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بوينغ تخفض من مزايا السايلنت ايقل
في المناقصة الكورية
فاجأت بوينغ الجميع بتصريحها حول نسخة السايلنت ايقل المقدمة الى كوريا
بوينغ تقول ان زعانف الذيل الخلفية المائلة المستخدمة في الطائرة
عرضت كميزة اضافية وليس كأمر قياسي
وانها نصحت كوريا بأن تختار التصميم القياسي وهو زعانف الذيل العمودية وليس المائلة
كان يعتقد في السابق ان ميل زعانف الذيل الخلفية هو ضرورة لتقليل المقطع الراداري للطائرة واعطائها مزايا شبحية
لكن بوينق تقول ان اختبارات نفق الهواء لم تظهر الا تحسن طفيف عند استخدام الزعانف المائلة
لذلك هي تنصح كوريا بأختيار التصميم القياسي
وزعانف الذيل العمودية بدلا عن الزعانف المائلة 15 درجة
وذلك لتقليل التكاليف ولان ذلك الخيار جاهز ولا يحتاج الى مزيد من اعمال التطوير
من جهة اخرى تقول بوينغ انها لم تتخلى عن مشاريع تطوير
انظمة زعانف الذيل الخلفية المائلة
لكنها في هذه المناقصة لن تقدم كميزة قياسية
Boeing Cuts F-15SE Design Feature in Korean Fighter Bid
F-15E with conformal fuel tanks and conventional vertical tail. The F-15SE will be similar to the current configuration, but will feature a conformal weapons bay, instead of the conformal carriage. Other features include improved new cockpit displays, avionics and defensive aids.
As competition to secure a $7.3 billion deal with South Korea for the Asian nation’s next-generation fighter enters its final stages, Boeing made a surprise announcement that a key “stealth” feature of its new F-15 Silent Eagle (F-15SE) was being dropped from the company’s bid. Boeing’s F-15SE is in a tough round of evaluations as it competes with Lockheed Martin’s F-35A Lightning II Joint Strike Fighter (JSF) and EADS’ Eurofighter Typhoon to nail down a multi-billion contract with South Korea for as many as 60 fifth-generation fighters.
Boeing’s initial F-15SE offering praised the aircraft’s canted tail fins as a key stealth-enhancing feature that would go far in reducing the fighter’s radar cross-section (RCS) return while also delivering slightly greater range, and much improved flight characteristics. The canted tails would also, Boeing claimed, reduce the aircraft’s overall weight. Some industry specialists claim that the tail fins, canted outward 15 degrees, are essential in a stealth fighter design.
And now, Boeing released a statement saying the canted tail-fin configuration would be offered as an option and not a standard feature on the F-15SE and indicated that the company was advising South Korea not to opt for the canted tails at this stage. According to reports, wind tunnel tests revealed the canted tail fins delivered only marginal improvement in the aircraft’s performance.
Boeing said that the cost-effective option for South Korea’s F-15SE would be to be fitted with standard vertical tail surfaces, to best fit to meet South Korea’s F-X needs while keeping costs at an affordable level.
In response to inquiries from Defense-Update, Boeing responded by saying the company is “confident that our compliant Silent Eagle offering is best suited to address F-X requirements. Canted Vertical Tails, one of the many capability elements of the Silent Eagle, were offered as an option in our proposal to Korea.”
Boeing went on to say that “our Silent Eagle offering is best suited to address F-X requirements and provides our ROK customer a highly capable, yet low-risk and affordable Silent Eagle F-X solution on a schedule that will meet the ROK requirements.” As clarification, Boeing insists that development of the canted tail surfaces was not being abandoned or suspended and the company intended to continue development efforts.
As with all things in life, cost and timely availability are also primary concerns, what makes reducing the developmental risk the F-15SE an advantage, rather than drawback for the Silent Eagle. With The F-35A is still in the developmental stages, the F-22 Raptor cannot be had, the Typhoon is no longer cutting-edge – the Silent Eagle may be the best deal on the table.
