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G4 guys ...

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AHTTD

Member
Joined
Dec 28, 2005
Posts
10
Was walking through the local FBO* Sunday afternoon at sunset enjoying time with the kids when I heard a HORRIBLE noise coming from just across the ramp near that most gorgeous (!) of airplanes – the mighty G4. There was only a slight breeze and although I had heard similar noises from the likes of a C-5, I thought surely the noise must be from something out of sight, beyond the sleek beauty. But a work crew on a Sunday afternoon?. I continued my investigation. I walked up and to my horror, confirmed my initial guess that the horrible clanging noise was from the slowly spinning turbine blades.

The motors sit too far back for a ‘stick’ to be placed in between the spinning rotors (like the C-5) and that’s too … unkempt for a corporate jet. Can you lock them by some other means? On the DC-9 (my bird) we place, and lock, the thrust reverser buckets out to keep the tailwind from spinning the blades. Of course there's also inlet/outlet covers! And this bird was sitting at her homebase!! Why didn't someone take the time!!

"Oh, the humanity!!"

To think that the impression of my MOST favorite airplane in the world is now tainted … my kids saw me weep.

/s/ AHTTD

*Flightworks at McCollum - KRYY
 
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There are inlet covers you can put on to stop the blades from turning. You have to use a ladder to get on the wing to put them on. It has a rubber stopper at the end that goes on the spinner, and then the cover is opened like an umbrella and snapped to either side of the cowl. Most crews I've seen only do this for winter ops or long duration ramp visits.
 
G4 nacelles are mounted way too high to put covers on them unless you have a cherry picker handy. Lighten up, Dude! It's normal.
 
The G4 uses a RR TAY. The same motor on the F100. How many times did you ever see KLM or AA put covers on, pop the TR's or lock the blades in place? I flew at AA for a few years and the answer is never.

I had a chief pilot how use to love to put them on, claimed he was saving the company money. Then I asked him if he actually thought that 15kts of wind did a lot of damage to a motor designed to spin at X RPM? He fought me for years, until one dewy morning he decided to take the covers off. Unfortunatly, he fell off and now he claims that his golf swing is ruined.

The design on the "fir tree" fan blade is to remain loose. That is the noise you are hearing.

The G5 uses the same motors as the 717. Have you ever seen Airtran do anything to stop the blades from spinning?
 
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Engine covers: JUST SAY NO



not worth the injuries!





:D
 
Rotating fan blades

AerroMatt said:
G4 nacelles are mounted way too high to put covers on them unless you have a cherry picker handy. Lighten up, Dude! It's normal.

A little 411 for those that don't really know that much about turbine engines...

While the engine is not running the oil pump is not sending oil to the bearings, therefore a rotating fan that is on a bearing that is not getting lubricated is not a good situation.

But hey, when you start getting those 'core beats' or your engine won't make power for the day....give me a call. I will see if I can schedule you in.
 
Gatorman said:
A little 411 for those that don't really know that much about turbine engines...

While the engine is not running the oil pump is not sending oil to the bearings, therefore a rotating fan that is on a bearing that is not getting lubricated is not a good situation.

But hey, when you start getting those 'core beats' or your engine won't make power for the day....give me a call. I will see if I can schedule you in.


thats why we put them in hangars or send a mechanic up on the wing to break his a$$.

Know your place in the foodchain, biatch.





:) ;)
 
Gatorman said:
A little 411 for those that don't really know that much about turbine engines...

While the engine is not running the oil pump is not sending oil to the bearings, therefore a rotating fan that is on a bearing that is not getting lubricated is not a good situation.

But hey, when you start getting those 'core beats' or your engine won't make power for the day....give me a call. I will see if I can schedule you in.
Well... Actually, I know on the newer Garrett's, eh.. Allied-Signal's... eh... Honeywell's... eh, whatever the hell they are called this week... anyhow, on the TFE-731-40's & -60's there is a little reservoir at the bottom of the bearing race that pools oil, basically the bottom of the bearing is always in it... When the engine windmills, the bearing is being lubricated by this oil reservoir... This does not apply to the older Garrett's (-2, -3, -4, -5's)...
 
gulfstream200

Gulfstream 200 said:
thats why we put them in hangars or send a mechanic up on the wing to break his a$$.

Know your place in the foodchain, biatch.
:) ;)

Gulfstream, you have been bagging on me for a long time and you know what? Just keep 'em comming.

I still think Goofstreams were made for people nine feet tall to open the hellhole door and throw baggage in and for 5 feet tall poeple to fly in. So, don't make me break out the list on ya.

