Civil Aviation Department RG-1 Rohini
RG-1 Rohini | |
---|---|
Role | Training sailplane Type of aircraft |
National origin | India |
Manufacturer | Veegal Engines and Engineering/Hindustan Aeronautics Limited |
Designer | S Ramamritham |
First flight | 10 May 1961 |
Number built | 107 |
The Civil Aviation Department RG-1 Rohini (Literally means Tropic Bird)[1] is an Indian two-seat training sailplane of the 1960s. A high-winged wooden monoplane, with side-by-side seating;at least 107 were built.
Development and design
The Technical Centre of the Indian Civil Aviation Department is its research and development arm, and started design and production of sailplanes in 1950. In the early 1960s S Ramamritham designed a two-seat training sailplane, the RG-1 Rohini, the first of four prototypes flying on 10 May 1961.[2] The Rohini is a monoplane of wooden construction, with a braced high wing and a low mounted tail positioned forward of the fin. Its crew of two sit side by side in an open cockpit, while the aircraft's undercarriage consists of a single unsprung wheel under the fuselage, with skids under the nose and tail.[3][4]
A total of 17 Rohinis were built by Veegal Engines and Engineering of Calcutta, with Hindustan Aeronautics Limited building a further 86 RG-1s by 1971.[4]
Specifications (RG-1 Rohini)
Data from Jane's All The World's Aircraft 1971-72[4] The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II[5]
General characteristics
- Crew: 2
- Length: 7.18 m (23 ft 7 in)
- Wingspan: 16.56 m (54 ft 4 in)
- Height: 2.33 m (7 ft 8 in)
- Wing area: 20.76 m2 (223.5 sq ft)
- Aspect ratio: 13.2:1
- Airfoil: NACA 4418 at root, NACA 4412 (modified) at tip
- Empty weight: 274 kg (604 lb)
- Gross weight: 494 kg (1,089 lb)
Performance
- Stall speed: 48 km/h (30 mph, 26 kn)
- Never exceed speed: 184 km/h (114 mph, 99 kn)
- Aerotow speed: 112 km/h (69.6 mph; 60.5 kn)
- Winch launch speed: 96 km/h (59.7 mph; 51.8 kn)
- g limits: +5 -2.5
- Maximum glide ratio: 21:1 at 77 km/h (47.8 mph; 41.6 kn)
- Rate of sink: 0.85 m/s (167 ft/min) at 61 km/h (37.9 mph; 32.9 kn)
See also
Aircraft of comparable role, configuration, and era Slingsby T.21 Related lists List of gliders
Notes
- ^ https://www.wisdomlib.org/definition/rohini [bare URL]
- ^ Taylor, John W. R. (1969). Jane's All The World's Aircraft 1969-70. London: Jane's Yearbooks. p. 541.
- ^ Taylor 1971, pp. 505-506.
- ^ a b c Taylor, John W. R. (1971). Jane's All The World's Aircraft 1971-72. London: Jane's Yearbooks. pp. 505–506. ISBN 0-354-00094-2.
- ^ Shenstone, B.S.; K.G. Wilkinson (1963). The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II (in English, French, and German) (1st ed.). Zurich: Organisation Scientifique et Technique Internationale du Vol a Voile (OSTIV) and Schweizer Aero-Revue. pp. 140–141.
References
- Shenstone, B.S.; K.G. Wilkinson (1963). The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II (in English, French, and German) (1st ed.). Zurich: Organisation Scientifique et Technique Internationale du Vol a Voile (OSTIV) and Schweizer Aero-Revue. pp. 140–141.
- Taylor, John W. R. (1969). Jane's All The World's Aircraft 1969-70. London: Jane's Yearbooks. p. 541.
- Taylor, John W. R. (1971). Jane's All The World's Aircraft 1971-72. London: Jane's Yearbooks. pp. 505–506. ISBN 0-354-00094-2.
- v
- t
- e
![India](http://upload.wikimedia.org/wikipedia/en/thumb/4/41/Flag_of_India.svg/23px-Flag_of_India.svg.png)
Directorates |
|
---|---|
Attached offices |
|
Autonomous bodies | |
Statutory bodies |
![Emblem of India](http://upload.wikimedia.org/wikipedia/commons/thumb/5/55/Emblem_of_India.svg/47px-Emblem_of_India.svg.png)
- UDAN
- Pradeep Singh Kharola(incumbent)
- John Mathai(Minister of Transport)
- N. Gopalaswami Ayyangar(Minister of Transport and Railways)
- Lal Bahadur Shastri(Minister of Railways and Transport)
- Hari Vinayak Pataskar
- Lal Bahadur Shastri(Minister of Transport and Communications)
- S. K. Patil(Minister of Transport and Communications)
- P. Subbarayan(Minister of Transport and Communications)
- Jagjivan Ram(Minister of Transport and Communications)
- Satya Narayan Sinha
- Nityanand Kanungo(As MoS)
- Neelam Sanjeeva Reddy(Minister of Transport, Aviation, Shipping, and Tourism)
- Karan Singh
- Raj Bahadur
- Kotha Raghuramaiah
- Purushottam Kaushik
- Mohammad Shafi Qureshi
- Janaki Ballabh Patnaik
- Anant Prasad Sharma
- Bhagwat Jha Azad (MoS, IC)
- Khurshed Alam Khan
- Jagdish Tytler
- Motilal Vora
- Shivraj Patil (MoS, IC)
- Arif Mohammed Khan
- Harmohan Dhawan(MoS, IC)
- Madhavrao Scindia
- Ghulam Nabi Azad
- V. Dhananjaya Kumar
- C. M. Ibrahim
- Ananth Kumar
- Sharad Yadav
- Syed Shahnawaz Hussain
- Rajiv Pratap Rudy (MoS, IC)
- Praful Patel (MoS, IC)
- Vayalar Ravi
- Ajit Singh
- Ashok Gajapathi Raju
- Narendra Modi
- Suresh Prabhu
- Hardeep Singh Puri(MoS, IC)
- Jyotiraditya Scindia(incumbent)