Bharat Rakshak

Indranil

Levcons indeed help with L/D at high AoA. @Rishi, that graph was a from the following paper https://www.semanticscholar.org/paper/Aircraft-Performance-Improvements-A-Practical-Jebakumar/d73ea1324ae9e8b212010d80a9ab656194f0ea16 . But they come at the cost of weight. Basically, a LEVCON has to be held...

Indranil

I don't know the empty weight of NLCA. But there are some forward movement. Will let you guys know. Currently, they are getting ready for some tests at INS Hansa.

NLCA on Vikrant in a few months for sure. With armaments.

Indranil

It is earmarked for Mk1A mods, tests and certification.

Indranil · Re: Tejas Mk.1 & Mk.1A: News & Discussions: 04 January 2021 ^^^ +1

^^^ +1

Indranil

Is it far to say that HTFE and HTSE 1200 are the results of manufacturing the Adour and the Shakti engines respectively. I hope they also build an HTPE (Hindustan Turbo Prop Engine) based on their learning of producing the Garrett engines.

Indranil

Don't know. But when they say "Endurance:1000 secs", and engine starting capability at 0.4-0.8M, it points at an ALCM with a range of about 300 km range. Expect a weight of about ~500 kgs

Indranil

In 2016, HAL had issued a tender for D&D of a single spool turbojet engine. Top speed:0.85M Thrust: 320 daN Dia: 310 mm Length: 740 mm Operating altitude: SL to 8.5 km SFC: <1.175 kg/daN-h Restart capability Endurance: 1000 sec Dry weight: <44kg (Excl. LRUs & cartridge Starter) The plan outl...

Indranil

The final configuration of Helina/Dhruvastra is now clear to me. The sustainer lies ahead of the booster. The Booster uses a blast tube and fixed nozzle+JVC at the back. The sustainer uses 2 lateral nozzles. 40 such missiles are being prepared. https://pbs.twimg.com/media/E9AxZV3VcAAavi7?format=jpg&...

Indranil

CDG has more parking space, but that is at the cost of a runway and taxi-space. So can it maintain the same tempo of operations as Vikrant? For example, a jet can't take off while a heli is preparing for take off. Two successive jet launches have to wait for the CATOBAR to reset. On Vikrant you lin...

Indranil

CDG has more parking space, but that is at the cost of a runway and taxi-space. So can it maintain the same tempo of operations as Vikrant? For example, a jet can't take off while a heli is preparing for take off. Two successive jet launches have to wait for the CATOBAR to reset. On Vikrant you line...

Indranil

I am frustrated by this delay as well. I don't want to sound like a HAL apologist but I am also at a loss for the comparisons being parried here. Is large parts of America under a lockdown? Even when it is not, it is difficult to buy a car, truck, lumber etc. Also, HAL cannot work as SpaceX, LM, Boe...

Indranil

supply chain has has been badly hit by COVID. They are trying to get rollouts going from August again.

Indranil

Indranil, quick question for you. In one of the tweets from HVT on Tejas trainer spine....it has too many antennas, do we know what are those and what purpose they serve? Only public info please. Unknown to public it looks like LCA is adding capabilities. Does it have SAT com capability? I don't kn...

Indranil

^^^
Congratulations to team VEM.

Too many names in the report. Does it really matter who wished whom?

Indranil

Good video as always.

The only nitpick is that solid fuel doesn't burn back to front. It burns from inside to outside.

Indranil

The fins are visible in the picture above.

Indranil

dkhare wrote:On the Agni 1 Prime, does anyone see fins or spikes for a maneuverable reentry vehicle?

dkhare wrote: Great news on the Ku band AESA seeker for the Astra! Mk1 or Mk2?

Guessing: Mk2 and SFDR.

Indranil

Agni V had a CEP of <100 mtrs. Expect Agni Prime's CEP to be ~30m. Meanwhile, RCI's AESA-based KU-seeker for future Astra variants are entering production. TEnder for production of 16 units out. https://pbs.twimg.com/media/EtR9hcWVEAIIJq5?format=jpg&name=medium https://pbs.twimg.com/media/EtR9j6...

Indranil · Re: Indian Missiles News & Discussions - 17 Dec 2018 I just meant state of art.

I just meant state of art.

Indranil

Updated estimates:

Diameter: ~1.25 mtrs
Height: ~10 mtrs
Fuel weight: ~8.75 tons
Total weight: ~11 tons

Indranil

Oh yeah!!!

