The Mirage III was the result of an evoluting program launched in 1953. At first, it was for lightweight interceptors to reach mach 1.5 with a single AAM.
At the time, only 3 publics firms (SNCA N, SE and SO) and some private (Breguet, Dassault and Morane Saulnier) were able to build this kind of aircrafts.
The Nord-1400 Gerfault was not a contender for this program; the Nord Aviation entry was the Nord 5000 Harpon (I made a thread on it recently)
Others were the MS-1000 and Breguet 1002. These remains paper projects, but three others aircrafts flew (between 1953 and 1956)
- The Mirage 01/ I and then II
- The Durandal
- The SO-9050 Trident
All were powered by small engines such as the Turbomeca Gabizo of 1500 kgp of thrust or the Viper. This program was the high altitude complement of the NATO LWF fighter.
Then , the program evolved to a mach 2 interceptor. The Mirage II was never finished and its wings were used for the very first Mirage III, the -01 (17/11/1956).
The Durandal had flew in April 1956, the Trident had become the Trident II.
Then, in 1956, the program evolved again to a multirole mach 2 fighter, eliminating the rocket-powered Trident.
So the final oposed the Mirage III-01 to the Durandal, both powered by the 4500 kgp Atar-101 completed by a SEPR rocket (1500 kgp).
Operational variants would have had the Atar-9 of 6000 kgp of thrust, these were the Mirage IIIA and Durandal IV.
As the Mirage was clearly superior to the Durandal, it won the competition and the Durandal IV was never build.
Nord 5000 Harpon
At the time, only 3 publics firms (SNCA N, SE and SO) and some private (Breguet, Dassault and Morane Saulnier) were able to build this kind of aircrafts.
The Nord-1400 Gerfault was not a contender for this program; the Nord Aviation entry was the Nord 5000 Harpon (I made a thread on it recently)
Others were the MS-1000 and Breguet 1002. These remains paper projects, but three others aircrafts flew (between 1953 and 1956)
- The Mirage 01/ I and then II
- The Durandal
- The SO-9050 Trident
All were powered by small engines such as the Turbomeca Gabizo of 1500 kgp of thrust or the Viper. This program was the high altitude complement of the NATO LWF fighter.
Then , the program evolved to a mach 2 interceptor. The Mirage II was never finished and its wings were used for the very first Mirage III, the -01 (17/11/1956).
The Durandal had flew in April 1956, the Trident had become the Trident II.
Then, in 1956, the program evolved again to a multirole mach 2 fighter, eliminating the rocket-powered Trident.
So the final oposed the Mirage III-01 to the Durandal, both powered by the 4500 kgp Atar-101 completed by a SEPR rocket (1500 kgp).
Operational variants would have had the Atar-9 of 6000 kgp of thrust, these were the Mirage IIIA and Durandal IV.
As the Mirage was clearly superior to the Durandal, it won the competition and the Durandal IV was never build.
Nord 5000 Harpon