The airplane has two imposing TPE331-14 engines, each capable of producing 1,600+ SHP de-rated to 1,000 HP at its five-bladed MT propellers. Pete Bedell is a pilot for a major airline and co-owner of a Cessna 172M and Beechcraft Baron D55. 0000052368 00000 n At any speed less than 130 knots, the aircraft starts to oscillate. Environmental systems, including the cabin blower, heater and air conditioning, fuel systems-including fuel line chafing, landing gear and horizontal stabilizer/elevator were the elements causing the most frequent reports. boring aircraft. Theres a loophole in the regulations, in that there is no requirement for long-period dynamic longitudinal stability, only one for static stability. It is noteworthy that there have been few reported problems with corrosion. Or both. Design work on the Cheyenne began in 1965 as a turboprop-powered version of Pipers Pressurized Navajo. The PA-42 Cheyenne is a larger development of the earlier PA-31T Cheyennes I and II (which are, in turn, turboprop developments of the PA-31 Navajo). Serial Number: 425527026. True! Click here to view the Piper PA-31T Cheyenne features guide. This line of thinking has prompted another round of endless cerebration. During certification, longitudinal stability was an issue, and an elaborate "stability augmentation system" (SAS) was installed in the II series.. However, the whole family lived up to the Piper reputation of offering a lot of airplane for the money. One hundred seventy-seven flight hours from now, the engines on our 1980 Piper Cheyenne will reach TBO. 181 89 Too. 0000008972 00000 n The dominating features are the pair of broad Dowty The fuel system can be monitored through several gauges on the instrument panel through a dual needle type fuel quantity indicator, two fuel flow gauges, and two fuel pressure gauges. CHEYENNE 400LS SPECIFICATIONS & PERFORMANCE PERFORMANCE STANDARD ATMOSPHERE CONDITIONS CRUISE SPEEDS - TAS TAKE-OFF DISTANCE Mid-Cruise weight (10,000 lbs) Normal procedures at 12,050 lbs (5466 kg) (Maximum cruise power) Lift-off speed (IAS) 107 kts (198 kph) 24,000 ft (7315 m) 351 kts (650 kph) Ground run 1425 ft (434 m) . 0000008359 00000 n Discussion in 'Flight Following' started by NadJ, Aug 9, 2021. 0000042996 00000 n surprised by the heavy controls. Icing conditions existed. The difference between the left front seat and a cabin chair can be substantial, especially if propeller-induced vibration is being transmitted from the aft fuselage). In Kellys words: None of these planes should be running around without this modification.). document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. 0000012785 00000 n There is little or nothing to attribute to the PA-31T design in these accidents. Here is one more: if you dont have the time and money to spend on learning what is required and then doing it, stick to your local rent-a-wreck for your aviating needs. Requirement is for 1600nm IFR range with 2 pilots and 1100lbs of payload. Three old outdated airframes that are very expensive to operate and maintain. It has a wider cg range than the I or IIXL (138 inches aft limit compared to 136) and is far more sensitive in pitch (more on this below). On the other hand, we were totally unprepared for the $4,000 annunciator-panel repair, the frequent heater and air-conditioner repairs and the little valve that controls the bleed air pressure to. Tip tanks became standard. in other turboprops. With the Cheyenne, on the other hand, we have had no downtime for maintenance whatsoever, except for the regular scheduled inspections. Oh, my, would I love one. The majority of the flights were flown above most airliners in comfort, style and at a fuel cost less than economy class tickets for the same itinerary. 0000012150 00000 n complete we lined up on Lanseria's runway 06. Ive talked to several experts. Back in Required fields are marked *. Handling While the basic nature of inertia and mass can make a Cheyenne a lumbering handful for pilots used to lighter airplanes, within their category they are responsive and nimble. The PA-31T requires more of pilots than the -31T1 or -31T2 in terms of systems knowledge, planning and in-flight management. The IIXL is the winner in terms of payload/range and loading envelope. Piper still stocks a lot of parts, but if a Cheyenne part is unavailable, Piper will still make you one. Radar and known-icing equipment are. Cabin seating is commonly arranged in a four-seat club with three additional seats available. Late in 1966 a Navajo was ferried to Edward J. Swearingens facility for installation of a pair of PT6A-6A engines. (Note that the longitudinal stability problem is at its worst at aft loadings, and if the range is exceeded all bets are, of course, off.). power setting above this will start sliding the tyres. Vref pegs the 400LS value at $1 million for a 1984 model to $1.22M for a 1992 model. What could. 