Bharat Rakshak

sankum

1.5 lakh people are dying every year on Indian roads and growing 10% each year. Driverless car may be 10-15 years away but can cut this death toll to less than 10%. Private cars can go of roads and replaced by 10% driverless cars leading to less congestion and economic benefits. It is just like oppo...

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Swiss firm not extending maintenance deal for India's PC-7 trainers

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Kamov military helicopters to India will begin within two years of the signing of the contract

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Austin wrote Indian Navy launches hunt to acquire 110 helicopters in $5B deal ^^ Twin Engine , 4.5 T class exactly sounds like Dhruv but they want to import another type ? Same rerun of 4.3T naval Panther vs 5.5T naval Dhruv saga for Coast Guard with full paid news mafia at works. The requirement of...

sankum

The LCA 16/year production line will not remain idle after 2025. It is just not economical to close the production line. Either LCA mk1a or mk2 production will continue. While SE fighter production @12-20/year in 2020-30 timeline if 120nos-200nos is the likely order while Su 30 line will close down ...

sankum

120nos single engine fighter in 2020-30 timeframe @12/year plus maybe 44 nos more rafale in 2022-27 timeframe @ 8/year and 123 LCA by 2025 @16/year and maybe 80more LCA in 2025-30. For the Su30 mki line will close down in 2020 after 272nos production run and FGFA may be only on by 2027 or later @12/...

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Just 24 nos ASW ALH is required in addition to 16 ASW ALH ordered to be delivered by FY2020-21 which can be delivered in 2 years time if 16nos Sea KIng42B are upgraded to last till 2025 till ASW IMRH kicks in. If Sea king 42B are to be retired than 40 nos more ASW ALH for a total of 56nos will be re...

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After supply of 3 development sets production run for 42nos. 2.3.2 Production Phase : 2.3.2.1 The total production requirement is approximately about 42 Sets of SURVEILLANCE RADAR SYSTEM spread over a period of ~ 4 years after successful completion of development phase of project based on receipt of...

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ALH radar tender

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I think that the 100nos NLUH requirement is redundant in face of more capable Dhruv Helo ASW variant order which will go on next gen ASW corvette also. The NLUH was to be equipped with small weather radar with secondary sea surveillance capability and no sonar capability while ASW Dhruv is to be equ...

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I just read the RFP for ALH radar. Intergration with sonar sensors diagram is given and the total order is for 42 radar sets for 32nos for CG and IN helicopter on order and may be 10 nos for old IN and CG helos or just spares. It is confirmed that no 360 degree surveillance is envisaged and we will ...

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Indranil for ASW version of Dhruv the above radar will do or 360 degree coverage will be developed?

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JayS, In LCH HAL has increased take off to 5.8T, so it can be taken that for Dhruv MTOW has been raised to 5.8T. For naval version category Cat A performance i.e, safe take off with one engine operative with old engine was 5.3T which can be expected to be raised to 5.8T with Shakti engine. If the MT...

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Rafale cant go on INS Vikrant unless lifts are broadened to 12m from present 10m because Rafales wings cant be folded.

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In the heart of the iron beast, INS Vikrant

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Army looks to fast track process of acquiring anti-tank missiles for Rudra helicopter The previous tender had to be scrapped in 2015 as the twin-tube solutions could not be found and having a four-tube launcher would have resulted in the boom touching the ground while landing as the Rudra is not a ...

sankum

The DHRUV production at Bangalore at max produces 24 ALH/year and second line is coming up in Kanpur after which it can be expected that Bangalore line will start producing LCH and combined production is unlikely to exceed 48/year. It is not main gear box but reduction gear for each engine. Thus 110...

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235 ALH have been delivered by Jan 2017 of approx. 200 to defence. the order stands for IA= 40+105+40=185 IAF=22+54+45=121 IN=8+1+16=25 CG=4+16=20 TOTAL =351 nos OTHERS say 50 total=400 nos. Engine spare are 25% of required. Same may be with gear box also. 280+221=501 nos final expected order. Minim...

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The above production plan for lca is already delayed by a year and the delay will be covered only when rate goes up to 25 lca/year.

sankum

The economics of scarcity since Independence have cost us 30years of lack of development of 70 years. Our builders work on 50% margin. Will this change that quickly?

sankum

Data from Defexpo 2001 mig 29 prototype could fly from 110m runway on carrier with 18.55T with 650Kg payload and from 190m with 22.4T with payload of 4.5T with 16.6 T thrust engines. Mig29k has larger wing and take off mass of 24.5T with 5.5T ( with 18T thrust )payload from full length runway on INS...

sankum

On extra large maybe transonic external fuel tank papers are already out on 1332lt optimized EFT may be using the entire 1200Kg weight possible on both inward wing stations. On supersonic tank 710lt centreline EFT paper was out. So far no paper on large supersonic EFT for inward wing stations but ta...

