if your up high enough, which is usually where I am flying,,at the 1/2a funflys one of the contests is to landing closests to the circle...it takes practice to do ,,,some guys stall and fall, and other guys spiral in and slingshot out to come around, you should try it....Rog
Oh and I fill with a syringe so usually only 2 oz go in my tanks..