Mathomathis would like to present the article on the Vaimanika Shastras – Vimana Shastras by Maharshi Bharadwaaja Propounded by Venerable SUBBARAYA SHASTRY Translated into English and Edited, Printed and Published by G.R. JOSYER SCHOLAR, HISTORIAN, ESSAYIST, SANSKRITIST Printed at CORONATION PRESS, MYSORE-4, INDIA. Readers are advised to complete the previous article Vaimanika Shastras – Vimana Shastras | Darpana Prakarana | 105 before proceeding further.


Shakti Panjarakeela Yantra: In order to provide electric force to all parts of the vimana and make them operate smoothly the shakti-panjara-keela yantra is to be installed. According to Yantrasarvasva, “As a means of charging all parts of the vimana with electric current the shakti-panjara-keela is prescribed. It is made as follows: Steel, crownchika alloy, and iron, in the proportion of 10, 8, and 9, to be powdered and filled in crucible, and placed in aatapa furnace and heated to 100 degrees and charged with 10 degrees of electric current, will yield Shakti garbha metal with which the yantra is to be made.

A peetha or plank of arm’s length and equal height, should be made out of above metal. In the middle and at either end of the peetha three pivots with half moon shaped hinges should be fixed. A flat bar made of copper should be fixed and tightened with bolts. Pipes with holes are to be made out of the metal and equipped with rods fixed in the holes, and connected all round with wires, forming a strong caged globe. The cage should be fixed at the top of the copper band. For the rods and wires in the cage to receive electric current a switch should be duly fixed at the bottom of the cage. And switches should be provided for all the 32 parts of the vimana for electric connection and disconnection. This enables the plane to career through the sky in any desired direction.”

Shirah-Keelaka Yantra:- It is said in Kriyaa-saara, “When the plane is passing through a region of overhanging clouds, there is possibility of lightning striking and destroying the plane. As protection against that the shirah-keelaka yantra should be installed at the crest of the vimana.” The Yantra is described in Yantra Sarvasva: “When there is danger of lightning striking the plane, the shirah-keelaka yantra is to protect it. Therefore it is explained below. An umbrella, of the same size as the top of the vimana, with ribs and metal covering should be made out of vishakantha metal. The umbrella stick, of arm’s length, and peetha or stand, circular in shape, should be made out of the same metal. Then out of baka-tundila metal three wheeled keelakaas or hinges should be fixed at the front, back, and middle of the vimana. The umbrella rod should be fixed in the middle of two keelakas. The agnikuthaara crystal with metal cage should be fixed at the top like a crown. A three wheel switch revolving key should be fixed by the side of the pilot. Then wires made of kulishadhwamsa metal should be run from the crystal to the three wheeled revolving keelaka. In front of it shabda-naala tube with switch should be fixed. The yantra should be enclosed in a cover made of suranjikaa glass. When there is anticipatory thunder in the clouds, the glass covering cracks, and the tube of the wiring will emit sounds, and the wires will be severely shaken. When the pilot notices these signs, he should quickly set in motion the three-wheel keelee, which will revolve the umbrella with 100 linka speed. Then the crystal switch should also be turned, where-upon the crystal will also revolve with intense speed. By the speed of the revolution of the umbrella, the force of lightning will be stemmed, and the danger will be passed, leaving the vimana and the pilot safe. That is the use of the shirah-keela yantra.

Shabdaakarshana yantra: In order to tap or discover the sounds in the 8 directions of the vimana, wired or wireless, up to 12 krosas or 27 miles, caused by birds or quadrupeds or by men, with 8 mechanisms, the shabdaakarshana yantra is prescribed to be fixed in the shoulder of the vimana. A peetha or foot-plate four-cornered or round should be made out of bidaala metal, with a pivot in the centre. On either side should be fitted machines which will attract any kind of sound and repeat it. With the soft leather of roruva or grinjinee bird two ball-shaped domes should be fixed. Between them in a suraghaadarsa vessel katana-drava acid should be filled and the vessel should be installed. Above the acid vessel and between the two globes should be fixed sound spotting rod made of sound capturing ghantaara metal, fitted with a bunch of wires. It should be enclosed in a cover made of kwanaka glass. In the corner three thumb size wheeled knots should be fixed. From them to the rod fine strong wires should be connected. Enclosing the wires a karanda or container made by kwanaadarsa glass, with small holes should be placed. A vessel made of the same glass, shaped like a drona or grain measurer, should be placed on top of it. In the east and west and north and south 4 crystals named rudantee-ratikaa should be arranged with wires. Above it shabdaphenaka covering, with small shankus or screws fixed, should be placed. It should be covered by a covering made of kwanaadarsa glass, with 8 small holes. Wires starting from the screws and passing through the holes should reach the top of the covering. In the centre of it in an inch size hole simhaasya-danda-naala or tube should be fixed.

