على ذمة Air & Cosmos ,الرافال تتفوق على اف15 واف18 في قطر

مارشال قال:

من يحرف المعنى

أنا قلت تسليم المحرك فئة tco تم فعلا وجئت برابط المجلة

حسنا نعيد الكلام من جديد

انا قلت المحرك القديم فئة m88-2 هو فئة دفع جاف 11000 باوند مقابل دفع حارق 17000 باوند
الإمارات طلبت محرك دفع جاف 17000 باوند وبالتالي يدفع 9 طن ببساطه هو من سميناه m88-9x الذي اخذ اسما اخرا وهو m88-3 eco ببساطه هذا المحرك يضيف لوزن الرافال 179 كجم وقطره 790ملم

التقنيات المستخدمه في محرك m88-3 تم فكرة تطبيقها على المحركات الأقدم اي uprating وهو يعني رفع المستوى وبالتالي ظهرت الحزمة التطويرية للنسخ الأقدم



وبالتالي حزمة tco امامك والروابط معك

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مارشال قال:

كلمة واحدة تلخص كلامي

Snecma has developed an improved version of the M88 called the M88-4E, formerly known as the "TCO Pack" (Total Cost of Ownership), to power Rafale multirole fighters. The upgrades were focused to the high-pressure compressor and turbine, derived from technologies tested during the ECO development program. The aim is to extend the service life and time between inspections for several parts of the engine. M88-4E engine was qualified in April 2012 and the first engine was delivered a month later.

ليس لديك تصريح لمشاهدة الرابط، فضلا قم ب تسجيل الدخول او تسجيل

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berkut_su قال:

وضع محرك بقوة اعلى ليس بالامر البسيط وكما كنت اقول سابقا يحتاج الى تمويل كبير جدا ....لهذا ان لم تجد فرنسا حل فاما ان تدفع الامارات ارقام كبيرة او تذهب للتايفون ..............

now here comes the most controversial of debates because the greatest drawback which rafale has is its power generated by the engines. Which is much lower than eurofighter typhoon and smaller machines like f-16.

The current engine flown by french air force generates 7.5 tonnes of power. Because rafale has two engines therefore it can generate upto 15 tonnes of power.this gives the aircraft the power to weight ratio of 1:1 when loaded with 50% fuel and 2.5 tonnes of weapon. Unfortunately when rafale is used to the hilt that is the maximum take-off weight of 25 tonnes, this power to weigh ratio degrades considerably which can prove an achilles heel for it.

french air force pilots are quite satisfied with the performance even in hot weather of uae and afghanistan. Currently french pilots cruise at a speed of 0.9 mach on a seven hour mission with a full ordinance load when flying to libya for bombing missions.

Uae pilots are struggling with the lower power of rafale engine because they are habituated in flying f-16 which are much smaller as mentioned earlier with a very big engine and rafle is unable to match that design or the power output.problem does not stop there either for uae. Uae air force would like to fly with 3 shaheen cruise missiles each of them weigh around 1,300kg, with that they would like to carry three 2,000 liter fuel tanks. Most pilot concede that when the temperature reaches 50 degrees it will be much easy to fly specially take-off with a thrust of 19 tonnes rather than 15 tonnes carrying such a heavy arsenal.

The new-generation m88-2 integrates the latest technologies, including low-emissions combustor, single-crystal turbine blades and powder metallurgy disks, as well as innovations to reduce electromagnetic and infrared signatures. It is a highly compact engine, developing 50 to 75 kn of thrust with afterburner (11,250 to 17,000 lb), giving it a very high thrust-to-weight ratio. The m88-2 also shows exceptionally carefree handling, especially during acceleration.

Snecma is developing an improved version of the m88 called the m88-4e, formerly known as the "tco pack", to power rafale multirole fighters. It will include upgrades to the high-pressure compressor and turbine, derived from technologies tested during the eco development program. The aim is to extend the service life and time between inspections for several parts of the engine. The development of the m88-4e is proceeding very satisfactorily. Qualification and delivery of the first production-standard m88-4e are now slated for the end of 2011.

