Panther owners we spoke to raved about single-engine performance, and pointed out that the stock Navajo's lackluster performance with one engine caged was a big reason for going to Colemill in the first place. "Colemill included the installation of those pumps with the cost of the conversion. Further developments of the Navajo, including the Chieftain, Mojave and Cheyenne, are described separately. It was also licence-built in a number of Latin American countries. Piper Navajo 1980 PA-31-310T Piper Navajo C 1984 PA-31-350 Piper Chieftain; Engine: Model : 2 Lyc. Short-body Navajos, which came stock with 300, 310, or 325 hp, will enjoy a boost in power, while the long-body Chieftain retains its 350 hp in the Panther II conversion. K2 Aviation flies one Piper Navajo Chieftain, a larger variant of the Piper Navajo. It’s a magic number and one not often seen in turboprop corporate aircraft. Specifications The PIPER Navajo Chieftain, manufactured from 1973 - 1984, requires a 1 person crew and can transport up to 9 passengers. Also impressive about the Panther are the reduced noise and vibration levels inside and outside of the airplane. Stock Navajo landing and taxi lights are mounted on the nose gear, making them useless for recognition purposes when the gear is retracted. Winglets, of course, had nothing to do with the reduced noise; it's the result of the Q-tip props. We asked Bill Gibson, owner of Gibson Aviation Inc., an East Coast charter outfit, why he chose to go with Colemill instead of simply hanging a couple of factory-remanufactured Lycomings on two Navajo Chieftains. The Piper Navajo Chieftain. It was flown back to Colemill recently for a 1,000-hour inspection, during which technicians complied with all ADs and service bulletins, removed and inspected the landing gear, and inspected and treated the entire airframe for corrosion. At 8,000', expect around 180Kts TAS, (deduct 1Kt per pax or 100Kg of payload). The Piper PA-31 Navajo is a family of cabin-class, twin-engine aircraft designed and built by Piper Aircraft for the general aviation market, most using Lycoming engines. Total in Huge Wing Lockers 300 lbs. Production of the Navajo ceased in 1983 (1800 aircraft built) and of the Chieftain in 1984 (1825 aircraft built). Like most turbocharged airplanes, the higher the Navajo gets, the better the speed will be, but with an unpressurized cabin it's unlikely that the airplane will see widespread duty in the flight levels. Also on the safety front is the option of closing the cowl flaps for takeoff in cooler weather. The Piper Navajo is a twin-engine aircraft purposefully built for passenger and/or freight charter. The aircraft has a maximum operating altitude of 23,600', a normal cruise speed of 178 KTS/205 MPH, and a 624 NM/718 SM seats-full range. Back in the cabin, it is quieter still. K2 Aviation flies one Piper Navajo Chieftain, a larger variant of the Piper Navajo. Meanwhile, cylinder-head temps remain in check while drag is reduced, resulting in a better rate of climb. and used with permission. Turbocharged Navajos are generally poor performers in cruise at lower altitudes, so the sooner you can climb, the sooner you can go fast. Stall Speed (dirty): 75 kts. The look of these props even prompted one FAA field inspector to mistakenly ground a Q-tip-prop-equipped airplane for that very reason. PA-31-310 - Wing span 12.40m (40ft 8in), length 9.94m (32ft 8in), height 3.97m (13ft 0in). Fuel burn throughout the climb was 70 gallons per hour total. The Navajo has the capacity for 1-2 crew members and 5-7 passengers. Cruise Speed: 220 kts. We will NEVER sell your email address or spam your inbox. The PIPER Navajo 310 has a 1,706' balanced field length and 2,216' landing distance. 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