Bharat Rakshak

GeorgeM

All these people like this Sidharth here present themselves as level headed, liberal, concise, erudite, objective etc etc. But ask them if they have anything like a fact to offer instead of their opinion and dreams of "Idea of India", they draw a blank. Jamwal-ji, spare that rod from me p...

GeorgeM

And did you complain when Congress were the largest single Party? I don't seem to recall any statements from your side about diversity & great traditions!!! You were not around when I complained. Suddenly trolls masquerading as level headed people air drop. But are too dumb to even hide their p...

GeorgeM

I think this thread needs to sober up, it’s drunk too much with cool aid and missing many signs. Reading only news and opinions that fit this world view is not good.PP or other twitter handles are only parroting their world view and seeing what they want to see with their biases. BJP is not going t...

GeorgeM

prasannasimha wrote:
rkhanna wrote:
Looks like lens flare?!
There are two videos from different angles - not a lens flare

So the R73 hit the F16 in a tail chase ? That would make it a very difficult sell considering so many PAF in the air.

GeorgeM

The printed components can withstand all the heat and use etc or just for concept testing? Will they be used in regular engine once a working prototype is produced? Metallic 3D printed part has the characteristics of a forged part. Their strength (UTS and Yield ) are better than cast. The defect ra...

GeorgeM

8 December marks one month of demonetization. Has the media figured out the real impacts or still going atrocity reporting? Probably been busy with Pearl Harbor bombing anniversary writeups. have you guys read this. Great article, sector by sector impact. Published Dec7th, a month after DEMO. The b...

GeorgeM

If one were to be a guessing person, could one venture a guess that with kaveri as it constitutes now, if mated with LCA, the plane would take off, fly, fire weapons and land? And if it does, could it be exported to some airforces that have much lower expectations than IAF and countries that have m...

GeorgeM

Many moons ago someone who is at the helm of Kaveri development once told my barber that Russia tests showed.. 1) aeroelastic related issues between compressor stages that degraded its efficiency. Apparently one set of compressor blades were starving. (This is roughly what I remember now) 2) Hot sec...

GeorgeM

... Now wrt your other points wrt badly managed program etc - Kaveri as a program to develop a modern-turbofan for LCA is a failure, no doubt about it. But that doesn't mean it was a badly managed program etc - I'll not repeat all the points that has been discussed multiple times here over the year...

GeorgeM

[ What a load of horseshit (no pun intended). Please provide specific examples and details of which big 'horses' have escaped. Horses that left upto demonetization ! Not after Also, where did the PM say that no further measures will be taken. Based on his speeches where he has hinted at more action...

GeorgeM

[ I would suggest you read previous posts, particularly those by Suraj. These things are discussed already. No, not all BM is in liquid cash, most is locked in RE/Gold within the country. But over the time, the valuation of those things will fall. Also not all BM is idle money, some of it comes out...

GeorgeM

Cashless economy is not equal to more credit cards. Spending from saving account using debit card is also plastic money. As such Indians did not need credit cards to come to India from West to teach us how to operate Credit system based economy. We have always had monthly credit system for almost a...

GeorgeM

You are completely wrong about black money size. My cousin is an IAS officer and my uncle was in IPS. He worked in enforcement directorate. Govt own secret estimate in MMS times was 50 pct bare minimum. IAS and IPS grapevine estimates are 100 pct. You have no clue about the scale of wealth transfer...

GeorgeM

Grievance Description : I support this move of demonitization unconditionally. Now that the situation is better, a few points that could have been done without tampering with secrecy.It may not be too late and still can be done. 1. UPI apps for all mobile OS and not just android, released beforehan...

GeorgeM

Taxes wise, boss I file income taxes in 3 large countries and let me assure you that Indian tax rates are the lowest. If you are complaining about Indian IT rates, you have no idea about the world (and please don't compare with islands of prosperity like Dubai or Singapore). I think the level of co...

GeorgeM

ALL black money held in CASH/currency became white(part of formal system) After midnight of 8th Nov. Does NOT matter if it gets deposited in the bank or not. Lets start with that. Yes, that is the correct thinking. But the same thinking is not what the 'euphoria' folks have. They think all black mo...

GeorgeM

Do not worry, you are just passing a tough phase, once that is over, you will enjoy Amruth. "The darkest hour of the night comes just before the dawn." From now onwards, your income-expenses both will be white and you can be proud of it. I think we are being overly optimistic here. With e...

GeorgeM

As regarding the speed warning beeps, if I ever get a car with that, I will immediately disable it or yank that stupid sounding alarm device and toss it out. If the authorities ask me questions about that device, I will deliver a well placed thapaard in the right region and tell them to mind their ...

GeorgeM

Exhaust should not be an issue. Typical exhaust temperatures for Diesel engines are around 1350F (~740C) with turbo charging. Assume Turbo consumes some of the energy (~20-30 %). Assume aviation exhaust temperatures similar to diesel. But about a foot away from the exhaust stack, the temperature dra...

GeorgeM

Sidharth, I believe IR doesn't have turn tables in major stations to position the loco in short hood forward. At least in WDP-4, due to the radiator's flaring design, there was an obstruction of track view for loco pilots and IR limited the max speed to 100 Kph (or 105 ?) in Long hood forward. I be...

