The Fibera KK-1e Utu (English: Mist) is a Finnish mid-wing, T-tailed, single-seat, FAI Standard Class glider that was designed by Ahto Anttila and produced by Fibera in the 1960s.[1][2][3][4]
| KK-1e Utu | |
|---|---|
| |
| Role | Glider |
| National origin | Finland |
| Manufacturer | Fibera |
| Designer | Ahto Anttila |
| First flight | August 1964 |
| Introduction | 1964 |
| Status | Production completed |
| Number built | 22 |
Design and development
editThe KK-1e was one of the first fibreglass sailplanes produced, first flying in 1964.[1][2]
The KK-1e has a 15.0 m (49.2 ft) span wing, with a single spar. The wing employs a NACA 63-618 airfoil at the wing root, changing to a NACA 63-612 section at the wing tip. The wing features a split terminal velocity trailing edge combination spoiler/dive brake. The landing gear is a fixed monowheel.[1][2][5]
The aircraft was not type certified and the one aircraft imported into the United States was registered with the Federal Aviation Administration in the Experimental - Exhibition/Racing category.[1][2][3]
Operational history
editOnly one KK-1e was imported into the United States in 1967. As of July 2011 this aircraft was still registered with the FAA to its original owner.[3]
Aircraft on display
edit
Specifications (KK-1e)
editData from Sailplane Directory, Soaring and Karhulan ilmailukerho Aviation Museum[1][2][6]
General characteristics
- Crew: one
- Length: 6.5 m (21 ft 4 in)
- Wingspan: 15.0 m (49 ft 3 in)
- Wing area: 11.2 m2 (121 sq ft)
- Aspect ratio: 20:1
- Airfoil: wing root: NACA 63-618, wing tip: NACA 63-612
- Empty weight: 187 kg (412 lb)
- Gross weight: 310 kg (684 lb)
Performance
- Never exceed speed: 249 km/h (155 mph, 135 kn)
- Maximum glide ratio: 35:1 at 50 mph (80 km/h)
- Rate of sink: 0.61 m/s (120 ft/min) at 46 mph (74 km/h)
- Wing loading: 27.6 kg/m2 (5.65 lb/sq ft)
See also
editRelated development
- Tervamäki ATE-3, a homebuilt autogyro that recycled an Utu nose section
Related lists
References
edit- ^ a b c d e Activate Media (2006). "KK-1e Utu Fibrera". Archived from the original on 25 August 2012. Retrieved 15 July 2011.
- ^ a b c d e Said, Bob: 1983 Sailplane Directory, Soaring Magazine, page 87, Soaring Society of America November 1983. USPS 499-920
- ^ a b c Federal Aviation Administration (July 2011). "Make / Model Inquiry Results N1070". Archived from the original on 5 March 2016. Retrieved 15 July 2011.
- ^ a b Finnish Aviation Museum (2009). "Fibera KK-1e UTU". Retrieved 1 July 2011.
- ^ Lednicer, David (2010). "The Incomplete Guide to Airfoil Usage". Archived from the original on 20 April 2010. Retrieved 1 July 2011.
- ^ a b Karhulan ilmailukerho Aviation Museum (n.d.). "Fibera KK-1e Utu (OH-LKF)". Archived from the original on 14 September 2011. Retrieved 15 July 2011.
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