The F-15SE flight demonstrator launches an AMRAAM AIM-120 from the conformal internal weapon bay. Photo: Boeing
في الختام تقول بوينغ
ان طائرتها هي الجديرة بالفوز
لان بحسب قولهم
الاف 35 مازالت تحت التطوير وليست جاهزة
بينما الحصول على الاف 22 غير ممكن
والمنافس الأخر التايفون لا تقاس بتطور السايلنت ايقل
لذلك نسخة السايلنت ايقل المعروضة هي افضل الخيارات المتاحة بحسب قولهم
في المناقصة الكورية
فاجأت بوينغ الجميع بتصريحها حول نسخة السايلنت ايقل المقدمة الى كوريا
بوينغ تقول ان زعانف الذيل الخلفية المائلة المستخدمة في الطائرة
عرضت كميزة اضافية وليس كأمر قياسي
وانها نصحت كوريا بأن تختار التصميم القياسي وهو زعانف الذيل العمودية وليس المائلة
كان يعتقد في السابق ان ميل زعانف الذيل الخلفية هو ضرورة لتقليل المقطع الراداري للطائرة واعطائها مزايا شبحية
لكن بوينق تقول ان اختبارات نفق الهواء لم تظهر الا تحسن طفيف عند استخدام الزعانف المائلة
لذلك هي تنصح كوريا بأختيار التصميم القياسي
وزعانف الذيل العمودية بدلا عن الزعانف المائلة 15 درجة
وذلك لتقليل التكاليف ولان ذلك الخيار جاهز ولا يحتاج الى مزيد من اعمال التطوير
من جهة اخرى تقول بوينغ انها لم تتخلى عن مشاريع تطوير
انظمة زعانف الذيل الخلفية المائلة
لكنها في هذه المناقصة لن تقدم كميزة قياسية
Boeing Cuts F-15SE Design Feature in Korean Fighter Bid
F-15E with conformal fuel tanks and conventional vertical tail. The F-15SE will be similar to the current configuration, but will feature a conformal weapons bay, instead of the conformal carriage. Other features include improved new cockpit displays, avionics and defensive aids.As competition to secure a $7.3 billion deal with South Korea for the Asian nation’s next-generation fighter enters its final stages, Boeing made a surprise announcement that a key “stealth” feature of its new F-15 Silent Eagle (F-15SE) was being dropped from the company’s bid. Boeing’s F-15SE is in a tough round of evaluations as it competes with Lockheed Martin’s F-35A Lightning II Joint Strike Fighter (JSF) and EADS’ Eurofighter Typhoon to nail down a multi-billion contract with South Korea for as many as 60 fifth-generation fighters.
Boeing’s initial F-15SE offering praised the aircraft’s canted tail fins as a key stealth-enhancing feature that would go far in reducing the fighter’s radar cross-section (RCS) return while also delivering slightly greater range, and much improved flight characteristics. The canted tails would also, Boeing claimed, reduce the aircraft’s overall weight. Some industry specialists claim that the tail fins, canted outward 15 degrees, are essential in a stealth fighter design.
And now, Boeing released a statement saying the canted tail-fin configuration would be offered as an option and not a standard feature on the F-15SE and indicated that the company was advising South Korea not to opt for the canted tails at this stage. According to reports, wind tunnel tests revealed the canted tail fins delivered only marginal improvement in the aircraft’s performance.
Boeing said that the cost-effective option for South Korea’s F-15SE would be to be fitted with standard vertical tail surfaces, to best fit to meet South Korea’s F-X needs while keeping costs at an affordable level.
In response to inquiries from Defense-Update, Boeing responded by saying the company is “confident that our compliant Silent Eagle offering is best suited to address F-X requirements. Canted Vertical Tails, one of the many capability elements of the Silent Eagle, were offered as an option in our proposal to Korea.”
Boeing went on to say that “our Silent Eagle offering is best suited to address F-X requirements and provides our ROK customer a highly capable, yet low-risk and affordable Silent Eagle F-X solution on a schedule that will meet the ROK requirements.” As clarification, Boeing insists that development of the canted tail surfaces was not being abandoned or suspended and the company intended to continue development efforts.
As with all things in life, cost and timely availability are also primary concerns, what makes reducing the developmental risk the F-15SE an advantage, rather than drawback for the Silent Eagle. With The F-35A is still in the developmental stages, the F-22 Raptor cannot be had, the Typhoon is no longer cutting-edge – the Silent Eagle may be the best deal on the table.
The F-15SE flight demonstrator launches an AMRAAM AIM-120 from the conformal internal weapon bay. Photo: Boeingفي الختام تقول بوينغ
ان طائرتها هي الجديرة بالفوز
لان بحسب قولهم
الاف 35 مازالت تحت التطوير وليست جاهزة
بينما الحصول على الاف 22 غير ممكن
والمنافس الأخر التايفون لا تقاس بتطور السايلنت ايقل
لذلك نسخة السايلنت ايقل المعروضة هي افضل الخيارات المتاحة بحسب قولهم
