chinese8107:


asia is traditionally Toyota pick-up truck market,why would they chose TATA? even a second hand toyota engine is more reliable and effectient than most US engine,and I don't think TATA can beat toyota,there must be some other reasons rather than technical advantages.

lol
this should give u a clue

Tata Daewoo (south korea)
Tata Jaguar Land Rover (UK)


Tata Technologies Limited (TTL) provides design and engineering services to the automotive industry. It is headquartered in Pune (Hinjewadi) and also has operations in London, Detroit and Thailand. also Incat International which specialises in engineering and design services and product lifecycle management in the automotive, aerospace, and engineering sectors is a wholly owned subsidiary of TTL.

Its clients include Ford, General Motors, Honda, and Toyota.

nemesis2u:


i am really at loss of words at ur reply

anyways none of the competitors passed the competitive trials and the tender was cancelled.

army is expected to issue a new one again with almost same specifications.

total projected requirements 4000-5000 , maybe end up double the nos.

few months back they ordered 4000 light GP vehicles taking tally to 10000 plus

I compared to other vehicles like the many produced in Africa.


Cancelling tenders and delying isn't unusual in those parts of the world.

Look at the howitzer tender.

gypsies, these have been in service for a long time. very well suited to indian conditions.....

Imagine an aircraft as big as this

[img]http://qph.ec.quoracdn.net/main-qimg-28f25b30e8b4965375304a92498c5146-c?convert_to_webp=true[/img]

With a RCS as small as this
[img]http://qph.ec.quoracdn.net/main-qimg-b7f45825eddcd66705dd45d48dd70af9-c?convert_to_webp=true[/img]

Flying at almost mach 1 on your radar screen or the F22 at mach 2? Clutter must really be bad thing.

Henry240:

Radio coms gave F117 out in addition to VHF radar. VHF-X band will give present stealth aircrafts out at some range.

tdayof:


Radio coms gave F117 out in addition to VHF radar. VHF-X band will give present stealth aircrafts out at some range.

Bottom line, it was shot down using a 1960s Radar and old Soviet missiles. Not one, but 2 units were hit.

Henry240:


Bottom line, it was shot down using a 1960s Radar and old Soviet missiles. Not one, but 2 units were hit.

And do you know that a radar with same technology will track a F22, PAK-FA now. It's not the matter of the years. It's physics.
Moreover with a secured RF coms the F117 won't be shot down.

tdayof:


And do you know that a radar with same technology will track a F22, PAK-FA now. It's not the matter of the years. It's physics.
Moreover with a secured RF coms the F117 won't be shot down.

.....But it was. Low RCS means sh*t when faced with a 1950's Soviet radar.

Russian SSO in Syria

Henry240:



.....But it was. Low RCS means sh*t when faced with a 1950's Soviet radar.

Low RCS is doesn't mean invisibility.

Unknown to NATO, Yugoslav air defenses operators had found they could detect F-117s with their obsolete Soviet radars after some modifications.[3] In 2005, Colonel Zoltán Dani confirmed this in an interview, suggesting that those modifications involved using long wavelengths , which allowed them to detect the aircraft when the wheel well or bomb bay doors were open.[4] In addition, the Serbs had also intercepted and deciphered some NATO communications, and thus were able to deploy their anti-air batteries at positions best suited to intercept NATO planes.[4]


So, no big deal. An aircraft with 0.1 RCS will still be detected by VHF or L band.

tdayof:

Low RCS is doesn't mean invisibility.

Unknown to NATO, Yugoslav air defenses operators had found they could detect F-117s with their obsolete Soviet radars after some modifications.[3] In 2005, Colonel Zoltán Dani confirmed this in an interview, suggesting that those modifications involved using long wavelengths , which allowed them to detect the aircraft when the wheel well or bomb bay doors were open.[4] In addition, the Serbs had also intercepted and deciphered some NATO communications, and thus were able to deploy their anti-air batteries at positions best suited to intercept NATO planes.[4]

Doesn't disqualify the fact, a 1950s Radar, basically World War II tech, shot down a top of the line stealth bomber.

Henry240:


Doesn't disqualify the fact, a 1950s Radar, basically World War II tech, shot down a top of the line stealth bomber.

Does the radar matter? The modification is the bomb.. I'll shoot down a B-2 with a Rolland after modifications.

It's plainly physics.

CHD622V20 3800KW China made diesel engine sold 8 unit to Russia for Buyan 900 tons small frigate 21631. initially they wanted to buy German MTU engines ,but Germany refused and put embargo due to Ukraine issue.

china made 10000-17000kw diesel engine 12MV390 for ship

Hello babies
How are you?

US next gen trainer T-X project
competetion

northrop gruman

vs

boeing

I think both plane have upgrades capacity.the 1st one looks more like a light-fighter for export market.

US warship builder finds China sub-contractor

chinese8107:

have u been to Dixia Changcheng (Hebei Province) and Delingha (Qinghai ) ?

meanwhile in south asia things r getting hot by the minute

2 things will happen within next 48 hours

1. it will be business as usual like before or
2. small scale war !!!!

nemesis2u:


have u been to Dixia Changcheng (Hebei Province) and Delingha (Qinghai ) ?

. say.. I 'v never been to. what's the matter?

FTC-2000 a 2.5 gen ( US standard 3.5 gen) trainer modified from FT-7 (mig-21 variant) still in production ,for training su-27/30/33/35 pilot.

new workmanship and manufacturing equipment adapted to improve the quality and reduce the cost.

with 3 tons weapon payload this plane is also a competitive low cost light-fighter.

BAE M8 AGS light tank

test

chinese8107:
BAE M8 AGS light tank

Beautiful horse.

bidexiii:


Beautiful horse.

