KR> Fuel Capacity

[peter]

Relief tubes are vital for most flights, long or short, because drinking enough 
water to keep hydrated results in safer landings and safer taxi speeds (better 
mental acuity, and fewer bodily distractions in the last hour of confinement.) 
In the summer I freeze a water bottle to sit on during the hot climb to 
altitude, and drink it during the cruise portion. I learned this from 
motorcycle touring where dehydration is a killer. Peter