Oxygen supply is more than 3 hours. 3+ hours of flight time for single-pilot is pretty much the fatigue limit.
OBGS have other benefits that increase the overall productivity of the platform but the max flight time will be pretty much the same.
PAC reference
Overall is the keyword in my comment. I apologize I will make sure to bold things out in the future.
This is the longest
typical mission.
Mission Profile IV - Modern Medium Altitude Strike (Precision Strike/Battlefield Air Interdiction/Deep Air Interdiction):
F-16C Block 50/52 (19,700 pounds Aircraft Empty Weight)
Internal Fuel + 300 Gallon Centerline Drop Tank + Two 370 Gallon Drop Tanks + Navigation & Targeting Pods + Two 2400 pound Precision Guided Bombs + Two AIM-120 AMRAAM + Two AIM-9 Sidewinders
510 nautical miles mission radius [minimum of 450+60, 520, 580]
JF-17 Block I/II (14,500 pounds Aircraft Empty Weight)
Internal Fuel + Two 1,100 Liter Drop Tanks + Targeting Pod + Two 1,100 pound Precision Guided Bombs + Two PL-5EII
@
470 nautical miles mission radius [minimum of 420+50, 550, 470]
Note: The above calculations are without IFR. Now introduce IFR and JF17 will outrange the F16.
Please keep in mind Pakistan only got
12 F16C which are capable of this range, on the other hand, every jf17 can perform the above mission.
JF17III will have more range because it will fly with Three drop tanks and Pod will have it's own HP.
Credit for the above calculation goes to
@Naif al Hilali
Jf17 Reference
F16 Reference
@
Syed1. @
GriffinsRule