DRDO and PSU's

Ayan Barat said:
(PS: In case someone brings in altitude and available power at low oxygen; SW-51 Mustang is powered by the same Rotax 916 and has a max operating altitude of 23,000ft)
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Umm akhtchually . The mustang needed a massive supercharger to operate at those altitudes.
 
AGNI 6 ICBM said:
DRDO-MIRV MISSILE ☢️🚀🇮🇳🕉💪

Length : 14 Meters
Diameter : 2 Meters
Weight : 60 Tons
Range ~ 8,000 Km

Kaal 5 SLBM or Agni series ICBM 🤔
View attachment 25985



View: https://x.com/prudhvitej32/status/1893931436828242252



K5 SLBM ? 🤔 or Agni series ICBM 🤔


@dfi_pk :daru::drunk2:


:indian-flag: :pound::hurray:


let's party 🥳🥳🥳🥳🥳 😎
Click to expand...

Russian Topol-M is 22 Metres&2-Metres in Length and Diameter weighing in 47-Tons and having 11,000-Km range.

Keeping aside Range aside can someone tell me how some missile almost similar diameter but 8m more length has lesser weight?

Is it due to usage of high percentage of composites or titanium? What's going on here?
 
ezsasa said:
force motors
View attachment 25975

View attachment 25976

gomechanic.in

Force Motors: The lesser-known Facts about the Indian Manufacturer

An Indian manufacturer, Force Motors has been a well-known brand manufacturing sturdy commercial and Sports Utility vehicles. But the brand is much more
gomechanic.in gomechanic.in
Click to expand...
Force is still kicking a 50 year old OM-616 turbo diesel (2.6 liter, 91hp, 250nm torque) mated to a G28 gearbox and made BS-6 compliant. Their current best engine is a 25 year old Mercedes OM-611 (2.2 liter, 140hp, 321nm torque) that was discontinued on Mercedes cars 18 years ago. Force hasn't figured out how to make the 611 BS-6 compliant so the engine isn't even offered on 4th gen Gurkhas anymore. And they'll keep using that G28 gearbox till the earth shatters. Now you can argue that they are doing much better than Tata Desh ka loha that is allergic towards any meaningful in-house engine R&D.
 
Corvus Splendens said:
Force is still kicking a 50 year old OM-616 turbo diesel (2.6 liter, 91hp, 250nm torque) mated to a G28 gearbox and made BS-6 compliant. Their current best engine is a 25 year old Mercedes OM-611 (2.2 liter, 140hp, 321nm torque) that was discontinued on Mercedes cars 18 years ago. Force hasn't figured out how to make the 611 BS-6 compliant so the engine isn't even offered on 4th gen Gurkhas anymore. And they'll keep using that G28 gearbox till the earth shatters. Now you can argue that they are doing much better than Tata Desh ka loha that is allergic towards any meaningful in-house engine R&D.
Click to expand...


OM-616 is reliable, and Force is not going to jump into Trucks. They are happy to sell Travellor since there is no competition. Urbania is the first modern approach. Also, they have this monopoly in that segment for decades.

AL uses their own engine, Mahindra use their own engine Mpower. Tata have turbotronn for their LCV. But for HCV they are debted to Cummins. Force is not a great example. But they can invest in R&D, unless travellor is threatened by someone.
 
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Corvus Splendens said:
Force is still kicking a 50 year old OM-616 turbo diesel (2.6 liter, 91hp, 250nm torque) mated to a G28 gearbox and made BS-6 compliant. Their current best engine is a 25 year old Mercedes OM-611 (2.2 liter, 140hp, 321nm torque) that was discontinued on Mercedes cars 18 years ago. Force hasn't figured out how to make the 611 BS-6 compliant so the engine isn't even offered on 4th gen Gurkhas anymore. And they'll keep using that G28 gearbox till the earth shatters. Now you can argue that they are doing much better than Tata Desh ka loha that is allergic towards any meaningful in-house engine R&D.
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Honestly I don't think even Chinese invested hard r&d in ICE. They take decades to master and need ancillary Industries like Precision Machinery and Test Facilities to succeed. Now Chinese Automakers are focusing on EVs.
 
Lid opening mechanism for Ballistic Missiles 🚀💪🕉🇮🇳☢️

IMO these bulky opening mechanism is used for SLBM Launch tube or SILO BASED Ballistic missiles

Mechanism :
1. 4 locks opens (Lock Release)
2. Lid cap opener starts
3. Lid cap will have >90° Angle with tube
4. Missile fire 🚀

1000004048.webp

1000004051.webp

1000004053.webp

----‐---------------------------------------------------------------------------------------

Compact version "optimised to occupy less space" is used for SSBN's like P80 launch tube

So above one is with 4 x Lock Release is mostly for Ballistic Missiles SILO's.......


P80 launch tube for reference
1000004054.webp


View: https://x.com/GODOFPARADOXES/status/1673352992613957633



FYI None of our Road/Rail TEL use above mechanism.....


