The T-65 Noranda two seat light cabin monoplane was designed by J.O. Noury of Noury Aircraft Ltd.
Mixed construction is employed, with fabric covering, and dual controls are fitted.
Soon after competition of the prototype in 1947, the Noury Aircraft company was purchased by the Canadian Car and Foundry Co and development was abandoned.
Engine: Continental C65, 65 hp Wingspan: 33 ft Length: 23 ft 6 in Height: 7 ft Empty weight: 810 lb Loaded weight: 1380 lb Max speed: 110 mph Cruise: 95 mph
Built the Noury T-65 Noranda in 1947. The Noury Aircraft company, prototype and all rights were sold to Canadian Car and Foundry Co but development was abandoned.
The Northrop Special was built by Russ Northrop in 1952. Powered by an 85hp Continental C-85, he inverted gull-wing midget racer was competed into 1955, then was sold as N33N.
Courtesy Don Stits
It is sometimes credited to Northrop Aviation, but there was no connection, and the spelling of Russell’s name is seen both ways.
The Northrop X-4 was the first example of an X-vehicle intended to research something besides supersonic flight. The jet-powered X-4 was designed to evaluate the characteristics of a tailless aircraft at high subsonic speeds, a configuration believed to hold a great deal of promise for future aircraft.
The final Northrop flying wing design, although it could more accurately be described as a tailless aircraft, was the XS-4 Skylancer, a transonic research vehicle with two 726kg thrust Westinghouse turbojets. Later redesignated X-4, the first of two aircraft flew at Muroc on 16 December 1948, followed by the second on 7 June 1949.
Although not designed for supersonic speeds, the X-4 nevertheless proved that tailless swept-wing aircraft were not well suited for high transonic or supersonic performance. Pitch, roll, and yaw instabilities were very pronounced at speeds in excess of Mach 0.88, and there was no solution to the problem using the technology available at the time. The last flight was made on 29 September 1953. After a total of 102 flights, the highest achieved was 42,300 feet (approx) and fastest Mach 0.90 (630 mph) (approx).
Both aircraft survived the flight test program, and there were no serious accidents during the 102 flights. The first X-4 was on display at Edwards AFB. The second aircraft, after long being displayed at Maxwell AFB, Alabama, moved to the Air Force Museum in Dayton, Ohio.
X-4 Bantam Engines: 2 x Westinghouse turbojets, 726kg each Max take-off weight: 3175 kg / 7000 lb Wingspan: 8.18 m / 26 ft 10 in Length: 7.1 m / 23 ft 4 in Wing area: 19 sq.m / 204.51 sq ft Max. speed: 1000 km/h / 621 mph Crew: 1
The USA also put considerable effort into the creation of lifting-body vehicles as the design precursors of manned re¬entry vehicles. These lifting-body vehicles were intended to prove the viability of wingless flying machines that could re-enter the atmosphere at hypersonic speed after orbital flight and fly back to their bases. The two main protagonists of such vehicles were Martin Marietta and Northrop, the former with the X-24, and the latter with the M2-F2 and HL-10. In mid-1964 the US National Aeronautics and Space Administration (NASA) contracted Northrop to produce the M2-F2 and HL-10. The HL-10 was similar to the M2-F2 in most respects other than the camber of its D-section lifting body. On the M2-F2 the flat and curved surfaces were on the top and bottom respectively, but on the HL-10 these positions were reversed.
The HL-10, powered by the XLR-11 rocket engine, was dropped from beneath the wing of a Boeing B-52 on 22 December 1966. The first powered flight using rockets was made by the HL-10 from a B-52 on 13 November 1968.
Major Jerauld Gentry standing in front of the HL-10
Engine: Thiokol (Reaction Motors) liquid-propellant rocket, 8,000 lb (3,630 kg) st Max width: 15 ft 1 in (4.60 m) between fin tips Length: 22 ft 2 in (6.76 m) Planform area: 162 sq ft (15.05 sq.m) Max launching wt: 9,400 lb (4,265 kg) Max landing wt: 8,000 lb (3,630 kg) Crew: 1 Max speed achieved: Mach 1.9 Max altitude achieved: 27430m
In mid-1964 Northrop was contracted by the US National Aeronautics and Space Administration (NASA) to produce two all-metal wingless lifting-body re-entry research vehicles, based on experience gained with the Northrop M2-F1 wooden glider, which made more than 500 flights in 1963-64. These lifting-body vehicles were intended to prove the viability of wingless flying machines that could re-enter the atmosphere at hypersonic speed after orbital flight and fly back to their bases.