In front of it a vaataapaakarshana chakra or wind wheel with 16 spokes with wires should be fixed. The wheels should be fixed in all 8 directions. In the simhaasya mukha naala or lion-faced tube on 8 sides revolving wheels should be fixed. 8 goblet like vessels made of pure vajeemukha metal should be fixed. Wires from the 8 holes of the covering should be placed in them. Similarly from the wind wheel wires should be connected to 8 screws in the 8 goblets on the simhaasya. Then from the 8 screws in shabda-phena, wires should be connected to the crystal in the acid vessel. By the flow of wind the wheel turns with speedy right and left motion, and will set in motion the shabda-phena wheel. Then the wheels on the 8 screws also will turn. Then the sound detection rod made of sound-capturing ghantaara metal will be set in motion. Thereupon the two globes made of roruva-grinjinee skin will attract all sounds clearly and store inside themselves. By moving the central switch there the sounds will pass through the simhaasya tube and enter the dronaasya vessel, and make the sounds clearly audible to the hearer. The pilot will listen to the voices and direct the plane away from the vicinity of danger. Hence the shabdaakarshana yantra is prescribed. This yantra is in 32 varieties. And it is distinct from the 32 parts constituting the vimana.

Of the materials required for this yantra,–Byndaala Metal, according to Lohasarvasva, is made as follows: Zinc, sharkara or quartz powder?, kaanta or steel, mica, shilaarasa, kamatha or benzoin, dimbhaari, areca-nut, karagrathinee, copper, virinchi, karna or sal tree, patalee or long blue cucumber, gumbhalee, dumbholika alloy, kshaara or chloride, kraantika, simha, panja or momordika, dalinee, mercury, eye-black powder or surma?, kshonika, veera or red-lead, yellow thistle, madder-root, mridarutee, brass, iron, these articles should be powdered, and purified in equal quantities, filled in shashamoosha crucible, placed in mandooka furnace, and with five-mouthed bellows heated to 200 degrees and melted to eye-level, when cast will yield a fine, light, blue, bydaala alloy.

Rutana acid is explained in “Moolikaarka prakaasikaa” as follows: Yellow thistle, karanda or iron pyrites, wild liquorice, paarvani or chlorodendrum phlomaides, chanchooli or red castor, bhantikaa or madder root, kaarambha, vishwesha, chandikaa or sesbenia grandiflora, amara or Indian turnsole?, shundaalika, barbaraasya, sowrambha or tooth-ache tree?, praana-kshaara or ammonium chloride, virinchi, borax, arka or calotropis gigantia, surubhee or basil, these in the proportion of 4, 3, 3, 5, 7, 12, 15, 1, 3, 10, 24, 25, 30, 12, 20, 8, purified and filled in vessel and boiled to 108 degrees, will become a fine yellow rutana-draavaka acid.

Ghantaarava metal is explained in Lohatantra: Bell-metal, aaraara, ruchaka or patron.?, gaaruda or emerald stone?, shalyakrintana, panchaasya, veerana, rukma or gold-metal, shukatunda, and sulochana, these 10 metals purified and powdered in the proportion of 5, 3, 12, 2, 3, 7, 5, 30, 4, 24, should be filled in shukti crucible, wrapped all round with earth, placed in alaabu shaped furnace, and boiled to 500 degrees up to eye level, should be poured into the mould. A fine, light, scarlet metal which will record all sounds will result.

