هذه صور لمراحل تطوير طائرات حلوان 300 و القاهرة 300
كان يا مكان فى سالف العصر و الأون…
الطائرة الأن معروضة فى متحف للطيران فى المانيا لأنه تم الاستعانة بمهندسين المان فى تلك الفترة فى اعمال التطوير للطائرة و المحرك.
فعلا اخى العزيز ولكن لماذا لم يتم تطويرها او انتاجها الى الان ؟؟
تبا لهذا الاسلوب يجب ان اكتب رد كى احمل ملف او صورة حتى لو كانت اساس الموضوع
على ماذا سارد هل ساقول شكرا بدون ان ارى شىء من الموضوع
و انا شايف كده برضه
ياناس شوفو العالم بيعمل ايه المفروض ان الصور تظهر تلقائياً
طبعا بعد حرب 67 توقف كل شيء وعلى حد علمى تم تدميرالطائرة الاليوشن التى كان يجرى عليها تجارب المحرك و التى تظهر فى الصور الاولى و لكن يسال ايضاً عمنا الكبير و برضه العم سام
thaaaaaaaaaaanx
ممكن تشاهدوا هذه الروابط بها بعض المعلومات و يحبذا لو ترجمت للعربية.
http://www.bharat-rakshak.com/IAF/History/1960s/Six-Day.html
http://www.flug-revue.rotor.com/Frtypen/FRHA-300.htm
http://avia.russian.ee/air/egypt/helwan_h-300.html
اسف يا اخوانى طائرة التجارب للمحرك هى انتينوف 12 و ليست اليوشن
و لكنى لم استطع تعديل الرسالة السابقة لا اعلم لماذا
بسم الله الرحمن الرحيم
بالنسبه للطائرات المصريه دي فانا معلوماتي عنها انها كانت أول ابحاث سوبر سونيك في العالم بالتوازي مع ابحاث امريكا وكان شفال فيها دكاتره من هندسه طيران القاهره وفيه معلومه مش متاكد منها انها كانت اول ابحاث جناح دلتا في العالم Delta wing
بس أعرف ان الموساد كان بيبعت طرود ملغمه لفريق البحث العلمي الألماني اللي كان شغال في البرنامج ده وده واحد من اسباب انها وقفت والحرب هي السبب الأهم
معلومات قيمه جدااااااااااااااااااااااااا شكرااااااااا
و انا شايف كده برض
تبا لهذا الاسلوب يجب ان اكتب رد كى احمل ملف او صورة حتى لو كانت اساس الموضوععلى ماذا سارد هل ساقول شكرا بدون ان ارى شىء من الموضوعهذا الاسلوب من طلب الاعضاء الذين يضفون مواضيع
معلش … مش فاهم ممكن التوضيح اكثر
فى المنتديات الاخرى من لا يرى المرفقات هم الضيوف فقط و ليس الاعضاء المسجلين فليس هناك اى ضرورة لحجب المرفقات عن اعضاء المنتدى المسجلين و اذا كان ممكن تعديله من قبل من يضيف موضوع جديد فارجوا ارشادنا لذلك و شكرا لكم.
السلام عليكم ورحمة الله وبركاته بالنسبة لتحميل المرفقات هذا طلب من الكثير من الاعضاء لانهم يضيفون الموضوعات ولا يجدون من يرد عليهم حتى لو بكلمة شكرا التى يستكترها البعض فالافضل انه كما يستفيد العضو من المنتدى ان يقول شكرا طالما لا يريد ان يفيد
[LEFT]Helwan HA-300
History
The Egyptian Helwan (also Haluan or Heluan) HA-300 lightweight jet fighter is an exotic and enigmatic aircraft. It is quite unique by being the lightest Mach 2 fighter ever built (at a take off weight of 3.200 kg for the first prototype and 4.500 kg for the planned series version). It was the last jet fighter conceived under the direction of Willy Messerschmitt, and in its later stage (after Messerschmitt dropped out of the project) the development team was actually headed by Kurt Tank, that other famous German designer. And it was truly cosmopolitan from its conception onward.
The development actually started in 1952 in Spain, based on late WW2 developments undertaken in Oberammergau. With declining Spanish interest, Messerschmitt must have been quite happy when Egypt signed a contract in 1959 to continue the development of this fighter.
The final development resulted in a tailed delta configuration, not unlike the MIG 21. Power for the small and light delta fighter came from a Bristol Orpheus 703 engine in the first two prototypes, whereas the third prototype and the series were planned for the locally developed Brandner/EGAO E-300.
The project team consisted of Egyptian, German, Swiss, Spanish and Austrian members. As they did not have any experienced local test pilots, Egypt sought and found help from another non-aligned country: India provided Kapil Bargava for the flight tests.
