You can see F-16 Vs F-16 XL range comparison for the advantages of cranked deltas over plain deltas for ranges.
A tail less delta has more drag than the JF-17 type conventional lay out fighters like JF-17. But the cranked delta has much better LIFT for their drag. SO they have a preferable LIFT to DRAG ratio over JF-17 type conventional lay out fighters like JF-17 is explained beautifully in the following link.
http://www.airforcemag.com/MagazineA...1183f16xl.aspx
Tejas is also a cranked arrow tail less delta like F-16 XL.
In the photo below a normal F-16 flies along side the F-16 Xl.
If physics laws have no nationality What holds good for F-16 Xl over plain F-16 should also hold good for tejas and generally for all other tail less deltas universally on the atmosphere of the earth.
Please give any proof with credible source for ,"the disadvantage of tailless delta wing during the subsonic flight".
Even the fuselage plug recommended by CEMILAC for reducing drag by better adhering to smooth and gradual increase cross section from5 to 6 meters for tejas applies only in ,"super sonic flight" and it has no implication for subsonic loiter time or sustained turns carried out corner speeds typically lower than the speed of sound,
But this problem is solved in tejas mk-1 even without the fuselage plug as mentioned in a press release that tejas mk-1 has achieved the highest sea level top speed of 1350 Km per hour in skies over Goa during an effort to pull out of a
"Power less dive " from 4 Km altitude to sea level as part of its flutter tests,
You should note that both Mig-29 and Su-30 MKI has never achieved a top speed better than this in Indian skies in dives of straight flight.
So where is the drag ? tejas has gone past the top speeds achieved by Su-30 MKI and Mig-29 in indian skies at sea level is the official IAF wordings on that press release.
There is no chinese physics or indian ignorance attached to ,"the disadvantage of tailless delta wing during the subsonic flight"
Then how come another tail less delta Mirage-2000 has such phenomenal range?
If these Fuel fractions are true then ranges then according to universal physics laws ,
with optimum weapon load the combat range will also strictly follow the same ratios for normally combat useful mission is generally accepted practice.
No matter which manufacturer lists what range for their fighters with full external load of fuels and full weapon load for their fighters ,
with optimum weapon load the combat range will also strictly follow the same Fuel Fraction ratios for normally combat useful mission