Kwanadarpana mirror is explained in Darpana Prakarana: Wild liquorice seeds, red catechu, false catechu, white catechu, garadaka or a poison, 8 kinds of salt, salyaaka, vara or sodium chloride, sharkaraa or granite powder, budilaka salt, jwaalaamukha or wolf’s bane?, tundila or kayidonda, bydaala or arsenic?, shukatunda, ravimukha or magnifying glass, chancholika or red castor seed, arjuna or tin, luntaaka, varataala or yellow orpiment?, kuravaka or crimson thorny amaranth, kambodara, kaamuka or punnaaga or Alxandrian laurel or pinnay oil tree, these ingredients, after triple cleaning, are to be filled in padma crucible, placed in padmaakara furnace, and heated to 700 degrees, and poured in mould, will yield an excellent kwanadarpana glass.

Rudantee-mani is explained in “Mani Prakarana”: Kshaaratraya or natron, salt-pare, borax, aanjanika or eye-black powder, kaanta or sun crystal, sajjeeka, vara or sodium chloride, karna or oxide of arsenic, cowrie shells, maakshika or iron pyrites, sharkara or granite grains, sphaatika or alum, kaamsya or bell-metal, mercury, taalakasatva or yellow orpiment, gyra or marking nut, ruruka, rouchyaka, kudupa, garada or aconite, panchamukha metal, shingara or iron dross, and shundolika or great leaved caledium, these 21 articles, purified, and filled in aanika crucible, placed in shouktika furnace and boiled to 103 degrees, and cast into maniyantra mould, becomes a fine rudantee crystal.

Ruchika mani also is explained in Maniprakarana: Sea-foam, chamaree cat’s nail and mouth bones, steel, paarthiva, granite grains, shilaarasa or liquid amber, mercury, praana-kshaara or ammonium chloride, alum, naaga, cowrie, maakshika or iron pyrites, shundaala or great-leaved caledium, rundaka or eagle wood, kudupa, suvarchala or natron, jambaalika, musk-cat’s tooth, or yellow orpiment?, ranjaka, manjishtha or madder root, paarvani or stag-horn, rukma or gold quartz, yellow thistle, owl’s nails, vara or ammonium chloride, oyster shell, these ingredients, purified and filled in equal proportion in nakhamukha crucible, placed in mahodara furnace and heated with the aid of six-faced bellows to eye-level, and poured into mould will yield a strong, dark, heavy rutikaa crystal.

Shabda phena mani is described in “Shabda-Mahodadhi”: “Take badaba sound from the sky, life-giving trait from water, the fire of air from the atmosphere, the echoing quality from boulder, the splitting quality from solar-rays, moss layer, sea-foam, bamboo, conch; manjishtha or madder root, kusha grass, gribhdnaka, rudra-shalya, gokarna or sal?, and musali or curculigo orchioides, in the proportion of 7, 22, 45, 13, 32, 19, 38, 14, 22, 38, 42, 13, 25, 9, and 23. These purified and boiled will yield shabdaphena.” From moss-layer to musali the ingredients should be purified, and in the said proportions should be filled in phenaakara yantra, should be baked for 3 days, and for a week the sankalana key-wheel of the yantra should be turned in full speed for half a ghatika daily, when foam will be formed. The foam should be filled in shakti-sammelana yantra. Then through 6 tubes the 6 shaktis or powers from praanana to sphotana should be injected into the foam patiently. On either side of the yantra switches should turn the mixing or churning wheel inside the yantra. Then moderate heat should be applied from praanana to sphotana power infusion. Then keeping it in the sun, electric power should be applied to the foam up to 85 degrees. This electric cooking should be done for 6 days. Then carefully extracting the foam from the yantra, it should be stored in the vaajeemukha metal box. That shabda-phena would be able to attract and record all kinds of sounds.

Vaajeemukha metal is described in “Lohatantra”: Copper 3 parts, sonamukhee or iron pyrites 2 parts, zinc 8 parts, veera or black metal 2 parts, kaanta or steel 3 parts, bambhaarika 1 part, kamsaarika 3 parts, panchaanana 6 parts, gowreemukha or mica? 2 parts, shundaalaka 6 parts, these 10 articles to be purified and filled in shundaalaka crucible, placed in shoorpaasya furnace and heated with vajraanana bellows and poured in vajraanana yantra and churned energetically for proper cohesion of the liquid, will yield vaajeemukha loha of light reddish brown colour.