The two new vehicles were designated M2-F2 and HL-10 and differed in under- and upper-surface fuselage shapes. First flight of the M2-F2 as a glider was made on 12 July 1966 when it was dropped from beneath the wing of a Boeing B-52 at 14235m to make a successful 306km/h landing four minutes later.
Bruce A. Peterson, NASA test pilot, piloted the M2F2 on 10 May 1967 landing accident that served as the opening footage for the television show ‘The six million dollar man’.
Wreck of NASA 803, 10 May 1967
The M2-F2 was badly damaged and, subsequently rebuilt as the M2-F3 made its first powered flight on 2 June 1970, attaining Mach 0.8 at 16155m on three of its four XLR11 rocket chambers. Later in the programme it recorded a height of nearly 27430m and speed of Mach 1.7. The M2-F3 had triple rather than double vertical tail surfaces.
When testing ended in 1973 these aircraft had provided much information which was to prove invaluable for NASA’s Space Shuttle programme.
Sponsored by the USAF, the X-21A was designed to explore the feasibility of utilizing full-scale boundary layer control on a large aircraft. Paper and wind tunnel studies conducted by Northrop had indicated boundary layer control would offer numerous performance benefits. After successfully demonstrating the ability to achieve laminar flow over approximately 75 percent of the wing surface, the X-21As were used to explore the impact of rain, sleet, snow, and other weather anomalies on the system.
The two X-21As were modified from Douglas WB-66D Destroyer light bombers that had been retired from active service, and were equipped with a completely new wing and engine nacelles that were hung on either side of the aft fuselage.
First flown on 18 April 1963, the X-21As demonstrated that the boundary layer control technique, called laminar flow control, was both effective and viable. However, they also showed that these benefits came at a significant maintenance penalty as the numerous small slots required for the airflow constantly plugged up.
Last flown in 1964, the highest speed achieved was 560 mph (approx) and an altitude of 42,500 feet (approx).
Both X-21As survived the flight test program and were left in a bad state of repair on the photo range at Edwards AFB.
Based on the company-funded P530 Cobra project, the YF-17 was developed to meet a USAF Request for Proposals for a lightweight day air superiority fighter. Of the companies making submissions for the RFP, Northrop and General Dynamics were each awarded contracts on 13 April 1972 for their contenders as the YF-17 and YF-16 respectively.
The YF-17 Cobra prototype (72-01569), the first of two for competitive evaluation against the General Dynamics YF-16, made its maiden flight on 9 June 1974. The second prototype made its first flight on August 21 1974 from Edwards AFB, California. These were powered by two General Electric YJ101-GE-100 engines rated at 6532kg with afterburning. Proposed armament comprised one 20mm rotary cannon and two AIM-9 Sidewinder AAMs, provision being made for one centreline and four wing stores stations to give the YF-17 multi-mission capability.
Northrop’s YF-17A prototypes failed to win a production contract for the USAFs LWF (lightweight fighter) requirement, losing out to the General Dynamics YF-16A in 1974. Developed later by Northrop and McDonnell Douglas, it is in production for the US Navy as the F/A-18 Hornet single-seat naval strike fighter.
North¬rop’s YF 17 #1 prototype was flying a number of research missions for NASA at Edwards AFB in California. One of two ob¬jectives for the twin engine fighter was collection of in flight pressure data around the afterbody of the air¬craft and engine nozzles. The data was to be compared with wind tunnel information in an effort to improve wind tunnel prediction techniques which will help de¬signers of future fighter aircraft.
