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Tejas LSP-8 is a pilot's delight: ADA chief

janon

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The limited series production (LSP-8) version of India’s Light Combat Aircraft Tejas, is said to have incorporated all features sought by the Indian Air Force (IAF), so that it qualifies for the initial operational clearance (IOC).

Aeronautical Development Agency (ADA) head P S Subramaniam told Express that Tejas LSP-8, the last aircraft from the test flightline, is tailor-made to suite pilot’s needs.

“All designs are final. All systems are as per the final IOC standards and have matured with the aircraft,” he added.

The ADA head said building of LSP-8 aircraft, its first flights and subsequent tests will be the last stepping stone towards the programme entering the series production phase. The IAF has placed an initial order of 20 Tejas.

According to Subramaniam it has pressure-refueling capabilities. Meaning the entire aircraft the LSP-8 can be filled with fuel in just 5-6 minutes as against the 30-minutes taken for gravity filling.

“Tejas LSP-8 is an all-weather, day and night capability fighter and with very maintenance-friendly features. It is an aircraft built based on the needs expressed by test pilots,” he said.

He said the pilot-vehicle interface features supported by avionics software are excellent in LSP-8 and as desired by the users.

“The new aircraft is very robust with reliable flight control system. The aircraft has good compatibility with ground support and ground-handling equipment. I can now confidentially say that all that is required for an aircraft to get inducted into the Service is built into LSP-8,” Subramaniam said.

When asked whether the induction of Tejas into the IAF will further slip, considering that the IAF pilots might come back with more requirements after the user evaluation trials, the ADA chief said: “The feedback what we are getting from the test pilots who have flown Tejas is excellent. Every stage we had pilots closely working with us.”

Tejas LSP-8 is a pilot's delight: ADA chief - The New Indian Express

(As a side note, this Anantha Krishnan is one of the better defence journalists in India. He gives relevant information all the time, with no masala, and no references to Pakistan or China.)
 
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The reason I posted it as a new thread is because it contains this new info about pressure refueling, that we did not know about.

This new feature, apart from increasing the range (due to more efficient fuel loading), will also bring the Tejas' turnaround time to almost Gripen like levels. This quick refueling and rearming was touted as a major force multiplying feature of Gripen during MRCA trials, and they used to boast about it endlessly. Good to see that Tejas has incorporated this feature. During wartime, this means more sorties per aircraft in the same sector, whether for CAP or CAS. If Tejas can do multiple sorties instead of one in the same time, think about what a force multiplier it would be.

It is a pity that they are not ordering at least a hundred MK1s and retiring the 2nd/3rd gen migs immediately. So what if it is not in the same league as the Rafale or MKI? This is a classic case of the "best" being the enemy of the "good enough". And every now and then the IAF sounds warning notes about declining squadron numbers.
 
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(As a side note, this Anantha Krishnan is one of the better defence journalists in India. He gives relevant information all the time, with no masala, and no references to Pakistan or China.)

Go to Anantha Krishnan site:

Tarmak007 -- A bold blog on Indian defence

The reason I posted it as a new thread is because it contains this new info about pressure refueling, that we did not know about.

This new feature, apart from increasing the range (due to more efficient fuel loading), will also bring the Tejas' turnaround time to almost Gripen like levels. This quick refueling and rearming was touted as a major force multiplying feature of Gripen during MRCA trials, and they used to boast about it endlessly. Good to see that Tejas has incorporated this feature. During wartime, this means more sorties per aircraft in the same sector, whether for CAP or CAS. If Tejas can do multiple sorties instead of one in the same time, think about what a force multiplier it would be.

It is a pity that they are not ordering at least a hundred MK1s and retiring the 2nd/3rd gen migs immediately. So what if it is not in the same league as the Rafale or MKI? This is a classic case of the "best" being the enemy of the "good enough". And every now and then the IAF sounds warning notes about declining squadron numbers.

A difference between a gravity drop and a pressure loading does not mean increased range - unless the volume/mass of the fuel is higher than before.
Its a time saving action.
BTW Pressure loading requires special nozzles........
 
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A difference between a gravity drop and a pressure loading does not mean increased range - unless the volume/mass of the fuel is higher than before.
Its a time saving action.
BTW Pressure loading requires special nozzles........

It will mean a marginal increase in range, because the fuel tank can be completely filled with no air cavities at all, in the case of pressure loading. In gravity drop, some part of the fuel tank will need to remain unfilled, to prevent spillage while refueling.

Also, I believe (not sure though) pressure-loading is necessary for in flight refueling.

Yes it requires special nozzles, and the good news is that these nozzles have been designed and fit onto LSP-8, and will presumably be a standard feature on the SPs. So it is yet another feature they have added, to the already feature rich Tejas.
 
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It will mean a marginal increase in range, because the fuel tank can be completely filled with no air cavities at all, in the case of pressure loading. In gravity drop, some part of the fuel tank will need to remain unfilled, to prevent spillage while refueling.

On above I let you rethink on what you have written. Thats not how the fueling method affects the range of an aircraft


Also, I believe (not sure though) pressure-loading is necessary for in flight refueling..

Mid air refueling requires pressure loading (energized pump)
 
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Where sir ? Please post it here

PFB the image of LCA LSP-8



SOURCE
 
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