All Hail the Pratt & Whitney PT6 Turboprop Engine!

All Hail the Pratt & Whitney PT6!

Below you will see one of the first photos of the famous Pratt & Whitney PT6 turboprop aircraft engine and its designers. This engine is THE rockstar of the turboprop engine world! 

Important Dates:

• 1958 - Design started
• 1960 Feb. - First ran
• 1961 May - First flew
• 1964 - Entered service
• 2011 - 50th Anniversary 

On its first flight it was mounted as a third engine on the nose of a Beech 18. That would have been an interesting sight! The test aircraft was switched to a Beech King Air in 1980. The first production model was the PT6A-6 and used on the Beech Queen Air.

The original designers of the PT6

According to the manufacturer over 51,000 units have been produced (as of 2015) and the engine has flown over 400 million hours! Considering that it only has an in-flight engine shut-down once every 651,126 hours, it is one of the most reliable aircraft engines ever. There have been over 69 different versions built. Not all of the versions have been for aircraft, some variants have been used for helicopters, boats, hovercraft, land vehicles and auxiliary power units.

TBO (time between overhauls) ranges between 3600 to 9000 hours and hot section inspections are done between 1800 and 2000 hours.

The PT6-114A in the Cessna Caravan only weighs 350lbs and yet puts out almost 700hp! The PT6 engine is found in most of the turbo-prop airplanes in the United States, including the Cessna Caravan, de Havilland Twin Otter, Air Tractor, Beech 1900, Beech King Air, Beech 99, PAC 750, Quest Kodiak, Pilatus PC-12, Piaggio Avanti, Shorts 360, AgustaWestland AW139 and many more. ALL great aircraft mainly because of their heart.... the PT6. Keep up the great work Pratt & Whitney!

Be sure and check out our friends at pt6nation.com


CaravanNation.com

When Blades Creep

This is a story that I posted on my other blog Caravan Pilots a couple days ago. Considering that this was a jump plane, I figured that it should be posted here as well.

What happened to the Caravan pictured below?  

Turbine Blade Creep - the movement of a turbine blade from its normal alignment, causing it to strike the casing.  Caused by stress from high temperatures and high centrifugal forces.

When Blades Creep!  It sounds like the title of some horror movie doesn't it?  Well, if you don't know what it is... it just might become the title of your very own horrific day.  Read on and study more.

On June 1st, 2008 Grand Caravan N102VE operated by Skydive Greensburg in Indiana experienced a total loss of engine power.  On its second load of the day, it was climbing through 7,000 feet MSL with 14 skydivers on board when there was a CT (compressor  turbine) failure caused by blade creep.  The pilot reported hearing a loud explosion followed by a metal grinding noise coming from the engine.  The aircraft began to vibrate and then smoke filled the cabin when the pilot began emergency shutdown procedures.

He leveled off at 5,000 feet so that the skydivers could exit, which they all did.  He attempted a forced landing at the airport, however he was too high and fast (a common problem during such situations) and landed in an adjacent cornfield upside down, after the left wing and propeller struck the ground first.  Luckily the pilot and all skydivers survived.

The engine manufacturer, Pratt & Whitney Canada had issued Service Information Letters (SILs) recommending borescope inspections of the CT blades to look for blade creep and fatigue cracks.  However, the owner of this aircraft said that he was unaware of the SILs and did not perform the inspections.

We as pilots can all learn from this accident.  Do not ever assume that the owner of the airplane that you're flying is in compliance with all of the required Airworthiness Directives AND recommended Service Information Letters.  I know a lot of you had never even heard of a SIL.  Search to see if there are any on record for the airplane that you fly. Stay sharp.... fly safe!

Quest Kodiak about to start its life as a Jump Plane

On a ferry flight to Dekalb Illinois, I parked the airplane that I had just delivered next to this beautiful red Quest Kodiak.  It was about to be converted into a Jump Plane. 

There's not all that many of these aircraft in the air compared to its competition, however that fact is changing quickly with every year that goes by.  These aircraft are very comparable to the industry's beloved Cessna Caravan, one of the most popular and reliable Jump Planes in the world.


SkyDiverDriver.com

All Hail the Pratt & Whitney PT6 Turboprop Engine!

All Hail the Pratt & Whitney PT6!

Below you will see one of the first photos of the infamous Pratt & Whitney PT6 turboprop aircraft engine and its designers. This engine is THE rockstar of the turboprop engine world! 

Important Dates:

• 1958 - Design started
• 1960 Feb. - First ran
• 1961 May - First flew
• 1964 - Entered service
• 2011 - 50th Anniversary 

On its first flight it was mounted as a third engine on the nose of a Beech 18. That would have been an interesting sight! The test aircraft was switched to a Beech King Air in 1980. The first production model was the PT6A-6 and used on the Beech Queen Air.

The original designers of the PT6

According to the manufacturer over 51,000 units have been produced (as of 2015) and the engine has flown over 400 million hours! Considering that it only has an in-flight engine shut-down once every 651,126 hours, it is one of the most reliable aircraft engines ever. There have been over 69 different versions built. Not all of the versions have been for aircraft, some variants have been used for helicopters, boats, hovercraft, land vehicles and auxiliary power units.

TBO (time between overhauls) ranges between 3600 to 9000 hours and hot section inspections are done between 1800 and 2000 hours.

The PT6-114A in the Cessna Caravan only weighs 350lbs and yet puts out almost 700hp! This engine is found in most of the turbo-prop airplanes in the United States, including the Cessna Caravan, de Havilland Twin Otter, Air Tractor, Beech 1900, Beech King Air, Beech 99, PAC 750, Quest Kodiak, Pilatus PC-12, Piaggio Avanti, Shorts 360, AgustaWestland AW139 and many more. ALL great aircraft mainly because of their heart.... the PT6. Keep up the great work Pratt & Whitney!

Be sure and check out our friends at pt6nation.com


CaravanNation.com

The New Grand Caravan EX!

The new Grand Caravan EX has received FAA type certification. Its new Pratt & Whitney PT6A-140 has improved its rate of climb performance by 38%! That's almost twice as much as its projected 20% increase!

My corner office with a view!

My corner office with a view.  The new one after the last one... but not the last one :)  This almost 700 horse power C208B Grand Caravan will take up to 17 skydivers up to our normal drop altitude of 13,000 feet in about 12 minutes!  The Caravan is the most common turbine powered aircraft used to haul skydivers in the U.S. and it is the second most common jump plane in the U.S. overall, after the C182 Skylane.  Read more about ALL of the jump planes that are flown around the world in on our "Skydive Aircraft" page!