Its service ceiling.
20,000 mtr is good enough, but not good enough when you have to maintain the climb rate with full battle load continuously at 17,000 or 18,000 mtr.
It would effect its service life and availability rate.
This is in a scenario where all of its hell fire loads account for 1 kill each. Very unlikely. But it shows the amount of firepower and punch it could pack into one sortie.
Add its sensors along with it, its a force to fear out there.
Sorry to share this heart wrenching news with you.
https://books.google.co.in/books?id=J1vzDAAAQBAJ&pg=PA63&redir_esc=y#v=onepage&q&f=false
This was in 60's.
Yes........
But as Toilet Of India suggested, its not Spike Anti Tank Missile. SANT has been designed as a multiplatform and multirole missile as opposite to HELINA which has been developed just as an anti armour missile.
SANT missile would go into the strike jet for CAS role along with...
Difference is in guidance. While Hellfire use Laser guidance as primary source with RADAR as secondary, Helina is based around its MmW and IIR seeker as primary source.
But the biggest difference is, HELLFIRE is a matured missile whereas HELINA is a work in progress.