So SILO's are there 😍💪 :pound:


@dfi_pk :drunk2:
 
Corvus Splendens said:
Force is still kicking a 50 year old OM-616 turbo diesel (2.6 liter, 91hp, 250nm torque) mated to a G28 gearbox and made BS-6 compliant. Their current best engine is a 25 year old Mercedes OM-611 (2.2 liter, 140hp, 321nm torque) that was discontinued on Mercedes cars 18 years ago. Force hasn't figured out how to make the 611 BS-6 compliant so the engine isn't even offered on 4th gen Gurkhas anymore. And they'll keep using that G28 gearbox till the earth shatters. Now you can argue that they are doing much better than Tata Desh ka loha that is allergic towards any meaningful in-house engine R&D.
Click to expand...
Sometimes you have to follow: "If it ain't broke, don't fix it"

For the market where Force motors work, there is no competition and their existing line of Travellers works well, hence no urgent need to move to any new engine. However, they keep the existing OM-611, 616 up to date as much as possible.​
 
SKC said:
Sometimes you have to follow: "If it ain't broke, don't fix it"

For the market where Force motors work, there is no competition and their existing line of Travellers works well, hence no urgent need to move to any new engine. However, they keep the existing OM-611, 616 up to date as much as possible.​
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Yes this is sensible and I don't think Force is doing anything wrong. But, because of this lack of "need" the industry isn't maturing fast enough. And with the onset of useless EVs being pushed onto everyone, I fear our industry will never master modern internal combustion engines before EVs become mainstream. Only hope I have right now is someone figuring out the efficient storage of Hydrogen, so we can keep the combustion engine around.
 
GodEmperorDoom said:
Russian Topol-M is 22 Metres&2-Metres in Length and Diameter weighing in 47-Tons and having 11,000-Km range.

Keeping aside Range aside can someone tell me how some missile almost similar diameter but 8m more length has lesser weight?

Is it due to usage of high percentage of composites or titanium? What's going on here?
Click to expand...

IMO the above 60 Ton missile is K5 SLBM...


DRDO is using Advanced composites in Missile body.....So Missile Airframe will be light in weight.....


Our propellant is world class....K4 SLBM with overall weight of just 17 Tons is having 4,000 Km range....IMO our propellant & propulsion are Top 4 in world ....


We might have HD 1.3 class propellant in above missile...


Range depends on trajectory....Ruskies who designed their ICBM's to hit america....whose flight path will go through north pole will face near zero chance of interception so they might opt for propellant grain geometry which burns for long duration with minimal thrust.... Mass of a stage depends upon propellant grain geometry......so Ruskie topol missile has even more length but lighter in weight when compared to 60 Ton Missile
images (30).webp


IMO trajectories of SLBM's & ICBM's are different and its not fair to compare Ruski ICBM with above 60 Ton SLBM...


You can compare Above 60 Ton SLBM with trident D5 Slbm


Both DRDO 60 Ton SLBM & trident D5 SLBM have similar volume of 50.25 M^3 & 47 M^3 Respectively....


Similar Weight too.... :pound:
DRDO SLBM -> 60 Ton
trident d5 -> 59 Ton


So IMO Range vs Payload graph of DRDO 60 Ton SLBM & trident d5 world be similar


Years ago DRDO mentioned Future SLBM will have Aerospike....


IMO K6 will have 2.4 Meters Diameter & Length ~ 14-16 Meters with 75-80 Ton Weight....(similar to R39 SLBM)


FYI Drdo gave order for a pvt company to make 54 Ton solid rocket motor transporter.....Mostly that 54 Ton solid rocket motor is First stage of DRDO VEDA or K6 SLBM
 
INVADER said:
IMO the above 60 Ton missile is K5 SLBM...


DRDO is using Advanced composites in Missile body.....So Missile Airframe will be light in weight.....


Our propellant is world class....K4 SLBM with overall weight of just 17 Tons is having 4,000 Km range....IMO our propellant & propulsion are Top 4 in world ....


We might have HD 1.3 class propellant in above missile...


Range depends on trajectory....Ruskies who designed their ICBM's to hit america....whose flight path will go through north pole will face near zero chance of interception so they might opt for propellant grain geometry which burns for long duration with minimal thrust.... Mass of a stage depends upon propellant grain geometry......so Ruskie topol missile has even more length but lighter in weight when compared to 60 Ton Missile
View attachment 26043


IMO trajectories of SLBM's & ICBM's are different and its not fair to compare Ruski ICBM with above 60 Ton SLBM...


You can compare Above 60 Ton SLBM with trident D5 Slbm


Both DRDO 60 Ton SLBM & trident D5 SLBM have similar volume of 50.25 M^3 & 47 M^3 Respectively....


Similar Weight too.... :pound:
DRDO SLBM -> 60 Ton
trident d5 -> 59 Ton


So IMO Range vs Payload graph of DRDO 60 Ton SLBM & trident d5 world be similar


Years ago DRDO mentioned Future SLBM will have Aerospike....


IMO K6 will have 2.4 Meters Diameter & Length ~ 14-16 Meters with 75-80 Ton Weight....(similar to R39 SLBM)


FYI Drdo gave order for a pvt company to make 54 Ton solid rocket motor transporter.....Mostly that 54 Ton solid rocket motor is First stage of DRDO VEDA or K6 SLBM
Click to expand...
So ours is rather densely packed and volumetrically higher efficient?
 
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