Whisper X350 Generation II
X350 Generation II | |
---|---|
Role | Amateur-built aircraft
|
National origin | South Africa |
Manufacturer | Whisper Aircraft |
Status | In production (2020) |
Developed from | Whisper Aircraft Whisper |
The Whisper X350 Generation II is a
The X350 Generation II designation indicates a design top speed goal of 350 km/h (189 kn), with the larger engine fitted.[1]
Design and development
The aircraft features a cantilever
The aircraft is predominately made from vacuum-bagged, post-cured
The design's 26.17 ft (8.0 m) span wing has an area of 122 sq ft (11.3 m2) and mounts plain
The fuel capacity is 32 U.S. gallons (120 L; 27 imp gal) in two fuselage tanks, although future production kits will have 63 U.S. gallons (240 L; 52 imp gal) in a wet wing.[1]
The design has a single centre console-mounted
The 51% compliant kit includes a mated fuselage and pre-closed wing structures. The aircraft can be constructed in a two-car garage. Construction time from the supplied kit is estimated by the manufacturer as 500 hours.[1][2]
The design as load factors of +6/-4 g, but is not designed for aerobatics. The instrument panel is made from aluminum. The seats and rudder pedals are independently adjustable. There are optional rear fuselage windows for improved visibility, LED navigation lights and strobe lights on the wing tips and tail. Lightning protection is a factory option.[1][2]
Operational history
By May 2020 one example had been registered in the United States with the Federal Aviation Administration.[3]
In a 2020 review, Kitplanes writer LeRoy Cook stated, "the Whisper is a sharp-looking side-by-side two-seater, particularly when perched on tailwheel landing gear. Tricycle gear will probably be a popular option, out of necessity for tamer handling and greater tolerance of gusty winds." Cook noted from his evaluation flight, "from my brief sampling, I’d like to see a little more cockpit ventilation, more foot room after the wing fuel system is installed, and enhanced stability with an elevator trim system. I’d also like to revisit it with tricycle gear." He concluded, "there’s a lot to like about the Whisper X350 Gen II: its sleek looks, the blazing cruise speed, a roomy cockpit, and an apparent ease of assembly."[1]
Specifications (X350 Gen II)
Data from Kitplanes[1] and manufacturer[2]
General characteristics
- Crew: one
- Capacity: one passenger
- Length: 6.86 m (22 ft 6 in)
- Wingspan: 7.98 m (26 ft 2 in)
- Wing area: 11.3 m2 (122 sq ft)
- Empty weight: 550 kg (1,213 lb) (typical)
- Gross weight: 970 kg (2,138 lb)
- Fuel capacity: 63 U.S. gallons (240 L; 52 imp gal) in three fuselage tanks
- Powerplant: 1 × horizontally-opposed, piston aircraft engine, 130 kW (180 hp)
- Propellers: 2-bladed Whirl Wind Propellers GA 220L, ground adjustable
Performance
- Maximum speed: 341 km/h (212 mph, 184 kn)
- Cruise speed: 324 km/h (201 mph, 175 kn) at 75% power
- Stall speed: 96 km/h (60 mph, 52 kn) flaps down
- Range: 1,830 km (1,137 mi, 988 nmi)
- Endurance: 6.6 hours
- Service ceiling: 7,800 m (25,500 ft)
- g limits: +6/-4
- Rate of climb: 7.8 m/s (1,540 ft/min)
- Wing loading: 86.3 kg/m2 (17.67 lb/sq ft)
References
- ^ a b c d e f g h i j k Cook, LeRoy (12 May 2020). "Kitplanes Flight Review: Whisper X350". Kitplanes. Archived from the original on 13 May 2020. Retrieved 13 May 2020.
- ^ a b c d e f Whisper Aircraft (2019). "X350 Gen II". whisperaircraft.com. Archived from the original on 19 May 2020. Retrieved 13 May 2020.
- ^ Federal Aviation Administration (13 May 2020). "Make / Model Inquiry Results". Retrieved 13 May 2020.