JF-17 Expected to Powered by RM 12 Engine: Report

[Lankan Ranger]

JF-17 Expected to Powered by RM 12 Engine: Report

According to the news coming from several Asian Defense Analysts.
Pakistan Aeronautical Complex favors General Electric RM-12 Engine to replace Russian RD-93 Engine.

RM 12 Engine

The Volvo Aero modification of the F404 consists increased performance, greater resistance to bird strikes and designed for single engine use safety criteria.

60% of the engine parts are produced by GE and then shipped to Sweden for final assembly. The fan/compressor discs and case, compressor spool, hubs, seals and the entire afterburner are designed and produced in Sweden.

RM 12 Engine Specifications

General characteristics
Type: Afterburning turbofan
Length: 154 in (3,912 mm)
Diameter: 35 in (889 mm)
Dry weight: 2,282 lb (1,036 kg)

Components
Compressor: Axial compressor with 3 fan and 7 compressor stages
Bypass ratio: 0.34:1
Turbine: 1 low-pressure and 1 high-pressure stage

Performance
Maximum thrust:
11,000 lbf (48.9 kN) military thrust
17,700 lbf (78.7 kN) with afterburner
Overall pressure ratio: 26:1
Specific fuel consumption:
Military thrust: 0.81 lb/(lbf•h) (82.6 kg/(kN•h))
Full afterburner: 1.74 lb/(lbf•h) (177.5 kg/(kN•h))
Thrust-to-weight ratio: 7.8:1 (76.0 N/kg)

 

[Lankan Ranger]

RM 12 Engine

 

[flanker143]

self delete ....

 

[Lankan Ranger]

thats even lower than rd33..... !! how come its possible ??

60% of the engine parts are produced by GE and then shipped to Sweden for final assembly. The fan/compressor discs and case, compressor spool, hubs, seals and the entire afterburner are designed and produced in Sweden. Maximum thrust is 80.5/54 kN (wet/dry).

 

[flanker143]

60% of the engine parts are produced by GE and then shipped to Sweden for final assembly. The fan/compressor discs and case, compressor spool, hubs, seals and the entire afterburner are designed and produced in Sweden. Maximum thrust is 80.5/54 kN (wet/dry).

ohh sorry buddy ....... my mistake !!!

 

[rohailmalhi]

Now india will go for Grippen to block this one too. Just watch. They might also buy Volvo. Lol

Tht would be fun .If tht happens it will show how we can control indians decision.

but i think this is just rumour .RD-33 is aint going any where .its there atleast PAF can have the number of required jets with RD33 . after tht they might go for WS13 engine which is currently going through Taxi trials in China.

BTW whats the point of buying again a American engine.The sole purpose of JF17 was tht we can make it without any strings attached.and i dont think tht PAF guys gonna be dependent on Americans once again even for JF17 project.

 

[Trisonics]

Sri Lankan, where is the source for this article?

it seems false because:

1) I don't think any country wants to risk its technology being copied by China

2) Why would PAF accept this? It may mean a re-design and can Pakistan do it on its own? How long will it take?

3) The current situation (if true) will not harm Pakistan in any way. They as many have said here already have >150 engines. By the time they build the rest of the squadrons, a Chinese option should be available.

 

[IndianArmy]

Why Would Pakistan Go for comparatively Inferior Engine than the current RD 93 ??

 

[Crypto]

The RM12 is a derivative of the successful F404 turbofan, developed originally by the U.S. Navy for its Boeing F/A-18 Hornet.

GE and Volvo Aero Corporation have developed the RM12 to power the Saab/BAE Systems Gripen, a multi-role attack and reconnaissance aircraft.

The RM12-powered Gripen serves the Swedish Air Force and deliveries to South Africa are planned to start in 2006.

The RM12 provides the Gripen with reliable power and outstanding operational and handling characteristics. Its simple, modular design is reliable and easy to maintain - key to high readiness and low cost of ownership. The RM12's single-engine features include a Full Authority Digital Electronic Control (FADEC) with hydromechanical backup and a redundant ignition system.

With no throttle restrictions, stall-free operation, fast acceleration and deceleration and consistent afterburner lights, the RM12 is a fighter pilot's engine.

--------------

by looking at the length, diameter, thrust its not much behind in terms of power and other characteristics.
It has slightly less thrust with after burners compared to RD93 but more thrust without burner, so cruising at higher speeds will be possible.

It may be a possibility but US and Sweden will agree? thats the question.

Kilmov RD93
50.0 kN / 11,230 lbf Dry
81.3 kN / 18,285 lbf Afterburning


RM-12
54 kN/12150 lb Dry
80.5 kN/18100 lb with afterburner
Thrust-to-weight ratio: 7.8:1 (76.0 N/kg)
total length 4.04 m/159 in
max.diameter0.884 m/34.8 in
inlet diameter0.709 m/27.9 in
engine dry weight 1055 kg/2325 lbs

 

[TaimiKhan]

Highly unlikely and as of now no such development.

Within 3-4 days decision is not made about replacement, especially since the RD-93 issue is not with respect to Pakistan, rather for markets where MiG & Sukhoi are competing.

Made up story to keep the story going around in circles.

The day Russia says, we will not sell it for export to Pakistan, then people should talk and put up back up plans.

For now all is well.

 

[bc040400065]

No chance of RM12 or F404. may be F414 as an option can be looked into but no chance of it being selected. Why because its US product 2ndly IF RD93 are blocked then first option will be WS13 and even if they are not ready then in my opinion the best option will be Snecma M53 engines or even WS9 used on JH7. No chance of RM12/F404/F414.

There are so many options available.

 

[mjnaushad]

I dont know weather the newz iz true or flase but i found this data


http://www.volvoaero.com/volvoaero/...%20engines/RM12/Pages/technical_data.aspx

RM12 technical engine data
total length 4.04 m/159 in
max.diameter0.884 m/34.8 in
inlet diameter0.709 m/27.9 in
engine dry weight 1055 kg/2325 lbs
bypass ratio 0.31:1
total compression ratio 27.5:1
max thrust with afterburner 80.5 kN/18100 lb
max thrust without afterburner 54 kN/12150 lb

 

[Guynextdoor]

Highly unlikely and as of now no such development.

Within 3-4 days decision is not made about replacement, especially since the RD-93 issue is not with respect to Pakistan, rather for markets where MiG & Sukhoi are competing.

Made up story to keep the story going around in circles.

The day Russia says, we will not sell it for export to Pakistan, then people should talk and put up back up plans.

For now all is well.

What's the status? Do you or do you not have the first 100 engines?

 

[fatman17]

No chance of RM12 or F404. may be F414 as an option can be looked into but no chance of it being selected. Why because its US product 2ndly IF RD93 are blocked then first option will be WS13 and even if they are not ready then in my opinion the best option will be Snecma M53 engines or even WS9 used on JH7. No chance of RM12/F404/F414.

There are so many options available.

true, but will lead to 'plumbing' changes and could delay things by atleast 2-3 years as contract negotiations take time these days and nothing is available 'off the shelf'.

 

[Crypto]

What's the status? Do you or do you not have the first 100 engines?

China received 150 Engines in the first batch, 100 for jets and 50 as spares.