Add to EJ Playlist 1) - Starter drive system for the RR Olympus twin-shaft turbojet
2) - Rapid throttle changes for airliners vs fighters
3) - Why do we do what we do ?
4) - Why do J79s smoke so much ?
5) - Why are some J79s smokey, and some aren't ?
6) - Power density in combustors - old vs new engines
7) - Why don't the combustion gases blow out the front of the engine ?
Add to EJ Playlist The brand new contender, with design improvements based on racing experience in Black Beauty, is ready for the world.
For the first time ever, Gord starts the engine, and then just can't resist starting it again...
Add to EJ Playlist 1) do I have a favorite engine...?
2) how does the fan work in the F-35 Lightning ?
3) what kind of bearings are in those engines ?
4) what's a cutoff valve ? what's a shutoff valve ? what fire detection do engines have?
5) how does the fire get lit in non-ignitor cans... ?
Add to EJ Playlist Today we compare two different combustor liners for our jet boat race engine. What was in the engine that burned up its hot section was quite worn and ready for replacement.
We have a liner from a CT58 which has very few hours on it. The CT58 was designed to carry passengers in civil aviation, so that may be why it just seems to be more heavily built.
We are going to race it !
Add to EJ Playlist The J47 is a classic, early American jet engine. It was used in the F-86 Sabre ( one ), and in the B-47 ( six! ), two of the most beautiful aircraft that have ever been created.
We've got one in the shop so we can to check out its condition, and get it ready for use in an F-86.
Pilots love this plane, and so do non-pilots; have a google, and see what you think !
Jet City Turbine Services thanks Compression Technology of Fort St John, for allowing us to be guests in their shop.
Add to EJ Playlist Oh, just another afterburning turbojet to test on a Friday afternoon...
It was a beautiful warm day today, and almost everybody was there.
Electron Bill, Big Al, Lane, who built the engine, Walter, guest cameraman Ryan, the boys from Maddex( Brian, Mike, Amir ), Byron, Robin the president and chief operator, and Daena, who got to drive her first jet engine today.
Al is holding the jug because the oil talnk was overserviced, and the engine has a way of fixing that... puking the excess oil overboard.
And the wonderful belch at the beginning of the video is electrically powered, if you know what I mean !
Add to EJ Playlist The first couple of runs in the development process of the Maddex Turbines air-brake dynamometer, with which we will test the Allison / RR 501 industrial series of turboshaft engines. They are a very slightly modified T-56 turboprop, and produce between 3,000 and 5,000 Hp.
I am not working on this project, but I was able to nab some footage, and hack together this update for you.
The "smoke" you see during the first run is actually oil mist coming from the lube oil reservoir vent on the totally independent system of the load compressor; the one in front of the running engine.
Notice there is no mist coming off the running engine in the second run...
Add to EJ Playlist This time:
1) How safe does AgentJayZ feel ?
2)Why don't I jump with glee during a test?
2B) Do I worry about explosions ?
3)Why didn't the Avon smoke on startup?
4)Do RR engines sound better than GE?
5)Why are the fuel pigtails so long?
Somehow I seem to have grown an extra eyebrow !
Add to EJ Playlist First test run of a newly upgraded Avon industrial engine. Power output and hot section durability have been upgraded with the application of ceramic thermal barrier coatings to the most heat-stressed parts of this very popular workhorse.
It was very cold today; the wind made it feel like about -30C.
Guest appearances by Byron, Electron Bill, Donovan, Mike, Massih, Brian...
Add to EJ Playlist The GE LM500 is the industrial version of the very popular CF34 / TF34 turbofan aircraft engine.
Help me out with removing the fuel nozzles to look at the ferrules in the combustor they fit into with a handy boroscope.
Add to EJ Playlist We get to have a look at a fuel nozzle type that is less commonly used - the vaporizing, as opposed to atomizing type.
This engine burns liquid jet fuel, and is installed in the early models of the A4 Skyhawk.
Add to EJ Playlist This time, we talk about:
1) - The double-compress or 501 / T-56 in our test cell
2) -X-ray inspection
3) -The Orenda nose cone
4) - Compressor design
5) - The fluid used by actuators
6) - Air-fuel ratio...
7) - Why you should idle for two minutes before shutting down your turbine engine.
Add to EJ Playlist Discussed:
1) - Why the power turbine is needed
2) - How the power turbine does what it does
3) - Are gas turbines good for power generation ?
4) - Arrangement of shafts in a two shaft engine
5) - How can oil get into bleed air used for cabin pressurization ?
Add to EJ Playlist This time, let's talk about:
1) - windmilling turbofan concerns
2) - tolerance stack buildup along overall engine length
3) - types of bearings used on the main shaft
4) - why is EGT important ?
5) - impulse and reaction turbine types
Add to EJ Playlist A discussion about how the term " bleed air" is used to describe not just one thing, but a variety of sources and destination for air that leaves the compressor upstream of the nominal compressor outlet.
Add to EJ Playlist In this episode :
1) Reasons for loose mounts of turbine and compressor blades
2) Are there industrial uses for turbofan engines ?
3) Older designs had allowable limits for cracks in the hot section. Do newer ones ?
4) Vibration measurement and monitoring in aircraft and our test cell.
5) Do airliners always fly at full power? What about efficiency at part throttle ?
Add to EJ Playlist Hey, we've hit 20 !
This time, let's talk about:
1) Bearing life expectancy
2) Coke and soot deposits in the engine
3) Fuel nozzle spray pattern
5) How does our start cart work.
Add to EJ Playlist Let's talk about
1) - Water getting into the engine
2) - Running out of fuel
3) - What's that steel box next to the engine in the test cell ?
4) - What's that yellow thing on wheels ?
5) - Why do newer, more powerful engines have smaller combustors?
Add to EJ Playlist This time:
1) - What shape is the duct between the GG and the PT in an industrial installation.
2) - Why the power is concentrated right near the top of the operational speed range.
3) - What the heck is that big white thing on the front of the engine...?
4) - Do I try to recognize all those sounds heard in an airliner while travelling...