Our team acr#20 has 2 drivers.

The question is if it's allowed to change each half hour like:

Driver1 30min + driver2 30min + driver 1 30min + driver2 30min + driver 1 30min + driver2 30min + driver 1 30min + driver2 30min = 4 hours

This gives 7 changes (4 is allowed acc. to rules) but this is between the same 2 drivers so... ?

Yours
John Borgbjerg
acr#20 Borgbjerg DK

nope, sorry..

Ok, no problem in that but what about this one then:

driver1 30min + driver1 30min
driver2 30min + driver2 30min
driver1 30min + driver1 30min
driver2 30min + driver2 30min
= 4 hours

It's 7 pitstops but only 3 changes between driver, ok ?

and then further with the following example is this allowed:

driver1 30min + driver1 30min
driver2 30min + driver2 30min
driver1 30min + driver1 30min
driver2 30min +
driver1 30min
= 4 hours

It's still 7 pitstops but now 4 changes between driver, ok ?

you can pit every lap if you wanted, as long as you dont change drivers more than 4 times your ok