Bharat Rakshak

neerajb

A few days ago, the aircraft successfully completed the six-turn spin (towards the right), recovering from an uncontrolled flight using conventional methods. “The next stage of trials will be critical as it involves testing the HTT-40’s spin behavior in the left direction, which is far more complic...

neerajb

Too much importance being given to Python which I believe is just another programming language and a relatively lousy one. All the ML/DL that it is being credited with is actually the handiwork of frameworks like Tensorflow which happens to have a C++ core and expose the Python APIs so that not so t...

neerajb

twitter Is that Github link pointing to snippets of source code of software that runs/controls CY2? It was coded in Python? Wow, just wow! :eek: It is simply reading data from some raw files and generating the plots. Python is being used here for visualization and not to control CY2. If you are loo...

neerajb

It is my understanding that they are statically stable. There is no need or benefit to go otherwise. Remember that stabilizing under software control is energy inefficient. The constantly moving control surfaces cause extra drag etc. Even the MAX should be stable normally, but go tits up and stall ...

neerajb

Guru log, what's your take on Tata motors for long term i.e. 5-10 years horizon? It has hit 52 week low twice and DVR is trading at 120 levels now. With their current/upcoming product lineup, I don't see any hindrance in Tata motors gaining the top spot.

neerajb

Singhaji, high bypass turbofans efficiency stems from the way they generate thrust and their operating envelope. In commercial high bypass engines, 80% of thrust is generated by fan. They have more stages in LP turbines than military leaky turbojets (which nowdays have single stage for both LP and H...

neerajb

Nexon SUV & Tiago hatchback help Tata Motors beat Honda in India Tata Motors has beaten Honda yet again. Tata sold 16,475 cars in October 2017 while Honda could sell only 14,234 cars in the same period. The Nexon compact SUV and the Tiago hatchback are propelling Tata ahead. This is the second ...

neerajb · Re: LCA: News & Discussions: 15 August 2017

neerajb

I agree. Recently went with a friend for test driving Baleno and Tigor. While holding the hood and doors, He remarked that they are much flimsier in Baleno and felt heavy in Tigor. But honestly if the chassis is strong, thin panels (to save weight) should not be a problem. Even the newer nexon is ba...

neerajb

If you ask me, the recurring issue with TATA is weight. There cars are heavy as compared to competition. For example Zest is 1135 Kgs, Dzire weighs 895 Kgs, Amaze 940 Kgs. This weight means low fuel economy though not by much. Zest Vs Dzire fuel economy differs by 1/2 Kmpl in city. But this weight a...

neerajb

They are not modifying the airframe in any way. It has been frozen for Mk1. They are only clearing test points. One of the test points relate to a feature which was seen on early wind tunnel models but not in real flight testing. This led to somebody proposing that the said feature was never implem...

neerajb

Neither EV nor ICE are meant for water fording. Regarding normal mansoon operations, we have erikshas merrily operating 24X7/365 days without any problems. Also ICE vehicles fording capability is overrated (not talking about SUVs but normal city cars). Air intake is at grill level, 2-3 feet above gr...

neerajb

As pointed out by JayS, afterburner does not put that much stress on engine as the core combustion does on combustor, diffuser/turbine nozzle/stator and turbines. Temperatures in both core and AB are high but pressure is relatively lower in AB and all fuel added goes towards increasing the exit velo...

neerajb

Currently the only electric cars available in India are Mahindra e2o plus and Mahindra E Verito. Both have claimed ranges of more than 100 KM per charge. e2o comes in two versions with 110 and 140 Km per charge range. Tata is launching electric versions of Tiago and Nano, both with around 100 Km ran...

neerajb

Even many small cars have auto engine off and restart for tradfic stops these days like nissan micra A good plan needs to be in place how to prevent ppl from just throwing ev batts into the nearest garbage dump knowing our law abiding junta esp bus and taxi drivers. Make it 1:1 mustto hand in old p...

neerajb

I don't know how many amps does a typical indian house is wired for though. This would depend on the electric panel and connection to power company. In Delhi, BSES sanctioned load for domestic consumption starts from 1.3 KW and goes all the way till 10KW. They increase the sanctioned load (and secu...

neerajb

https://www.team-bhp.com/news/scoop-tat ... coimbatore

Scoop! Tata Nano electric spotted testing in Coimbatore

neerajb

http://www.financialexpress.com/auto/ca ... on/849093/

Tata Tiago EV: Tata’s first electric car with 100 km range showcased, to launch in India soon

neerajb

Tata needs a hit badly...Tiago/Tigor generated a lot of hype during launch but did not strike well with consumers. Mainly, the reason was underpowered engines and subpar cabin refinements. Apparently, both of these have addressed in the Nexon... Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun 2016 ...