0000003996 00000 n off and attention must then be shifted to the EGTs. 0000006751 00000 n The Cessna Citation became the economical jet of choice for business travel. One 24 volt, 43 ampere hour air-cooled nickel-cadmium battery, located in the nose section furnished power for engine starting and also serves as a reserve source of emergency electrical power. Swearingen to develop the Twin Comanche. more and further and does it all for about half the cost of a comparable I would have had to maintain it, and I dont enjoy the thought of that. Only 24 -31T3 commuters were built in the roughly two year life span of the design. The Cheyenne 400LS is the largest and most powerful of Piper's turboprop twins, derived from the PA-31 Navajo. This is more a nuisance than a problem. The only barricade between me and accomplishment of such grown-up activities is the fact that I love our Cheyenne. Even at that, parts are an issue for me. Interior appearance and quality were improved with time, especially in the last two or three years of production as Piper learned to deal with the upscale corporate market. cut-off buttons should the temperatures exceed the 820 limit. Original PA-31T The first production Cheyenne III flew for the first time on May 18, 1979, and FAA certification was granted in early 1980. 0000011922 00000 n These airplanes are fast, efficient and beautiful. 0000096310 00000 n For both individual and corporate owners, the early Cheyennes make sense as step-up purchases, as long as the combination of low price, low maintenance, and high-performance remains in vogue. This forward movement of the airplanes empty-weight CG, along with a climb power limitation of 500-shp, allowed the IIXL to be certified without the stability augmentation system. Engine limiters take care of torque and temperatures with minor pilot input, if any. The Piper Cheyenne 400LS is powered by two Honeywell TPE 331-14 engines with 1,000 shp each. Each inboard main cell has two submerged boost pumps to supply fuel to the engine. There are a few reasons this might happen: To regain access, please make sure that cookies and JavaScript are enabled before reloading the page. Reg: N7222F photos. aircraft design. comes in. 10 Comments. Your email address will not be published. 0000147953 00000 n View photos, ownership, registration history, and more. If a person wanted to do that in a Cheyenne II, he could simply self-limit the -28 engines to the 500-HP output of the -11. The rules require that the pull be roughly proportional to the speed displacement; i.e., a 20-knot displacement from trim speed will require twice as much control pressure as a 10-knot deflection. The interior was upgraded and the instrument panel was redesigned, including a lower glare shield to improve visibility. 0000013910 00000 n No surprises there. At the time, Piper Aircraft was improving on its unpressurized and pressurized piston-twin line of the Piper Navajo and Mojave. An angle of attack sensor on the right side of the nose measures and transmits angle of attack to a simple computer which commands a servo to vary downspring tension. Registration #: N142LS. That engine runs a little hotter than before the hot section and burns a little more jet-A, but now it matches the left engine more closely. 0000093767 00000 n Its possible to fill up all eight of the IIXLs seats (with 170-pounders, that is), put 200 pounds each in the nose and aft baggage areas, still be within the loading envelope, and be just 20 gallons shy of full fuel. 8 answers and 5413 views Jun 15 2004. strengthened and lengthened, the props are huge paddle-blades with a I have never flown an aircraft that requires so much yoke movement to hand-fly above FL 230. Two feet were added forward of the wing leading edge. First flight of this proof-of-concept airplane occurred in the spring of 1967. shown on page 43; Piper hopes to display. Des Moines Flying Service does an excellent lob getting parts from any source possible. This seems like a time for study, contemplation, analysis and thoughtful decision-making. In that later issue, Kelly discusses a further change to the system Piper made with the 1980 model year: the addition of a bobweight to dampen long-period longitudinal oscillation tendencies. Trim must be run to fully nose up during the final approach and then conscious effort made to put in sufficient, gradual up elevator (gradual to keep from ballooning) to touch down on the main gear. Some people think the Cheyenne I is a better airplane because it has no SAS system. Are these big-engine Cheyennes as fast as they say? This trait can be traced to the Cheyennes roots in the Navajo airframe. Maximum climb power was reduced and recommended climb speeds raised to keep the airplane further from the SAS operating speed range (nominally, 121 KIAS and slower). little doubt that Piper's PA-42 Cheyenne 400LS is the hot rod of the Most of us know the addictive qualities of aso.com, controller.com and Trade-A-Plane. Pipers Cheyenne 400LS is one of those rare airplanes that has few compromises. The majority of the Cheyenne 400LS aircraft were fitted with nine seats, including a potty seat that can be completely enclosed by an accordion door neatly hidden in its furniture cabinet. Please contact Mike Shafer (315) 415-0401. 0000107367 00000 n The comments in the accident brief note that the regular pilot refused the trip because of the weather. %PDF-1.4 % Back in the 1980s, Piper employed Gen. Chuck Yeager to set various time-to-climb records in the 400LS. company on the then new Citation. 0000051810 00000 n J. Lynn Helms became the boss that same year. I believe they only built 44 of them. On the whole, we are pleased with it. been approved for five bladed scimitar propellers from Hartzell, which