By the way, Agni P is as TFTA as they come! All composite motors, electro mechanical actuators, SoA guidance.

Indranil

1. My initial speculations for Agni P. Length: 15.7 mtrs Diameter: 1.4 mtrs Fuel loading: 9 tons (1st stage) + 2.2 tons (2nd stage) Payload: 500-1000kgs Total weight of the missile: 13.2 tons Max. Range with 1000 kgs: ~2000 kms. 2. If the first stage of Agni-P has composite casing (looks like it), t...

Indranil

Two more are going back to ITR. I expect them to be armed versions. SJha also indicating something to the same effect?

I think Panchi is also getting revived. Tender for 3-bladed constant-pitch propeller. Most likely to be integrated with the 65 HP Wankel engine.

Indranil

The other places can take hits and still survive. For example, if you get hit in the fuel tank it is okay.

Indranil

OT. I have been away, sucked away by the lure of Twitter. But I need to get back to my roots aka BRF. I have learned a lot from here and I need to give back some. 1. I want to have more discussions here. But here are my rules. I will only discuss technical issues. I will generally see myself out of ...

Indranil

1. You can make the internal bay fatter, but you have to push it through air. So, it is a case of use sometimes, but pay always. There is no right answer. For a medium aircraft, IAF and ADA sat down and chose the balance between aerodynamic performance and stealth. 2. All moving vertical stabilizers...

Indranil · Re: Tejas Mk.1 & Mk.1A: News & Discussions: 04 January 2021 OBOGS on PV

OBOGS on PV

Indranil

V_Raman wrote:Mahindra should release a consumer version of this - like Hummer - will be bada**

A lot of people were looking for a civilian version of MAhindra Axe.

Indranil

• Empty Weight: 7,040 kg • Take-Off Clean Weight: 10,330 kg • Maximum Take Off Weight: 14,240 kg • Maximum External Payload Capacity: 3,910 kg These are official numbers from ADA brochures. Difference between CTOW And Empty weight is 3290 kgs. Of these, 2485 kgs is internal fuel. About 800kgs for pi...

Indranil

rsingh ji,

You are right. As far as airplanes go, these are simple airplanes. Therefore, isn't it a pity that we as a country can design and manufacture such simple planes?

Indranil

NAL just rolled out Hansa NG. There's already LOI for 30 aircrafts. Cockpit already certified. https://pbs.twimg.com/media/ExyYuzuVIAkAdlp?format=jpg&name=medium https://pbs.twimg.com/media/ExyZ0YIVcAMQkuW?format=jpg&name=medium https://pbs.twimg.com/media/Exya5_OU8AQ9G2s?format=jpg&name...

Indranil

IAI is pushing. They made the modifications. Good to have it qualified. If there is an export customer who wants it, they can have it. We also retain the capability (at the minimum as a bargaining chip). Also, we have Python 5s as part of Spyder. So ....

Indranil

Indranil: not sure if I understood. Do you mean Astra will only be integrated with Mk1A (or) will it be integrated with Mk1 in the same timeframe as Mk1A integration? But the Mk1A is at least 3 years away from being produced. Is there any timeframe that you are aware of for Astra integration? And c...

Indranil

First flights:

SP-25

SP-26

Indranil

First flights:

SP-25

SP-26

Indranil

Kartik wrote:Supposedly, Astra integration with Tejas Mk1 is going on.

They are planning to finish qualifications with Mk1A qualifications.

Indranil

Maan gaye apki paarkhi nazron ko!!!

Indranil

Sounds like what Tejas would've been without the need to match the MiG-21 footprint exactly. But a question, Indranil: why the splitter plate intakes? Forget DSI if one were to look at 4G a/c, they seem more like the Hornet rather than the Super Hornet. Even the KAI T-50 has no splitter plates. Wil...

Indranil

Kartik, I agree with you that the Mirages are gorgeous. That's what 5 generation of iterations buys you. Mk1 does not have that refined lines. And I told these to people who fly and developed the Mk1. It is like telling somebody that their child is ugly. :D How I wish there is an Mk1B. 0.5mtr longer...

Indranil

Not sure which serial number since it's been erased, but nevertheless a nice pic https://scontent-lax3-1.cdninstagram.com/v/t51.2885-15/e35/s1080x1080/150871706_337218430985835_1260649437221138364_n.jpg?tp=1&_nc_ht=scontent-lax3-1.cdninstagram.com&_nc_cat=103&_nc_ohc=N1xJXf1c6X4AX-pZ-nT...

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