neerajb

Saar I am not saying Tata is king of the hill. My only contention is credit should be given where it is due. Tata is responsible for the poor brand image no two ways about it but it has improved by leaps and bounds in terms of quality of products. In fact their cars are as contemporary as others and...

neerajb

By generalization I was referring to "cheap plastics" comment. I don't see it in my car + other tata cars that I see, so definitely a generalization for me. Yes if you are referring to Indiacas of yore than you are right. Again you are wrong when you say Tata banks on feature less cheap ca...

neerajb

Historically yes but like everything else Tata is changing as well and in a good way. Just look at the Nexon and it is hard to believe that it is a Tata. Regarding interiors, new launches have contemporary interiors just like others or better. In Zest, the infotainment system is miles ahead of compe...

neerajb

@rahulm Please specify which models are you referring to in relation to cheap plastics. I have been driving zest for over an year now and am more than happy with the car. In fact I am amazed at the value which I got at this price point. It does feel premium compared to all the competition including ...

neerajb

MiG-29k is keeping navy guys in Delhi busy on weekends as well, managing paperwork for its maintenance related issues.

neerajb

Gurulog, I think we are getting confused here. Couter-rotating spools are fine, but we don't have any counter-rotating stage engines in production?

Cheers....

neerajb

I would like to contribute in the tech part. Though I come from mainframe/C++ background but can learn new things to make BR better.

Cheers....

neerajb

Why did it turn left before going down? Maybe it was not part of the schedule to go outside of the runway? Trainee tried to correct it by turning left but the momentum carried it beyond that point and IGE to OGE caused it to loose lift rapidly and before the situation could be corrected it crashed.

neerajb

i think they are designing the trainer first & the single seater is a modified trainer. that back of the canopy (covered) is basically the second seat. Actually I was wondering why did they faired it over and not just paint half the canopy. But this pic posted by Sancho shows that the canopy is...

neerajb

I didn't get why they partially covered the canopy? They could have done something similar to Mig-29K/KUB i.e. just put a fuel tank/equipment in place of rear seat under the existing canopy. Are there any benefits of this approach?

neerajb

@negi This sudden smoke is visible not only during turns but any time the aircraft makes sudden maneuver. It's visible during the descend part of the vertical loop as well when the aircraft is pulling up at high AOA. It's more common in older planes like Su-27/MiG-29 but I have seen that in F-22 as ...

neerajb

the flicker probably means too much fuel is being injected to be burnt clean inside the combustion chamber?...so fuel rich mixture is producing that in the exhaust zone. but at steady speed, a constant fuel flow would be the norm and such effects should not happen in a tfta engine. That flicker ind...

neerajb

I don't think Tejas needs an APU when it has JSF. They can very well make the JFS run the generator via AMAGB and a clutch mechanism. Engine bay cooling could be one reason but isn't it protected by a firewall anyway? Check this image posted by Indranil, it shows the innards of that hump. Looks like...

neerajb

Having said that: 1. I do not know since when the JFS became part of the line-up. That will be great information. It just clicked me that AM Rajkumar in his book 'The Tejas story' mentioned that after the initial smoke issues with JFS, he instructed the team to make it euro 3/4 compliant. He was as...

neerajb

Thanks. Makes sense, since accessory gearbox in GE 404 is mounted at the bottom, so the JFS is colocated with that.

neerajb

IR IMO the dorsal scoop is for jfs. Tejas has 110 kW jfs unit meant to start the engine only. The free power turbine is connected to AMAGB which then powers the HP spool for starting the engine. I don't think that there is enough space for jfs aft of MLG bay and beneath the engine. Moreover the only...

neerajb

It already has the Iskra, MiG-23 and 25 on display alongwith An-12, Fairchild C-119 and the latest addition Tu-124.

neerajb

Sameer Saar today is 8 Oct yet no update on play store? Eagerly waiting for the full game.

neerajb

Phones of MH370 passengers ringing, online accounts active, claim relatives

neerajb

4 passengers not showing up for boarding after check-in is a big number. The check-in luggage in such cases is offloaded (which is a pretty standard routine in all the airlines after 9/11) and the passenger marked as offload. Noshow is different. Airlines try to avoid offloading pax because it leads...

neerajb

Malaysia Airlines plane missing at sea off Vietnam, presumed crashed

Flightradar is showing this:

http://www.flightradar24.com/data/fligh ... 0/#2d81a27

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