BAE M8 is C-130 air drop-able, US found them useful for quickly response force.Heavy tank is not always in need. USA re-pick up light tank.

Beautiful YAK-130

this picture of SFDR is a snapshot from the tender issued for manufacturing and supplying ground launchers which will act as a static platform to launch the SFDR, to check the aerodynamic and control performance. the pic is about 2-3 years old.

SFDR is an Air to Air class of missile working on booster-ram jet sustainer propulsion system. It is a technology demonstration vehicle to prove various technologies like: controlled ram jet propulsion system, chin mounted air intakes, nozzle less booster and boron based propellant with high burn rate.

Solid fuel Ramjet motor (Ducted rocket) brings best out of both solid fuel and liquid motor. You can throttle for variable thrust like liquid ramjet motor. With that you get awesome energy density of solid fuel - particularly when its mixed with 30% Boron. Boron is literally the highest energy density material (weight and volume considered together). it allows for longer burn rates than conventional rocket motors or liquid ramjets. but it is tougher technology to master. advantage is that we can have faster missile with much longer range with thrust power all the while.
also it is worth mentioning that making Boron combust efficiently in the matter of microseconds is tough. Boron particle does not even start burning until after ~1600K and after that as well it has complicated 2 stage combustion mechanism. Basically the combustion chamber design becomes even more complex due to Boron particles.

what i find intriguing is the involvement of the Russians in this project, for all i know that the Russians have opted for dual-pulse motor for the K-77M etc.

there was reports years ago of India and Russia collaborating on K100 an air-to-air missile designed as an "AWACS killer" at ranges of 300-400 km. main targets were to be mid air refueling tankers , maritime patrol aircraft's , reconnaissance and electronic warfare aircraft's , C4ISTAR and AWACS/AEW&C aircraft's. however there are no officials confirmation on the deal , which is justifiable given the nature of the project and for reasons of maintaining secrecy .

[img]http://3.bp..com/-MK73OTdHVM4/VAg7gE_WGfI/AAAAAAAACNs/9seWoyREj_s/s1600/Anti-Awacs.jpg[/img]

another reason could be that the joint project was dormant and activated by India and Russia in the last few years keeping in mind the proliferation of AWACS etc in the region and also to leverage the latest technology in order to build a new BVR AAM which in turn will lead to the development of a extra long range BVR AAM as a spin off.

it is worth mentioning that India has ordered meteor BVR AAM.
and that astra mk2 BVR AAM will be using dual-pulse motor which was developed for barak 8.

makes sense to me

Chinese WS-17 engine for L-15 trainer is undergoing tests.

as an alternative choice to replace the current Ukrainian/Russian AL-222-25 engine on L-15,which is also the engine of Yak-130

pic 1 WS-17
pic 2 AL-222-25
pic 3 L-15

[img]http://4.bp..com/-DXHx-eX1lK4/VYKEInPOscI/AAAAAAAABYE/aCfhTgmktwY/s1600/At_Paris_Air_Show_2015_Rafael_Unveils_for_the_First_Time_I-Derby_ER_Active_Radar_Air-to-Air_Missile_640_001.jpg[/img]

Derby is a beyond visual range (BVR) air-to-air missile (AAM) developed by Israeli defence company Rafael Advanced Defense Systems to meet the combat needs of the armed forces.

Derby's variants include I-Derby and I-Derby ER (Extended Range). The upgraded I-Derby AAR missile is equipped with a software-defined active radar seeker .

The I-Derby ER advanced active radar missile features a solid-state active radar seeker and a dual pulse rocket motor, which provides an operational range of up to 100km.

The missile can be launched from Sea Harrier jet fighter, F-16 (Block 52) Fighting Falcon, F-5E Tiger II, and IAI Kfir combat aircraft. The I-Derby ER has been selected by India to equip the LCA Tejas light combat supersonic fighter. Integration tests are underway and a test-fire is set for March 2016.

The Derby missile, featuring lightweight design, is equipped with four main wings and four conventional planar fins in the tail assembly. It is designed to offer increased operational flexibility and multi-shot capability.

The weapon has a length of 362cm, a wing span of 64cm and a diameter of 16cm. It weighs 118kg and is armed with a 23kg warhead. The seeker and guidance system are fitted in the front of the missile, while the rocket motor is placed at the rear.

The missile can operate in lock-on before launch (LOBL) and lock-on after launch (LOAL) modes. In LOAL mode of operation, it receives target information after being deployed from its launch platform, while in LOBL mode, which is enabled in tight dogfights, the seeker is locked onto the target before the missile is launched.

Astra mk1 is India's first beyond-visual-range (BVR) air-to-air missile designed and developed indigenously.

The highly agile, accurate and reliable missile features high single-shot kill probability (SSKP) and is capable of operating under all weather conditions.

Length of the weapon system is 3.8m, while its diameter is 178mm, and an overall launch weight is160kg. Its low all-up weight provides high launch range capability and the system's airborne launcher can be used with different fighter aircraft.

The electronic counter-countermeasures (ECCM) feature improves the missile's target tracking capability by reducing the effect of electronic countermeasures of the enemy targets in jamming environments.

The missile guidance is provided by a terminal active radar-seeker and an updated mid-course internal guidance system, which locates and tracks targets.

It can be launched in both autonomous and buddy mode operation and can achieve lock-on on its target before or after it is launched. its Solid Fuel Rocket motor uses smokeless propellant.

The maximum range of Astra is 110 km in head-on chase and 20 km in tail chase. The missile's maximum speed is Mach 4.5 and can attain maximum altitude of 20 km. The missile can handle 40 g turns near sea level while attacking a manoeuvring target.

The Astra mk2 in development will have a maximum range of 150 km and tail chase range of up to 35 km, and will feature shorter fins than the astra mk1 design.