YF 17 Engines: two General Electric YJ101-GE-100, 6532kg with afterburning Span: 10.67 m (35 ft 0 in) Length: 16.92 m / 55 ft 6 in Height: 4.42 m / 14 ft 6 in Wing area: 32.51 sq.m / 349.93 sq ft Max take-off weight: 13894 kg / 30631 lb Loaded weight: 9526 kg / 21001 lb Maximum speed: Mach 2+ / 2071 km/h / 1287 mph Range w/max.fuel: 4506 km / 2800 miles
A team under Welko Gasich designed the N 156F in the mid 1950s as an economical, light fighter, cheaper to buy and operate than the large Mach 2 designs then being constructed. The Department of Defense showed little interest, but a two seat trainer version (at first for the Navy, later the USAF) bore fruit and was produced in quantity as the T 38 Talon. This provided an underpinning for the N 156F, which after various changes was released to manufacturing in late 1957, Northrop deciding to build three. The first, by this time called the Freedom Fighter, flew on July 30, 1959. The prototype had a Department of Defense (Air Force) serial number but no national markings. On April 25, 1962, the US government announced that it was ordering the aircraft into quantity production as the standard fighter to be supplied through the Military Assistance Program to Allied and friendly nations. Since then further contracts have followed, paid for by the recipient governments.
N-156F
The low wing is swept back 25 degrees, with ailerons at mid-span, and trailing-edge flaps inboard. Full span leading-edge flaps and a conventional rudder is fitted, and all-moving tailplane. Two air-brakes are under the centre of the area-ruled fuselage. The tricycle undercarriage has a single wheel on each unit. The mains retract inward into the fuselage and the nose wheel retracts forward.
Redesignated F 5A (single seat) and F 5B (tandem dual control version), the Freedom Fighter began to come off the production line in 1963. Powered initially by two General Electric J85 13 engines each rated at 1383 kg (3050 lb) static thrust with full afterburner, the F 5A was a simple machine with no radar other than a ranging set for the two 20 mm (0.79 in) Pontiac M 39 cannon mounted above the nose.
Total internal tankage was 2200 litres (484 Imperial gal), and two Sidewinder air to air missiles could be carried on the wing tips in place of area ruled (Coke bottle shape) drop tanks. Early in development five further hard points were added for a total external load of 2000 kg (4410 lb), the total load of ordnance of all kinds, including guns and ammunition, being 2812 kg (6200 lb).
More than 1000 of this first generation F 5 series were produced, including more than 300 built under licence in Canada, Spain and Taiwan. Canadian aircraft, assembled by Canadair incorporated parts built in the Netherlands in a two nation production programme, with J85 CAN 15 engines built by Orenda. In all except the first production version, the 13 engines were rated at 1850 kg (4078 lb) thrust, except for the CF 5 (Cana¬dian) and NF 5 (Netherlands) versions in which the rating was 1950 kg (4299 lb).
Recipients of these F/CF/NF 5A, B, D and G aircraft included Brazil, Canada, Ethiopia, Greece, Iran, Jordan, South Korea, Libya, Malaysia, Morocco, the Netherlands, Norway, Pakistan, the Philippines, Saudi Arabia, Spain, Taiwan, Thailand, and South Vietnam. The USAF also bought a small number to equip a foreign customer training squadron at Williams Air Force Base, and in 1965 also bought one squadron of single seat F 5A aircraft for evaluation in South Vietnam. The equipment fitted was varied for richer customers, and eventually included inertial navigation for Saudi Arabia and various changes to improve short field performance including increased wing incidence, two-position nose gear, arrester hook, provision for ATO rockets and uprated engines. These customers options were specified by Canada, the Netherlands and, except for uprated engines, Norway.
In April 1964 it was reported Norway had confirmed it will purchase 64 F-5A, with option to buy 20 more. The initial order came to $75 million, including spares and training cost. Deliveries were to be made in 1966-67.