The first prototype flew for the first time on March 7, 1964, the second prototype (depicted in the model) on July 22, 1965. While the prototypes displayed pleasing handling characteristics not unlike the similar (but lower performance) Folland Gnat, there was little doubt about its inferiority to the MIG 21, which had at that time already entered service with the EAF. This, combined with the very slow development process and economic problems in Egypt finally led to the cancellation of the whole project. The third prototype (powered by the Brandner engine) was completed and ground tested, but never flew. In May 1969 - 17 years after the development had started! - the curtain finally fell for Messerschmitt´s last fighter.
The second prototype has actually survived the cancellation. It was transferred to Germany in the early 90’s and found its place in the Oberschleissheim Air Museum just outside of Munich.
Type
Single-seat interceptor
Country
Egypt
Manufacturer
Helwan works of the Egyptian General Aero Organization (EGAO)1
General Information
Crew : 1
Weapons : It was planned to fit two 20 or 30 mm guns and two Atoll air-to-air missiles
Power plant : 1 x Bristol Orpheus 703 (Brandner E-300 was fitted to the third prototpye)
Thrust : 1 x 21,6 kN (4850 lbs). For the E-300, the calculated thrust with afterburner was 10540 lbs
Dimensions
Length : 13,0 m
Heigth : 3,65 m
Span : 5,84 m
Wing area : 16,7 sq m
Weights
Max. take-off weight : 4490 kg
Performance
Max. speed : Mach 1.13 (was expected to be Mach 2 with Brandner E-300 engine)
Service ceiling : 18000 m
Range : around 1400 km (estimated)
Costs
It is said that the programme cost the Egyptian government some 135 million Pounds.
Customers
Egyptian Air Force, but only two protoypes were flown at Helwan before the programme was terminated in 1969.
Remarks
After the Second World War, Professor Willy Messerschmitt for some years worked in Spain where he designed the HA-200 jet trainer, which first flew in 1955. Even two years before, design studies were started on a small Mach 2 interceptor, designated P 300. This led to the construction of a glider as proof of concept vehicle (HA-300P). As Spanish interest in the project vaned and funds dried up, the whole programme was transferred to Egypt.
There the first prototype HA-300 made its maiden flight on 7 March 1964, with Indian test pilot Kapil Barghava at the controls. The second prototype followed on 22 July 1965. With the Orpheus engine, the aircraft was severely underpowered, but development of the planned Brandner E-300 did only progress slowly. Finally, the programme was cancelled in 1969, even though a third protoype with the E-300 had started taxi test already
[/left]
بعض المعلومات الاخرى
[LEFT]
One of the lightest aircraft was the Harwan HA-300. This Egyptian aircraft
started as a Spanish aircraft prior to its plans being sold. It was in
essence however a Messerschmitt with as much design carried out in
Munich. The aircraft achieved Mach 1.13 on an Orpheous engine but was
expected to achieve Mach 2.1 or more with the afterburning Brandner
EGAO E-300 engine which engine was fitted in the 3rd prototype.
It was a pretty plane: a tailed delta like the MiG 21 only with
semi-circular side intakes instead of a nose intake. It had a thiner
3% thick, 58 degree sweep biconvex wing cross section. In many ways
it continued the Me 109 philosophy of high power to weight ratio
through small size. It would have had much higher climb rate and
acceleration than the MiG 21 and most if not all other fighters of the
day becuase of its high T/W ratio and SEP.
Max take of weight was expected to be 4490kg (11,000lbs) with normal
take of weight somewhat less. Schick and Radingers “Secret
Messerscmitt Projects” gives a normal(clean) takeoff weight of 4500kg
(9,900lbs).
Speed was Mach 2.0+. Initial rate of climbe was 190m/s (130-140m/s
MiG 21 F-13) and time to 12,200m was 2.5 minutes (For comparision 3.2
minutes to 10,000m for MiG 21 F-13), Ceiling with 2 AAMs and 2 canon
was 18,000m.
It might not have been quite as light as the Northrop F-5 series but it
would have been a much faster full on Mach 2 aircraft.
HA-300 development was instrumental in developing a new generation of
German aeronautical engineers whose legacy is felt in EADS today.
Germany had been baned from manufacturing aircraft untill 1955. Like
most of the post war products of Willy Messerschmitt and Kurt Tank (Eg
Pulqui II and Hindustan Marut) the 3rd world nations that funded these
aircfaft were streched to support them financially and lacked
facilities such as wind tunnels and sufficient skilled workforce. The
gracefull Marut entered service and despatched a few Pakistani Sabres
in Air to Air combat but never achieved its potential because the
Indian Government wouldn’t underwrite afterburner development of the
orphous (12 million punds), whereas the Spanish ran out of money for
the HA-300 and the Egyptians eventually settled on the MiG 21 when the
Soviets became especially keen to offer it[/left]
ولماذا توقف التصنيع ؟…خسارة
شكرا جزيلا
مصر قادرة على الابتكار والتصنيع بل وقادرة على احتكار الاسواق العالمية بمنتجاتها وبضائعها