Pataprasaarana yantra is described in Kriyaasaara: In order to realise dangers to the vimana en route, and shift directions towards safety, pataprasaarana yantra is prescribed. Says Patakalpa: “Munja grass, lac, sal, red brinjal, shaambaree or arjuna tree bark, jute, raajaavarta or sphatikaari or hydrorgirum sulphuratum, darbha grass, kravyaada or Indian spikenard, with triple purification, and thrice exposing to soorya-puta or sun-baking, placing them in the cooking vessel, and baking for 3 days. Then the product should be filled in kuttinee yantra, and churned for 3 yaamaas or 3/8 of a day, then placed in cooking vessel and rebaked for 3 days. Then it must be poured into patakriyaa yantra or cloth-forming machine and churned, so as to form an even emulsion, and that will form a fine artificial cloth. It should then be coloured with seven colours. It should be rolled round a long pole, and the pole fixed in thrimukhee-naala yantra, and equipped with a key should be installed in the shoulder of the vimana.

When the flag-like contraption shows red indicating danger ahead the pilot should loose height and reach safety. When favourable colours are shown, the pilot should note their significance and move the vimana in the favourable direction.

Dishaampati Yantra: says “Kriyaasaara,” “In its passage in the sky in the eight directions, the vimana is likely to meet 15 fierce hurricanes called kowbera by the effects of the planetary forces With solar rays and unfavourable seasonal conditions. They will cause baneful skin effects on the occupants of planes and throat and lung troubles. To protect against that the Disaampti yantra is to be installed in the left shoulder of the vimana.”

Vimanas - Mathomathis

The yantra is described in “Yantra Prakarana”: “In order to act as antidote to the poisonous effects of the kowbera winds, F shall describe the disaampati yantra. A peetha or foot plate, quadrangular or circular, should be made of paarvanee wood cured three times with requisite acids.”

Paarvanee wood is described in “Agatatwa Laharee”: “Parvanee wood is wood which has very close joints as in sugarcane. It is red coloured, long leaved, decked with red flowers. It has small thorns, is antidote for snake-poison, is acrid in taste, and is used in driving away demons and other evil forces. It blooms in the dark half of the month.” In the centre of the peetha, a tube or pivot made of the 19th type of glass, with 9 holes, 9 switches, and 9 wires, and of arm’s length, should be fixed. Eight kendras or centres should be spotted in its 8 directions. 8 naalas, pipes, or tubes, should be made 2 feet long, 6 feet high and 3 feet wide, and round in the middle. A lotus with 8 petals should be prepared and fixed on the top of the pivot. The whole should be covered with hare-skin. Manchoolika linen should cover its mukha or entrance. The wires in the tubes should be taken to the petals above the lotus and fixed in the joints.

Manchoolikaa linen is explained in “Pata-pradeepikaa”: Vaasantee or gaertnera racemosa creeper, mrida, ranjikaa or betel or madder root, ruchikaa or citron or castor, samvartakee or myrabalan belliriki, phaalgunee or sepistan plum, chanchora or red castor, arunakaanta or sun-flower, kudalinee, mandoorika or iron dross, maarikaa or cubed pepper, lankaari, kapivallaree or elephant pepper, vishadharaa, samvaalikaa, manjaree or ashoka, rukmaangaa or cassia fistula, dhundikaa or acacia sirisa, arka or gigantic swallow wort or madar, garudaa or coculus cordifolious, gunjaa or wild liquorice, and janjharaa.

Taking the twigs, shoots, leaves, buds, tendrils and barks of the above ingredients, and putting them in the baking vessel, they should be well cooked. Then add crowncha acid and boil again for 3 days. That will produce a soft white, pure, strong, fine manjoolikaa linen cloth. Vaatapaa crystal should be placed in it. Amshupaa mirror should be placed at its front. When the Kowbera whirlwind contacts solar rays, then the amshupaa mirror will show a red and blue tinge. Then the keys of the nine tubes should be turned with great speed. By this a force will be generated in each tube, and passing to the hare-skin, a strong force called sammarshtikaa will be generated. The manjoolika cloth will receive that force and pass it to the lotus petals, and the petals by means of wires will transmit the force to vaatapaa crystal. The crystal, will, with the aid of sammarshtika force, absorb the Kowbera evil wind and throw it out through the lotus petal tube to merge in the outside atmosphere, and no harm will be caused to the occupants of the vimana. Therefore disaampati yantra should be installed in the vimana.