1966 Vietnam F-5
In 1969 the US government held a competition for a successor to the F 5 called IFA (International Fighter Aircraft). Northrop had already fitted an F 5 with two of the more powerful J85 GE 21 engines, each rated at 2227 kg (4910 lb) thrust, and fully investigated the improved performance envelope thus obtainable. It proposed an improved F 5, called F 5E Tiger II, as the IFA, and this won the competition in November 1970. The F 5E has a broader fuselage increasing fuel capacity and wing span a redesigned wing with leading edge manoeuvre flaps, based on an earlier flap fitted to the NF 5A and B, positioned by a switch on the pilot’s throttle working in conjunction with the landing flaps on the trailing edge. It also has large wing root leading edge extensions, Emerson APQ159 X band radar, hard points for a total external load of 3175 kg (7000 lb) and considerably altered and enhanced avionics. Provision is made for a detachable probe for inflight refuelling, and a further list of customer options includes ATO rockets, antiskid brakes (the arrester hook is standard), the ‘FR’ nose, chaff/ECM pods, improved ejection seats and a wide range of special target sensing or designations, weapon guidance and countermeasure kits. The first F-5E was flown in August 1972
By 1978 more than 1000 F 5Es and tandem seat F 5F Tiger IIs had been delivered, and orders had been placed for some 1500 from Brazil, Chile, Ethiopia (supplied by Iran after a US embargo), Iran, Jordan, Kenya, Malaysia, Morocco, Peru, Philippines, Saudi Arabia, Singapore, South Korea, Switzerland, Taiwan, Thailand, Tunisia and South Vietnam. In February 1978, the US government agreed to sell 50 (probably a mix of Es and Fs) to Egypt ‘as a reward for President Sadat’s peacemaking efforts’. Further aircraft had been supplied to the USAF and US Navy for use in DACT (Dissimilar Aircraft Combat Training), the F 5E taking the part of aggressor’ MiG 21 fighters which it resembles in size and to some degree in characteristics. The tandem seat F 5F, of which some 100 have been delivered, has a longer fuselage, a single gun and reduced gross weight.
Derived from the earlier F-5A/B Freedom Fighter, the F-5E/F, powered by two 22.24kN General Electric J85 turbojets, first flew on August 11, 1972. Its armament comprises twin 20mm cannon, two AIM-9 Sidewinder, plus up to 3,l75kg of stores on one under-wing and one under-fuselage hard-points. Development of a two-seater conversion trainer counterpart of the F-5E Tiger II was approved early in 1974, and the F-5F Tiger II (73-0889) first flew on 25 September of the same year. The airframe is basically that of the F-5E lengthened by 3 ft 6.5 in (1.08 m) to allow the insertion of a second ejector seat, displays, and controls under a lengthened canopy. Though one of the F-5E’s two 20-mm cannon is removed, the F-5F still has the F-5E’s fire-control system with APQ-157 multi-role radar, and retains all five hardpoints for full combat capability. Some aircraft have an inertial navigation system and provision for a laser designator pod. About 200 F-5Fs were produced, and such aircraft serve with most F-5E operators. Many aircraft are being updated in a series of programs concerned mostly with the F-5E.
1975 delivery of F-5E to Royal Malaysian Air Force
The F-5E/F has also been produced under licence in South Korea, Switzerland, and Taiwan.
The Northrop F-5 Freedom Fighter/Tiger family has also been developed to perform photographic reconnaissance duties; approximately 100 examples of the RF-5A and RF-5E Tigereye have been built to 1984. The first and thus far most numerous reconnaissance model to appear was the RF-5A, 89 examples of which were constructed by the parent company between 1967-72. Featuring a nose-mounted battery of four KS-92A cameras, the RF-5A entered development in October 1963 in response to a US Air Force directive calling for a daylight tactical reconnaissance model of the Freedom Fighter for supply to friendly nations as part of military assistance and foreign military sales programmes. The RF-5A flew for the first time during May 1968, deliveries beginning during the following month with the initial aircraft going to Iran, which received 13 production examples as part of the military aid programme then in being, Subsequent customers comprised Turkey (20 aircraft), South Vietnam (10), Thailand (4), Greece (16), South Korea (8), Morocco (2) and Norway (16) before production of this model ceased in June 1972.
In addition to those aircraft produced by the parent company, the Freedom Fighter was also built under licence in Spain, 17 examples of the reconnaissance model known locally as the SRF-5A being completed by CASA. Many of the 89 CF-5As, 75 NF-5As and 2 seat CF-5Ds completed by Canadair for service with the armed forces of Canada, the Netherlands and Venezuela also featured latent reconnaissance capability, being fitted with camera noses. A total of 204 CF-5s were produced.
More recently, Northrop developed the RF-5E Tigereye for reconnaissance duties and this is a rather more sophisticated machine based on the F-5E Tiger II and using up to six cameras or infra-red scanners on quick-change pallets which can be inserted into the extended nose. Making its maiden flight on 29 January 1979, the RF-5E has thus far failed to find a ready market, the only customers being Malaysia, which took delivery of two during 1983, and Saudi Arabia, which has ordered 10. Malaysia operates two Northrop RF-5E Tigereyes on reconnaissance duties, equipped with Sidewinder air-to-air missiles on the winglips for protection. The type features an arrester hook in common with most US fighters.
