TR-4

Seats: 5 5
Power: 180 hp134 kW
Cruise: 143 kt266 km/h
US register: 5 aircraft5 aircraft

Tri-R Technologies TR-4 — Photo: ZLEA · CC BY-SA 4.0Photo: FlugKerl2 · CC BY-SA 3.0

About the TR-4

Tri-R Technologies TR-4 is a four-place homebuilt aircraft featuring a low-wing configuration and a tricycle landing gear layout. Suited for amateur builders, the composite aircraft accommodates a pilot and passengers behind a single horizontally opposed piston engine.

Engines fitted

5 aircraft

Engine	Power	Aircraft
Lycoming O-360	180 hp	2
Lycoming IO-360	200 hp	2
Franklin 6A-350	235 hp	1

Specifications

KIS TR-4 Cruiser · Lycoming IO-360

Dimensions

Length: 23 ft 0 in 7.01 m7.01 m 23 ft 0 in
Wingspan: 28 ft 10 in 8.80 m8.80 m 28 ft 10 in
Wing area: 135 sq ft 12.5 m²12.5 m² 135 sq ft

Weights

Empty weight: 1,200 lb 544 kg544 kg 1,200 lb
Max take-off weight: 2,400 lb 1,089 kg1,089 kg 2,400 lb
Fuel capacity: 51.0 US gal 193 L193 L 51.0 US gal

Performance

Cruise speed: 143 kt 266 km/h266 km/h 143 kt
Max speed: 161 kt 298 km/h298 km/h 161 kt
Stall speed: 48 kt 88 km/h88 km/h 48 kt
Range: 695 nm 1,287 km1,287 km 695 nm
Service ceiling: 17,000 ft 5,182 m5,182 m 17,000 ft
Rate of climb: 1,200 ft/min 6.1 m/s6.1 m/s 1,200 ft/min

Powerplant

Engine: Lycoming IO-360
Engine power: 180 hp 134 kW134 kW 180 hp

Capacity

Seats: 5

Manufacturer: Tri-R Technologies
Country: United States
On the US register: 5
Registered in: United States

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TR-4 running costs

$206 an hour

Hours a year Aircraft value (USD)

A year
	Low	Typical	High
Fuel	$6,191	$7,954	$9,229
Oil	$144	$180	$234
Engine overhaul reserve	$2,167	$2,667	$4,833
Annual inspection and maintenance	$2,500	$3,500	$4,500
Hangar	$3,000	$6,300	$9,600

Total	$14,002	$20,601	$28,396
Per hour	$140	$206	$284