19th type mirror is described in Darpana prakarana: Uraga-twak or snake-scales, pancha-mukha, vyaaghradanta or tiger’s tooth, sand, salt, mercury, lead, white gum or shweta-niryaasa, mrittikaa, sphaatika or alum, ruruka, veera or red lead? mrinala or lotus tendril, ravikarpata, chanchola or red castor, vaalaja, panchapraanasaara or urinal salt of man, horse, ass, ox, and sheep, or ammonium chloride, shashodupa or benzoin shoot. These 18 ingredients in the proportion of 3, 7, 5, 22, 4, 15, 2, 5, 20, 7, 30, 15, 40, 23, 27, 13, 19, 18, purified thrice, filled in matsya moosha crucible, placed in nalikaa furnace, and with the aid of gomukhee bellows boiled to 99th degree, and poured into the mould, will yield pingala mirror.

Pattikaabhraka Yantra: Says Kriyaasaara:- “In order to safeguard against the fires generated by the juxtaposition of planets during its course, the pattikaabhraka yantra is to be installed in the centre of the vimana.” It is said in “Yantrasarvasva,” In the course of its planetary motions, two planets sometimes get too near each other, when by the conflict of their giant forces, fires will burst out. They are known as jwaalaamukhee or flame-tongued, and will destroy the vimana and those inside it. As protection against it, pattikaabhraka yantra should be installed in the vimana. The yantra should be made out of the 3rd type of mica amongst the 3rd group of its classification. It is said in “Shownakeeya,” “The names of mica belonging to the 3rd group are shaarada, pankila, soma, maarjaalika, rakta mukha, and vinaashaka. The yantra should be made of soma variety.”

Somaabhra is described in Loha-tantra: “It is sky-coloured, fine, strong, absorbent, cure for eye diseases. Its touch is cooling to the body. It has diamond content, and is cure for urinal trouble. It exhibits scarlet lines with whorls. These are the qualities of somaabhraka.” The mica should be purified twice with brinjal and mataa seed oil and melted, and a pattika two feet wide and of arm’s length high should be fashioned. A koorma peetha or tortoise-shaped foot-plate 16 inches wide and arm’s length high should be made with vaari vriksha. A shanku or pivot should be made like the pattika. Revolving wheels with keys and shoundeerya manis or crystals should be fixed. From the main, centre wires should be attached to it to the end of the pattika. On the other side an ivory vessel should be fixed, and filled with shyvaala acid, and adding mercury ravichumbaka manis or crystal should be placed in it. The wires should be connected to the inside of the vessel containing these things. From the pivot it should be covered with shringinee. The root of the naala or pivot should be fixed to face the sky. The mica shanku with five revolving wheel key attachments should be fixed in the centre of the peetha, and the acid purified pattika should be fixed on top of it in the centre of the vimana covering. When the jwaalaamukhee erupts from the planetary contact and reaches the direction of the vimana, the main switch of the pivot should be operated, a cold wave will arise through the wires from the acid vessel, and passing through the five wheels reach the pattika, and contacting the jwaalaamukhee force will draw it and push it to the crystal in the centre of the enclosure, and the crystal will thrust it through the naala or pipe to the outside atmosphere where the flame force will get extinguished.

Soorya Shaktyapakarshana Yantra or Solar heat extracting Yantra: In order to relieve the excessive cold of the winter months, the soorya shaktyapakarshana yantra should be installed on the vimana. Says Yantra Sarvasva, “In order to protect from the cold of the 4 winter months the solar heat storing machine is now explained. The 27th kind of mirror capable of capturing solar heat is to be used in its making.” It is said in Darpana prakarana: Sphatika or alum, manjula or madder root, sea-foam, sarja salt or nation, sand, mercury, garada or aconite, kishora or wild liquorice, gandhaka or sulphur brimstone, karbura or yellow orpiment, praanakshaara or ammonium chloride, in the proportion of 12, 1, 5, 1, 13, 12, 8, I0, 27, 4, 3, 7, 8, 5, 1. 5, 8, 3, 9, 2, purified, to be filled in antarmukha crucible, placing it in shuka-mukha furnace, and boded. Then pour it into antarmukha yantra or vessel and turn the churning key. When cooled in the mould a fine, light, strong, golden. coloured, solar heat collecting glass will be formed.

