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The "Ivolga" is a Russian ground-effect vehicle designed by Vyacheslav Vasilyevich Kolganov. This all-season, fuel-efficient, multi-purpose craft is primarily e
| EL-7/-7C/EK-12P Ivolga | |
|---|---|
.jpg) EK-12P "Ivolga" | |
| General information | |
| Type | Ground-effect vehicle |
| Manufacturer | RPE "TREK" |
| Designer | Vyacheslav Kolganov |
| Built by | Vyacheslav Kolganov |
| History | |
| Introduction date | 1999 |
| First flight | 1998 |
| Initiated | RPE "TREK" |
The "Ivolga" is a Russian ground-effect vehicle designed by Vyacheslav Vasilyevich Kolganov. This all-season, fuel-efficient, multi-purpose craft is primarily engineered to support law enforcement and environmental protection operations. Its key capabilities include territorial monitoring, patrolling, boarding and inspection, search and intercept missions, suspect apprehension, and vessel towing.
Design and construction
The Ivolga was a multi-purpose ground-effect vehicle (GEV) designed to carry up to 12 passengers or up to 1,200 kg of cargo. Built around a conventional aircraft configuration, it visually resembled the Volga-2 civilian GEV, which was developed under the guidance of Rostislav Alexeyev. The Ivolga featured wings with folding outer panels for ease of operation, two nose-mounted piston engines, float landing gear, and a T-tail stabilizer[1]. Elevators were controlled via rudder pedals, just like in conventional aircraft, while a control column was used to actuate the ailerons[2]. To clear obstacles, the Ivolga was capable of brief flight jumps (pop-ups), classifying it as a Type B ground-effect vehicle[1].
The vehicle was equipped with an essential suite of flight and navigation instruments, including a GPS-type satellite navigator. It also featured power supply, interior lighting, external signaling, cabin and engine compartment ventilation and heating, and fire suppression systems. In addition, marine equipment and life-saving appliances were installed onboard[2].
Aside from the rudder, directional control could be maintained by adjusting engine RPM or propeller pitch, disconnecting one of the propellers via a clutch, or deflecting sections of the trailing edge flaps using pedal-operated electric actuators[2].
Modifications
| Model name | Summary of characteristics and differences |
|---|---|
| EL-7 | Equipped with ZMZ-4064-10 engines (200 hp).[3] |
| EL-7C | Equipped with BMW-S38 engines (286 hp).[3] |
| EK-12P | Equipped with BMW M70 engines (326 hp). |
Specifications (EK-12P)
Data from JSC NPK "TREK" official website.[4]
General characteristics
- Crew: 1–2
- Capacity: 12 passengers / 1,200 kg (2,646 lb) payload
- Length: 16 m (52 ft 6 in)
- Wingspan: 12.7 m (41 ft 8 in)
- Height: 4 m (13 ft 1 in)
- Fuel capacity: 250 kg (551 lb) in internal tanks
- Draft: 0.5 m (1 ft 8 in) (during drift with engines shut down)
- Powerplant: 2 × BMW M70 internal combustion engines, 326 hp (243 kW) each
Performance
- Maximum speed: 220 km/h (140 mph, 120 kn)
- Cruise speed: 175–185 km/h (109–115 mph, 94–100 kn)
- Range: 1,200 km (750 mi, 650 nmi) at an altitude of 0.8 m (2 ft 7 in)
- Ferry range: 1,500 km (930 mi, 810 nmi)
- Endurance: 6 hours at an altitude of 0.8 m (2 ft 7 in)
- Service ceiling: 30 m (98 ft) (maximum flight jump altitude)
- Absolute ceiling: up to 3 m (9.8 ft) (static ceiling)
- Seakeeping: Sea State 3 (up to 3 points)
See also
References
- ^ a b Korshunov, Andrey (2019-09-12). "On poletit. Edva kasayas vody" [It Will Fly, Barely Touching the Water]. Baikal Info (in Russian). SM Nomer odin. Archived from the original on 2023-02-01. Retrieved 2023-12-01.
- ^ a b c "TREK EL-7 Ivolga". Ugolok neba [Sky Corner] (in Russian). 2004. Archived from the original on 2008-04-06. Retrieved 2023-12-01.
- ^ a b Kolganov, Vyacheslav; Sergeyev, Viktor (2001). "Mezhdu nebom i vodoy. O legkom mnogotselevom ekranolete EL-7 "Ivolga"" [Between Sky and Water. On the EL-7 "Ivolga" Light Multi-purpose Wing-in-Ground Effect Craft]. Krylya Rodiny (in Russian) (10): 1–3. ISSN 0130-2701. See the article on Krylya Rodiny Official Website.
- ^ Description of the Ivolga GEV on the developer's website JSC NPK "TREK".
External links
- Makarov, Yu. (March 2002). "Vysota - odin metr. Polet normalnyy" [An Altitude of One Meter. Flight Is Normal]. Nauka i Zhizn (3). Archived from the original on May 3, 2013. Retrieved January 22, 2013.
- Documentary film about Russian ground-effect vehicles on YouTube (in Russian)
[[Category:Ekranoplans]] [[Category:Aircraft first flown in 1998]] [[Category:Ground-effect vehicles of Russia]] [[Category:Aviation in Russia]] [[Category:Civil utility aircraft]] [[Category:Twin-engine aircraft]] [[Category:Propeller aircraft]]
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