GeorgeM

Yep, Sidharth, will DLW be modifying the GE locomotive for passenger operations by including a dual cab & higher max speed later on just like they brought out WDP-4D? Though the operation cycle for both are different, these locos are frequently used interchangeably between freight and passenger...

GeorgeM

Has GE mentioned which locomotives will be supplied to India? The press articles mention both 4,500 & 6,000 HP locomotives. Will it be based on GE Evolution series (4500 HP models) & AC6000CW (6000 HP models)? AC6000CW had lot of reliability issues which led to its premature retirement from...

GeorgeM

I do not disagree with a lot of facts that you have stated. But I beg to differ on your conclusions. .... Because India has a lot of potential, India will necessarily progress. I agree with the premise, but not your conclusion. Indians have always had a lot of potential, but historically, it has al...

GeorgeM

NPI is a money pit. So if you are the head of HAL, and presented with 2 option.. 1: spend millions into investing on a high through-put production line for an aircraft that does not have equally justifiable orders. Develop new process, supply chain, develop end of line testing etc all the while keep...

GeorgeM

prasannasimha wrote:How do they have a count down for an interceptor launch? One thing is we could see the angulation of the launch platform changing while the count down was occurring.

Saar please.. The count down and the "angulation" is for the target missile.

GeorgeM

while I cannot claim to understand most of the stuff above, what is the realistic exec summary of a engine that can be used in 2018 given our domestic level and prospects of foreign collab? ... are we stuck with a 1500hp single engine + APU (for AC and electro-optics) or this dual engine thing has ...

GeorgeM

You will need some engine to take 230 bar of boost pressure! Typically, for heavy duty diesel engines the boost pressure is below 5 bar. As per wiki, the boost pressure for the hyperbar system is 7.5 bar. 230 bar of peak cylinder pressure NOT boost pressure. :eek: Read my comment and you will see t...

GeorgeM

vasu raya wrote:Frech Lecerc is in service, so Hyperbar is not a 'potential' thing.

I meant 'potential' for higher in cylinder pressures in future when the technology allows disel engines to handle higher cylinder pressures.

GeorgeM

have been reading the issue of the 2 engine setup for the future tank. Reading what is posted on the thread. It seems that hyperbar is planned. as the basic requirement is identical. I think the hyperbar engine is a bit different. See the line below where the engine's turbocharger is completely rep...

GeorgeM

Turbocharger does not provide 30% hp by itself; it actually helps the engine produce more power by cramming more air into the engine cylinder. More air in the cylinder requires more fuel and that is what increases the hp. I guess the fundamentals are well understood in this discussion. If you take ...

GeorgeM

...one deviation is we don't want to switch between TC and DE as power requirement spikes above 40% but have the DE augment the TC so that combined rated power of 1500hp is acheived. Thank you Vasu Raya. Yes that is exactly how it works, but I guess my long winded description might have convoluted ...

GeorgeM

Engine concept if you really insist on dual engines. On most modern large engines, Turbo provides about 30% of rated power. This contribution % reduces at lower powers so much so that at idling, turbo contribution is 0%. But the key is to think of Turbo Charger as a separate engine. One that shares ...

GeorgeM

Diesel engine acting as a generator with electric propulsion + regeneration systems? you can two small engines replacing one bigger one if needed. If one takes a 1000 HP Diesel engine and its equivalent alternator, one will find that the alternator weighs about the same as the engine. Then you add ...

GeorgeM

if we take a truck on the Golden Quadrilateral, say it maintains a average speed of 80kmph, the turbine can be run for that load, any surge can be handled by the diesel engine + charged battery bank while slump can be directed to the battery bank. The amount of time the diesel engine is engaged is ...

GeorgeM

Thanks Karan. I missed to soak in the paragraphs you highlighted. That approach should help. DRDO can provide funding plus solution at a fundamental level - material science, control system, thermo-structural analysis, etc. Provide funding to a team from Kirloskar or Tata, with suppliers etc for x y...

GeorgeM

The below comment is exclusively for large engines. One more thing. Foreign parts will have to be there. Esp pistons, cyl head, valve seat, coated valves, hi pressure fuel system, turbo charger etc. At such hi rpm (1900) valve train is the first to fail and we dont have good valve train expertise in...

GeorgeM

Why use multiple engines when you can do cylinder deactivation? Easier no? Exactly. This route of multiple engines have been taken up by many companies for different applications. For some it works. Like in the refrigerated trucking industry where the truck has to run the main engine while parked t...

GeorgeM

Question to Gurus- where is the LCA's canon placed and has the GSH 23mm cannon ever been fired from LCA? double barrel under starboard intake. surprisingly, I couldn't find a piece that talked about cannon firing. although articles indicate it has been done. The cannon appear quite setback towards ...

GeorgeM

So what happened to Dr. Shiv. We do not see him anymore in BR

GeorgeM

The article heading is INS Cheraman (After a Mallu king who converted to Islam) Did he mean as in mallooo speak - cheruman? then he must be jailed immediately Can you elaborate? Being a mallu and a history buff I got to tell you that this is humbug. The Cheraman that converted to Islam and Cheraman...

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