Production of the F-5E/F light tactical fighter ended in 1986, and the last two aircraft were handed over to Bahrain on January 16, 1987. A total of 2,610 F-5s of all models were built over a 24-year period, includ-ing more than 1,400 F-5E/F Tiger IIs and RF-5E Tigereyes.
NASA employed a single F-5E airframe with a revised, deeper fuselage for experimentation in DARPA’s “Shaped Sonic Boom Demonstration” program. The airframe survived its testing and became a permanent fixture at the Valiant Air Command Museum in Florida.
A further development, the F-5G, became the Northrop F-20.
N-156F Engines: 2 x General Electric J85-GE-5, 3850 lb Wingspan: 26 ft 5 in Wing area: 171 sq.ft Length: 43 ft 1 in Height: 13 ft 1 in Wheel track: 10 ft 10 in MTOW: 16,110 lb Internal fuel: 500 Imp.Gal Max speed: 990 mph at 36,000 ft / M1.5 Cruise: 560 mph at 36,000 ft Max ROC: 28,000 fpm Max range: 2100 miles Hardpoints: 5 + 2 wingtip
F-5A Engines: 2 x GE J85 turbojet Span: 7.70 m (25 ft 3 in) Length: 14.38 m (47 ft 2 in) Gross weight: 9379 kg (20 680 lb) Maximum speed: 1489 km/h (925 mph) External load: 2812 kg (6200 lb) Seats: 1 Armament: 2 x 20mm cannon
RF-5A Type: single-seat tactical reconnaissance aircraft Powerplant: two General Electric J85-GE-13 turbojets, 1851 kg (4,080-1b) afterburning thrust Maximum speed at 10975 m (36,000 ft) 1489 km/h (925 mph) or Mach 1.4 Combat ceiling 15240 m (50,000 ft) Range w/max.payload: 592 km / 368 miles Max range 2595 km (1,612 miles) Empty weight 3667 kg (8,085 lb) Maximum take-off weight 8952 kg (19,736 lb). Span 7,70 m (25 ft 3 in) Length 14.38 m (47 ft 2 in) Height 4.01 m (13 ft 2 in) Wing area 15.79 sq.m (170 sq ft)
F-5B Span: 7.70 m (25 ft 3 in) Length: 14.12 m (46 ft 4 in) Gross weight: 9300 kg (20 500 lb) Maximum speed: 1424 km/h (885 mph) Seats: 2
F-5D Span: 7.70 m (25 ft 3 in) Length: 14.12 m (46 ft 4 in) Gross weight: 9300 kg (20 500 lb) Maximum speed: 1424 km/h (885 mph)
F-5E Span: 8.13 m (26 ft 8 in) Length: 14.73 m (48 ft 31 in) Gross weight: 11192 kg (24675 lb) Maximum speed: 1704 km/h (1060 mph)
F-5E Tiger II Engines: 2 x J85 GE 21 reheat 44.5 kN External load: 3175 kg (7000 lb) Span: 8.1 m Length: 14 m Wing area: 17.3 sq.m Empty wt: 4410 kg MTOW: 11,215 kg Warload: 3175 kg Max speed: 1.64 Mach Initial ROC: 10,515 m / min Ceiling: 15,790 m TO run: 610 m Ldg run: 762 m Combat radius lo-lo-lo: 220 km Fuel internal: 2563 lt Air refuel: Yes Armament: 2 x AAM, 2 x 20 mm Hard points: 5 + 2 wing tips
F-5F Tiger II Engines: two 5,000-lb (2,268-kg) reheated thrust General Electric J85-GE-21 B turbojets Maximum speed 1030 mph (1,658 km/h) or Mach 1.56 at 36090 ft (11000 m) Initial climb rate 32900 ft (10030 m) per minute Service ceiling 50800 ft (15485 m) Radius 599 miles (964 km) Empty weight 10,576 lb (4,797 kg) Maximum take-off 25,152 lb (11,409 kg) Wing span 26 ft 8 in (8.13 m) Length 51 ft 4 in (15.65 m) Height 13 ft 1.75 in (4.01 m) Wing area 186.0 sq ft (17.29 sq.m) Armament: one 20-mm cannon, and up to 7,000 lb (3,175 kg) of disposable stores