From this glass prepare a pattika or plank, 80 inches long, 20 inches wide, and 1 inch thick. Three spots are to be marked on it. Two naalas or pipes, of arm’s size, with 10 inch mouth, crescent shaped peetha should be prepared. Another peetha, 2 feet long, and 6 feet high, should be prepared. The crescent shaped peetha should be fixed in it. On its two sides the 2 naalaas should be fixed. Between them a pivot 88 inches long and 3 inches wide should be fixed. The other pattika should be fixed on its top. At its 3 marked spots, lotus shapes with petals made of the above glass with two faces with goblets on them should be fixed. The two naalaas or pipes should be filled with shyvaala or moss acid and shrini acid. Chhaayaamukha crystal should be placed in them. At the foot of the shanku jyotsnaa acid should be placed. Cold absorbing wires with key switches with ball bearings should be fixed in the jyotsnaa acid. The wires should be taken between the neighbouring naalas, taken round the two lotus positions on the sides of the pattika, and then made to surround the central lotus, and lead on and placed inside the jyotsna acid. Then the other naala should be made to cover the acid vessel, and fixed so as to have its opening through the bottom of the vimana.

On the approach of winter cold into the vimana, the main wheel at the foot of the shanku should be turned at high speed. That will energise the head wires of the pattika, making the lotus petals active, and the wind will draw the cold and pass to the central acid vessel through the wires, and the acids in the 2 naalas will draw in the cold and pass to the chaayaamukha mani, which by its own force will pass the cold force to the jyotsnaadravaka, which will eject it through the naala to the atmosphere outside for being dissolved. The vimana will thus be saved from the cold force through the soorya-shaktyapakarshana yantra.

Apasmaara dhooma prasaarana yantra or poison-gas fume spreading machine: Says Kriyaasaara, “When the enemy plane is trying to destroy your vimana, Apasmaara dhooma prasaarana yantra should be provided in the vimana to combat it.” Yantra Sarvasva Says:- “Apasmaara dhooma prasaarana yantra is prescribed for protection of vimana from enemy planes. It should be manufactured with khoundeera metal only, and not with anything else.” Kshoundeera loha is described in Lohatantra:- 8 parts of kshwinka or zinc, 5 parts of mercury, 7 parts of krowncha alloy, 3 parts of kaanta or steel, 4 parts of hamsa or metallic silver, 1 part of maadhweeka, and 5 parts of ruru, these ingredients to be purified and filled in crucible, placed in chhatreemukha furnace, and with the acid of surasa bellows heated to 100 degrees heat, and cast in mould will yield excellent kshoundeera alloy. Filling this loha in pattikaayantra, applying 300 degree heat and churning a fine strong pattikaa will be formed. With that, a shape like bellows, 5 arm’s length high, and 3 arm’s wide should be formed. It should be provided with a mukha-naala or nozzle 6 feet in size. Its mouth should be like that of peshanee yantra. The opening should be covered and keyed. Three satchels should be attached at its bottom. In the middle an aavarana or covering with hare-skin, circular and provided with switch. Smoke or gas filling switch should be provided at its base. Above it a choorna paatra or powder vessel should be fixed. The switch key should be beneath the middle of the vessel.

Thus four bellows should be prepared. When the enemy plane’s attack is expected, the aavaaraka bhastrika or enveloping bellows should shield the vimana, and the 4 bellows should be fixed on the dikpeethaas or side seats above the aavarana or covering, and electricity should be applied to the choorna-paatra or powder keg. Immediately the powder becomes smoke. The bellows’ mouth should be opened and the key turned. The emerging smoke fumes will enter the 4 small bellows, and from them reach the central kunda and spread all around and reach the bellows’ mouth. Then on turning that key, the fumes will be emitted from all the bhastrikaas or bellows, and encompass the enemy plane and disable its occupants. That plane will be destroyed and the danger to one’s vimana overcome.