BTW, I have taken my tool box home for the last time. I now reside in the office at the top of the stairs and if you want any mechanic to look your plane, you will have to climb up and ask me first.


"How do you like me now, Biach!"


...and put the covers your own &*(^&* self
 
My my G200, you sure know how to spread the hate and discontent. Hehe.

Who's next on the argument list?
 
AerroMatt said:
My my G200, you sure know how to spread the hate and discontent. Hehe.

Who's next on the argument list?

the real world can be a toughl place Matt.


;)


heres a few:


Rule 1: Life is not fair - get used to it!

Rule 2: The world won't care about your
self-esteem. The world will expect
you to accomplish something BEFORE you feel good
about yourself.

Rule 3: You will NOT make $160,000 a year right out
of high school. You
won't be a vice-president with a vacation home until you
earn both.

Rule 4: If you think your teacher is tough, wait
till you get a boss.

Rule 5: Flipping burgers is not beneath your
dignity. Your Grandparents
had a different word for burger flipping: they
called it opportunity.

Rule 6: If you mess up, it's not your parents'
fault, so don't whine about
your mistakes, learn from them.

Rule 7: Before you were born, your parents weren't
as boring as they are
now. They got that way from paying your bills,
cleaning your clothes and
listening to
you talk about how cool you thought you were. So
before you save the rain
forest from the
parasites of your parent's generation, try delousing
the closet in your own
room.

Rule 8: Your school may have done away with winners
and losers, but life
HAS NOT. In some schools, they have abolished
failing grades and they'll
give you
as MANY TIMES as you want to get the right answer.
This doesn't bear the
slightest
resemblance to ANYTHING in real life. (except FlightSafety, doh!)

Rule 9: Life is not divided into semesters. You
don't get summers off and
very few employers are interested in helping you
FIND YOURSELF. Do that on
your own
time.

Rule 10: Television is NOT real life. In real life
people actually have to
leave the coffee shop and go to jobs.

Rule 11: Be nice to jackoffs like G200. Chances are you'll end
up working for one.


peace bro!






:smash:
 
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G200....A Jackoff????.......Say it aint so??? What's a brutha to do?? :eek:
;)


heres a few:


Rule 1: Life is not fair - get used to it!

Rule 2: The world won't care about your
self-esteem. The world will expect
you to accomplish something BEFORE you feel good
about yourself.

Rule 3: You will NOT make $160,000 a year right out
of high school. You
won't be a vice-president with a vacation home until you
earn both.

Rule 4: If you think your teacher is tough, wait
till you get a boss.

Rule 5: Flipping burgers is not beneath your
dignity. Your Grandparents
had a different word for burger flipping: they
called it opportunity.

Rule 6: If you mess up, it's not your parents'
fault, so don't whine about
your mistakes, learn from them.

Rule 7: Before you were born, your parents weren't
as boring as they are
now. They got that way from paying your bills,
cleaning your clothes and
listening to
you talk about how cool you thought you were. So
before you save the rain
forest from the
parasites of your parent's generation, try delousing
the closet in your own
room.

Rule 8: Your school may have done away with winners
and losers, but life
HAS NOT. In some schools, they have abolished
failing grades and they'll
give you
as MANY TIMES as you want to get the right answer.
This doesn't bear the
slightest
resemblance to ANYTHING in real life. (except FlightSafety, doh!)

Rule 9: Life is not divided into semesters. You
don't get summers off and
very few employers are interested in helping you
FIND YOURSELF. Do that on
your own
time.

Rule 10: Television is NOT real life. In real life
people actually have to
leave the coffee shop and go to jobs.

Rule 11: Be nice to jackoffs like G200. Chances are you'll end
up working for one.


peace bro!






:smash:[/quote]
 
Gumby said:
G200....A Jackoff????.......Say it aint so??? What's a brutha to do?? :eek:
;)


can you BELIEVE people have called me that??!!!

kinda shocked me too, Im a real people person, ya know?






:eek: :smash:
 
Not too sure about the Rolls engines. But Pratt says that it would take one year in the Arizona desert, in blowing sand, to take one hour off the JT-15.
 
Al Gore invented the internet :laugh:
 
Bad valve lifters. Just tell the crew to throw a pint of Marvel Mystery Oil in the oil replenishment resevoir; she'll pure like a kitten.
 
G4G5 said:
The G4 uses a RR TAY. The same motor on the F100. How many times did you ever see KLM or AA put covers on, pop the TR's or lock the blades in place? I flew at AA for a few years and the answer is never.

Saw 5 KLM cityhopper F100 sitting at AMS in the early hrs, all had engine covers on today.
 

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