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As per IN RFI for INS Viramaditya(inferred) it is 13 degree skijump with restraining gear launch distance @125m, 190m and 195m while for INS Vikrant it is 14 degree skijump with launch distance at 144m, 203m and 213m. As per AI2017 reports in this forum NLCAmk1 is 800Kg heavier than LCAmk1 so can be...

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The aircraft is thrown up with the minimum required velocity so as to allow it to use thrust of engine and partial aerodynamic lift to accelerate to required velocity. If it is served by 14 degree ramp why 45 degree ramp is required. The vertical velocity imparted is= exit velocity sin14. Take the c...

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Additional LCA Navy Fighter (NP6 & Np7): The cost element for the 3 additional aircraft (NP5, NP6 & NP7) has been provided by HAL and the cost committee duly constituted has had several discussions. This is expected to be finalised by end 2016. HAL has intimated that NP6 will be built in To...

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The main contributors to improvement in LCA(Navy) Mk2 have been identified as higher thrust engine, an increased wing area, an area ruled and streamlined configuration, lighter landing gear and structure, and improved systems layout towards better safety and maintainability. Flight control features...

sankum

My estimate is that for 30knots WOD NLCAmk1 should have MTOW of 13.5T (payload 2.9T) and NLCAmk2 MTOW of 16T to 16.5T(payload of 4t to 4.5T for empty weight guess of 8T). For 20knots WOD I have my doubts.

sankum

The above is a very simplified simulation of ramp take of. Just see the AoA graph (First graph in the video at 26.40 min) "Designing And Testing Flight Control Laws Of Light Combat Aircraft [LCA] Tejas [Aero India 2013] " The angle of attack is maintained constant at max AoA of 19.5 degree...

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It is from the slide in below URL for NLCA WOD is given as 15-20 knots while Cmdr Balaji said that it is relaxed for 57 fighter requirement. Automated Take-Off From Aircraft Carriers For India's Naval Light Combat Aircraft [LCA-Navy] As far as three distance in RFI it is 125m, 190m and 195m with 13 ...

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The only advertised slide for STOBAR operations is for Sea Gripen were MTOW is limited to 16T for STOBAR while for normal NG version is 16.5T.

sankum

The IN RFI for 57 fighters is puzzling. IAC2 will not see service before 2030. Rafale will nor fit on either INS Vikramaditya or INS Vikrant as the wing span is around 11m with no wing folding and F35C with low thrust to weight ratio will not fit in STOBAR operations. Only Candidate is F18E/F for wh...

sankum

The above is a very simplified simulation. As the graph in below link shows the maximum AoA is maintained by NLCA for approx. 5 sec to maximize performance while in the above simulation its start decreasing at half the pitch rate as soon as the max. AoA is reached. Automated Take-Off From Aircraft C...

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Armed forces lost 48 aircraft, 21 choppers since 2011 Defence Minister Arun Jaitley, replying to another query, said the ADA is also developing MK-II version of LCA for the Navy with a higher thrust engine than the one used in MK-I version of Tejas. “Final Operational Clearence (FOC) of LCA (Navy) ...

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Thanks JayS and Kartik

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A version of ALH with stretched fuselage, uprated transmission allowing higher MTOW and payload while keeping the overall dimensions nearly same can be built for low altitude operations.

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It is ASW version of Dhruv for IN with associated sensors and weapons and therefore Rs8000 Cr. Bye-bye sea hawk unless Sea King 42B are retired.

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ASW version of naval Dhruv 16nos to be inducted by IN in 2020-22 timeframe. Providing a major boost to the maritime security capabilities of the Navy and Coast Guard, Prime Minister Narendra Modi has cleared a proposal worth around Rs 8,000 crore for acquiring 32 made in India ALH Dhruv helicopters ...

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Final aim is increase the Lca production to 25/year and 125nos can be produced in 2025-30.

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LCH-3-View-dimensions

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There was a news report that by Jan 2017 231 ALH has been produced while a earlier news report was 205nos ALH have been produced by Nov2015.

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