Stambhana Yantra or Halting machine:- Kriyaasaara says, When power is generated by conflicting forces in the water-charged regions, shrieking hurricanes and whirl-winds will arise and set out in a mad career of destruction. To safeguard against their onslaughts, the Stambhana yantra should be installed in the bottom of the vimana. Yantra sarvasva says, In order to protect the plane from the attacks of giant wind blasts, vimana stambhana yantra is described as follows: A peetha, one fourth the size of the vimana floor, quadrangular, should be made out of vakratunda metal, three feet in thickness. In its 8 quarters spots should be marked for fixtures. An enclosure with openings, revolving toothed wheels made of the same metal, wheel rods with revolving keys, a metal band which is to encircle it thrice, toothed wheels, pivots, and switches and hinges, and three-stranded wire ropes, should also be of the same metal. In the 8 selected spots naalaas or pivots with wheels and wiring should be fixed.

Through the naala or pipe at the contraction switch of the vimana, wires should be passed through the other naalas to the central pivot, and tied at the foot of the revolving wheel. When the dreaded wind current is observed the switch or wheel for the contraction or folding of the expanded vimana parts should be turned, as also the 8 side wheel turning switches. That will reduce the speed of the vimana. Then the switches of the 8 pivots on the peetha or foot-plate should be turned. The entire speed of the vimana will be extinguished thereby. The wheel at the central pivot of the peetha should then be turned, so that the vimana will be halted completely. Then the switch of the plane-wings should be turned. The flapping of the wings will produce winds which will encircle the vimana and form a globe protecting it. Then by turning the switch of the brake-rod, the vimana becomes motionless. Therefore the Yaana sthambhana yantra should be fixed at the bottom centre of the vimana.

Vyshvaanara-naala yantra: Kriyaasaara says:- For the purpose of providing fire for passengers to perform agnihotra or daily fire rituals, and for the purpose of cooking food, Vyshwaanara naala yantra is to be fitted up at the navel centre of the vimana. Yantra-sarvasva says:-  To provide fire for travellers in vimanas, vyshwaanara naala yantra is now described. A 2 feet long and 12 inches wide peetha or foot-plate should be made out of naaga metal, quadrangular or circular in shape. Three kendras or spots should be marked thereon. Three vessels should be made of copper and karpara or (black jack?) zinc blended metal. One vessel should be filled with sulphur-brimstone acid. Another should be filled with rookshaka bdellium acid, or croton seed acid? And manjishta or madder root acid should be filled in another vessel. The three vessels should be placed on the 3 kendra spots on the peetha. In the sulphur acid vessel the prajwaalaka mani or flame producing crystal should be placed. In the rookshaka acid vessel the dhoomaasya mani or smoke crystal should be placed. In the manjishtha acid vessel the mahoshnika mani, or heat producing crystal should be placed.

In the places in the vimana where kitchens are located, and where sacred agnihotra fires are needed by passengers, keelaka sthambhas or pivots should be fixed. The acid vessels should be connected with power wires from the central pivot. The wires should be attached to the manis or crystals in the acid vessels. At the top of the central pole jwaalaamukhee mani should be fixed in the centre of chumbakee keela with glass covering. On either side of it sinjeeraka mani and dridhikaa mani should be fixed. From each mani a wire should be stretched from the top of the central pole and fixed at the granthikeela at the foot of the pole. From there up to the cooking spots and agnihotra spots, a circle should be formed like a kulya, and metal tubes should be fixed therein. Wires should be drawn through the tubes to the fire places and fixed to the kharpara metallic pattikas therein.

First the bhadramushti keelaka should be revolved. The acid in the vessel will become heated. The heat generated in the rookshna acid will pass into the manjishtha mani, and generate smoke in the mahoshnika mani. By the force of that acid intense heat will be generated. And by the heat generated in the sulphuric acid vessel flames will erupt in the prajwaalika mani. The smoke, heat and flames will pass through the wires to the sinjeeraka, dridhikaa and jwaalaa-mukhee manis. Then the chumbaka wheel should be turned vigorously, whereupon the smoke, heat, and flames will reach the key at the top of the central pole. And on that keelee being turned, they will reach the central switchboard keelee at the foot of the pole. When that switch is put on, the heat and flames will reach the metal bands of the cooking ovens and religious fire places, and generate fires. Therefore vyshwaanara naala yantra should be fixed at the navel centre of vimana. This concludes the constituent machines of the vimana.