Work on an improved m-88-2e4 engine is well advanced at snecma, but the goal is not to increase power but to lower the total cost of ownership (tco) by extending service life and time between inspections. The -2e4 will also reduce fuel burn by 2 to 4%, snecma says. Most probably these engines will be tested by november 2011

the improvements included in the m-88-2e4 engine will form the main part for the future 9-tonne engine. However, notes a dassault aviation executive, there’s a big stumbling block: “we need an order and a signature to launch the 9-tonne engine.” unfortunately if this kind of 9 tonne engine is put into rafale then the air went have to be increased by 1.5cm thus increasing the radar cross section. therefore dassault has to either change the design or material used to reduce the rcs.

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BERKUT_SU قال:

اريد منك ان تقول لي ما هو اللمحرك الذي يدفع الرافال الى 20lb وهل فعلا بالخدمة ام لا ???
اريد ان اطلب منك ما هو الدفع الذي تريده الامارات وهل هو متوفر ام لا وماذا يتطلب ؟؟؟

وما هي معدلات تيار الهواء للمحركات ؟؟؟

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M88-4E engine (formerly designated the “TCO Pack”)
Now dubbed M88-4E (formerly designated the “TCO Pack”), the development of the M88-4E is
proceeding very satisfactorily. The first test flight of a Rafale fighter powered by the M88-4E engine
took place on March 22, 2010 at the Istres air base in Southern France. The complete series of
tests for the M88-4E engine comprises some 70 flights in 2010, with different engine configurations.
Development engines are now undergoing ground performance and endurance tests, and a series
of altitude chamber tests was completed in late February 2010. Qualification and delivery of the first
production-standard M88-4E is now slated for the end of 2011.
The aim of this development was to extend the service life and time between inspections for several
parts of the engine. Upgrades are planned to the high-pressure compressor and high-pressure
turbine, and are derived from various technologies tested during the ECO development program.
M88 “9-ton” versions
Snecma is considering the development of a variant of the M88 which will be rated at 20,000 lb of
thrust with afterburner. Snecma has already demonstrated the feasibility of the “9 ton” version of the
M88, allowing for the design related risks to be under control. The aim is not to design a brand-new
engine, but to adapt the current M88. The “9-ton” version incorporates the new technologies and
upgrades developed through two programs, the M88 “TCO Pack” and M88 ECO demonstrator

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BERKUT_SU قال:

المقال يكتب ما كتبته قبل ساعات ...................

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مارشال قال:

جميل جدا

ليس لديك تصريح لمشاهدة الرابط، فضلا قم ب تسجيل الدخول او تسجيل

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مارشال قال:

مقالك يقول

Work on an improved m-88-2e4 engine is well advanced at snecma, but the goal is not to increase power but to lower the total cost of ownership (tco) by extending service life and time between inspections. The -2e4 will also reduce fuel burn by 2 to 4%, snecma says. Most probably these engines will be tested by november 2011


يعني هناك زيادة للقوة

ثم قالوا ... الحديث عن محرك 9 طن جديد يستلزم ماقلته انت

لكن هنا كلامي

Snecma has already demonstrated the feasibility of the “9 ton” version of the
M88, allowing for the design related risks to be under control. The aim is not to design a brand-new
engine, but to adapt the current M88. The “9-ton” version incorporates the new technologies and
upgrades developed through two programs, the M88 “TCO Pack” and M88 ECO demonstrator

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BERKUT_SU قال:

Snecma has already demonstrated the feasibility of the “9 ton” version of the

هذا يعني انه لا يوجد شيء جاهز ............بل دراسة

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berkut_su قال:

مع انها بثلث سعر الرافال واقل الا انها تملك محركات اقوى واسرع ورادار اقوى ومعدات الكترونية من صنع اوروبي كما ترون في الصورة مع دفع موجه .......فما هو الشيء الذي يميز الرافال ليستحق 110 مليون دولار ؟؟؟؟؟

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مارشال قال:

لا يا صديقي ليس دراسة

الإمارات فعليا تخلت عن طلب محرك خاص بها مقابل ال m88e4 والأخ كاميكازي خير من يقول

وال interchangebility الموجوده بين المحركات الجديدة والقديمة

يا عزيزي النجاح الفرنسي ملحوظ وجيد جدا وهم كانوا صرحاء نحن لن نبني محرك جديد

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