Science Fair Projects Ideas - Yakovlev Yak-38

All Science Fair Projects

      

Science Fair Project Encyclopedia for Schools!

  Search    Browse    Forum  Coach    Links    Editor    Help    Tell-a-Friend    Encyclopedia    Dictionary     

Science Fair Project Encyclopedia

For information on any area of science that interests you,
enter a keyword (eg. scientific method, molecule, cloud, carbohydrate etc.).
Or else, you can start by choosing any of the categories below.

Yakovlev Yak-38


The Yakovlev Yak-38 (NATO reporting name: Forger) was Soviet Naval Aviation's first and only operational VTOL multi-role combat aircraft.

The prototype Yak-38 flew for the first time in 1971. It based on the Yak-36 'Freehand' technology demonstrator. Sea trials aboard the aviation cruiser Kiev were observed in 1975. About 75 Yak-38 aircraft were produced, including a small number of two-seat trainers (Yak-38U). These were based on the four Kiev-class aircraft carriers. In the mid-1990's these carriers were withdrawn from service, together with their Yak-38s.

The plane's operational effectiveness was limited and it was considerably inferior to its Western contemporary, the Harrier. The Forger was deficient in speed, weapons, and range compared to the Harrier. It relied on fixed vertical lift fans for vertical flight that were dead weight in horizontal flight. The Soviets were developing a greatly superior successor in the Yak-141 'Freestyle', but that program was drastically curtailed with the fall of the Soviet Union.

One interesting feature of the Yak-38 was hands-free landing. The aircraft could negotiate a telemetry/telecommand link with a computer system in the aircraft carrier which would allow it to be guided onto the deck with no interaction from the pilot. It was supposedly impossible to achieve a vertical landing under manual control.

Specifications (Yakovlev Yak-38M)

General Characteristics

  • Crew: 1
  • Length: 15.50 m (50 ft 1 in)
  • Wingspan: 7.32 m (24 ft 0 in)
  • Height: 4.37 m (14 ft 5 in)
  • Wing area: 18.5 m² (199 ft²)
  • Empty: 7,385 kg (16,281 lb)
  • Loaded: kg ( lb)
  • Maximum takeoff:13,000 kg (28,700 lb)
  • Powerplant:
    • 1x Tumanski R-27 V-300, 66.7 kN (6,800 kgf] or 15,000 lbf) thrust
    • 2x Koliesov ZM 35.0 kN (7,870 lbf) thrust each

Performance

  • Maximum speed: 1,110 km/h (627 mph)
  • Range: 370 km (231 miles)
  • Service ceiling: 12,000 m (39,400 ft)
  • Rate of climb: 4,500 m/min (39,400 ft/min)
  • Wing loading: kg/m² ( lb/ft²)
  • Thrust/Weight: 0.51:1 kgf/kg

Armament

  • four underwing pylons for 1,000 kg (2,200 lb) of stores

External link

Related content

Related development: Yak-36

Comparable aircraft: Harrier series

Designation sequence: Yak-32 - Yak-33 - Yak-36 - Yak-38 - Yak-39 - Yak-40 - Yak-41

03-10-2013 05:06:04
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
Science kits, science lessons, science toys, maths toys, hobby kits, science games and books - these are some of many products that can help give your kid an edge in their science fair projects, and develop a tremendous interest in the study of science. When shopping for a science kit or other supplies, make sure that you carefully review the features and quality of the products. Compare prices by going to several online stores. Read product reviews online or refer to magazines.

Start by looking for your science kit review or science toy review. Compare prices but remember, Price $ is not everything. Quality does matter.
Science Fair Coach
What do science fair judges look out for?
ScienceHound
Science Fair Projects for students of all ages
All Science Fair Projects.com Site
All Science Fair Projects Homepage
Search | Browse | Links | From-our-Editor | Books | Help | Contact | Privacy | Disclaimer | Copyright Notice