Sunday, March 31, 2024

CESSNA 340 Specifications, Cabin Dimensions, Performance

cessna 340 cruise speed

Its a very strong airplane and at altitude you cruise at or around maneuvering speed. Perusing the NTSB data, it seems to me that most, if not all, fatal accidents are secondary to pilot problems not mechanical problems. If you keep yourself sharp, this plane will not let you down. For many a business and family, a Cessna 340 is an ideal airplane.

FAA Fit? Wingman Med Backstops

If youre looking for the redundancy of two engines, pressurization, RAM quality, with the ability to add modern avionics, this airplane is hard to beat. PayloadIf owners have any consistent complaints about the 340 line, they relate to payload, or lack thereof. Most cabin-class Cessnas are well equipped and can accommodate around 1600 to 1700 pounds of fuel and payload; some carry even less than that. The performance figures above are for 340s with 310-HP engines.

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The more generic components such as filters, wheels, tires, and brakes are off the shelf and stocked by large aviation suppliers like Aircraft Spruce & Specialty or Wag Aero. Customers were impressed by an aircraft of that size with a pressurized cabin. Proving the most popular of the 340 series, 948 of the 1,287 Cessna 340s produced were the 340A model.

Mysteries Of Flight: The Curious Case Of Pan Am Flight 914

The Cessna 340 is a pressurized light twin aircraft produced by Cessna. For numerous reasons, it has evolved into the best-selling, piston-powered, cabin-class pressurized twin in the world that quickly surpassed other rival aircraft in its category. We typically dont carry more than five and then only with little baggage. With only two you can fill the tanks (183 gal) and go from Southern California to Florida with one fuel stop.

cessna 340 cruise speed

The cabin is a comfortable 46.5 inches wide, 4 inches broader than a Baron’s, enough for three rows of two seats each with an aisle down the center. The airplane also can be fitted with a divider separat­ing the front cockpit from the aft passenger compart­ment for corporate operation. The factory air conditioning is a mechanical nightmare, powered by a hydraulic pump on the right engine, driving a hydraulic motor coupled to the compressor. But it’s proven to be troublesome to keep working due to Freon leaks.

A fast, pressurized cabin-class twin thats still one of the best step-ups from a high performance single.

The typical 340 buyer is moving up from a high performance single such as a Cessna 210, Mooney, Bonanza or non-pressurized twin such as a 310, Seneca or Baron. Many a Beech loyalist, in love with an A36 or Baron, will purchase a 340 as an interim aircraft in order to gain experience for a future King Air. Most 340s have at least one fuel tank occupying a locker and nose baggage compartment space typically is compromised by avionics gear. But for increased performance, a much easier and cheaper modification swept through most of the fleet, and that was the addition of vortex generators.

cessna 340 cruise speed

Considering the payload limitations, the baggage space in the 340 seems a cruel joke. Among the cabin, nose and locker compartments, theres a cavernous 53 cubic feet of space in which a maximum of 930 pounds can be crammed. Most 340s have at least one fuel tank occupying a locker, and nose baggage compartment space typically is compromised by avionics gear. If owners have any consistent complaints about the 340 line, they relate to lack of payload. Load enough gas for a 4.5-hour flight with reserves and you can take along only two passengers and their bags. Fill the seats with 170-pound FAA clones and pack away their regulation 30 pounds of baggage each and you can carry enough fuel for less than two hours of flying.

Cessna 340 A, II pressurized/turbocharged - Performance Data

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On the other hand, a “bargain” airplane can be a financial nightmare. The buyer who thought he had the perfect airplane gets hit with a bill of 25 percent of the value of his airplane on the first annual. These airplanes simply must be maintained by a knowledgeable shop. When buying, a pre-buy by a shop that specializes in twin Cessnas is a must.

Insurance Options

We have carried six with a light fuel load, but dont plan on flying more than a couple hours or taking much baggage. Jerry Temple, an aircraft dealer specializing in the 340, says, “The fuel system is no big deal. Cessna offered an automatic pressurization control, which activates and deactivates while climbing or descending through 8000 feet, but more buyers opted for the variable-control system.

This was a result of trying to pressurize an existing fuselage that was essentially a box. The reason 340s are preeminent as a best buy is that they offer more than enough for less than too much. They’re not the fastest or the most economical bimotored machines, but Cessna did a competent job on the original design. The type has proven resilient against the hands of time and there are plenty of airplanes to choose from.

We had an extremely comprehensive prebuy inspection done by Bill Turley of Aircraft Engineering Inc. in Bar­tow, Florida. When the candidate aircraft came back rela­tively clean, the new owner and I jetted down, handed over the check, picked up the Cessna, and flew it home to Long Beach, California. Last I heard, he still owns it and he’s still my friend, so it must have been a good choice. Don’t expect the boots to work very well above 10,000 feet. The density altitude really takes the oomph out of the pressure side of the vacuum pumps.

Considering an entire VG kit weighs about as much as the air in your tires, it’s about as close to a free lunch as you can get. If you’re considering a 340, by all means consider vortex generators. You get the approach speed stabilized at 117 indicated with flaps and gear down, then hold it in that position until just over the runway, when you ease off the power. The RSTOL conversion with RAM VGs drops VMC speed down well below a stall, and opens up just about any airport where you would feel comfortable operating a stock Cessna 206.

Three-blade McCauley propellers, formerly an option, also became standard equipment in 1976; earlier 340s came with two-blade McCauleys. The 340 has a gross weight of 5,975 pounds, and an empty weight of 3,697 pounds. But any discussion of an airplane – any airplane – must balance all the heavily publicized features to some practical use. The customary advertising claims throw all the seats, gross weight, maximum fuel, and maximum performance into one arena. But hardly any plane can do all those things, and carry all that weight, at one and the same time.

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