The descriptions on how to prepare the pilots clothes indicate that they are being made waterproof
The description on what to feed the pilots doesn't cover what they eat during the summer months, therefore whatever they are being ritually prepared to do the rest of the year would indicate that they are doing this activity during the summer.
the descripton on how to prepare the metals is also indicative that they are being prepared for a holy use.
the description of enemy vessels is a list of houses of the zodiac
the evil wind could be literally anything but i'm thinking the kind of wind you get at sea
"The sootra indicates that there are different types of planes"
Planes/aerial craft/spaceships/ships
I think its fairly obvious that this deals with an activity thats as old as man itself
That activity is whaling
The whole thing is about purifying the ships and their construction and waterproofing the pilots clothes and protecting them from the elements
The early harappans and later the vedic societies of india regarded whales as manifestations of god, accoring to their flood myth Manu the flood survivor was saved from the deluge by god incarnated as a whale. Therefore to kill a whale without being purified in the eyes of god is seen as blasphemous.
and these guys are the past masters at covering everything they do before god in ritual
lets have a look at the god in question

well theres a surpirse he's holding a trident
heres a brief explanation as to the use of tridents in whaling
tridents thesedays are banned under international law because they are inhumane
a trident will never kill a whale it doesnt penetrate deeply enough to be fatal. it injures the whale instead.
Injured whales drown, they are mammals, as they are highly intelligent mammals an injured whale will beach itself to stop from drowning (this is a fact)
in an age when your boats are insufficient to pull a whale aboard the only thing to do is go out in a boat, stab them a few times and then retire to the beach and wait for dinner to come to you. Its why many gods wield the trident, in a time when your crops failing meant widespread famine and starvation you go to the best source of food available. That provided by god for that specific purpose
I will say that as this wasn't translated into english until well into the 20th century (1952) whoever originally translated it had quite an imagination.
But then So did Hg wells when he wrote war of the worlds about 50 years earlier(1898)
personally i'd like to believe that this is going on about aircraft, but at the time it was written the Indians were barely in the iron age.
ok