Why are multiple engines different?

cjcampbell wrote:
Mxsmanic wrote:
cjcampbell writes:

A turborprop
increases safety, but now you are talking real money, both in
acquisition cost and in fuel and maintenance.
Why are turboprops so much more expensive? I thought gas turbines
were supposed to be simpler and more efficient.

They are simple, but much less efficient than piston engines.

Plus, parts are a lot more expensive and when things go very bad, the
maintenance costs are a lot more than a piston. That alone scares a lot
of operators off.

Ok, actually, I don't know much about turboprops, but that's the case
for turbofans.

Emily wrote:
cjcampbell wrote:
Mxsmanic wrote:
cjcampbell writes:

A turborprop
increases safety, but now you are talking real money, both in
acquisition cost and in fuel and maintenance.
Why are turboprops so much more expensive? I thought gas turbines
were supposed to be simpler and more efficient.

They are simple, but much less efficient than piston engines.

Plus, parts are a lot more expensive and when things go very bad, the
maintenance costs are a lot more than a piston. That alone scares a lot
of operators off.

Ok, actually, I don't know much about turboprops, but that's the case
for turbofans.

From a maintenance standpoint, just think of a turboprop as being a
turbofan with a lot less blades.

cjcampbell wrote:
Emily wrote:
cjcampbell wrote:
Mxsmanic wrote:
cjcampbell writes:

A turborprop
increases safety, but now you are talking real money, both in
acquisition cost and in fuel and maintenance.
Why are turboprops so much more expensive? I thought gas turbines
were supposed to be simpler and more efficient.
They are simple, but much less efficient than piston engines.
Plus, parts are a lot more expensive and when things go very bad, the
maintenance costs are a lot more than a piston. That alone scares a lot
of operators off.

Ok, actually, I don't know much about turboprops, but that's the case
for turbofans.

From a maintenance standpoint, just think of a turboprop as being a
turbofan with a lot less blades.

LOL...yeah, the whole gas generator and power tubine thing seems a
little to complex. I'm sure at some point I understand it, but you
forget what you don't use.

All internal combustion engines work the same. A turbine
just does it as a series of continuous events in different
sections of the engine and a piston engine does one at a
time so power is produced only 1/4 of the time in a 4 cycle
and 1/2 the time in a two cycle.
I'm going to print some T-shirts...

"SUCK
SQUEEZE
BANK and
BLOW

Get your mind out of the gutter, it is an engine"


The P&W PT6 is perhaps the most popular turboprop. It uses
air coupling between the power and reduction gear section.
Makes it better in many ways, but there is a loss of
efficiency.


"Emily" wrote in message
...
| cjcampbell wrote:
| Emily wrote:
| cjcampbell wrote:
| Mxsmanic wrote:
| cjcampbell writes:
|
| A turborprop
| increases safety, but now you are talking real
money, both in
| acquisition cost and in fuel and maintenance.
| Why are turboprops so much more expensive? I thought
gas turbines
| were supposed to be simpler and more efficient.
| They are simple, but much less efficient than piston
engines.
| Plus, parts are a lot more expensive and when things go
very bad, the
| maintenance costs are a lot more than a piston. That
alone scares a lot
| of operators off.
|
| Ok, actually, I don't know much about turboprops, but
that's the case
| for turbofans.
|
| From a maintenance standpoint, just think of a turboprop
as being a
| turbofan with a lot less blades.
|
| LOL...yeah, the whole gas generator and power tubine thing
seems a
| little to complex. I'm sure at some point I understand
it, but you
| forget what you don't use.

spelling correction
"Jim Macklin" wrote
in message news:MMYWg.2126$XX2.1083@dukeread04...
| All internal combustion engines work the same. A turbine
| just does it as a series of continuous events in different
| sections of the engine and a piston engine does one at a
| time so power is produced only 1/4 of the time in a 4
cycle
| and 1/2 the time in a two cycle.
| I'm going to print some T-shirts...
|
| "SUCK
| SQUEEZE
| BANG and
| BLOW
|
| Get your mind out of the gutter, it is an engine"
|
|
| The P&W PT6 is perhaps the most popular turboprop. It
uses
| air coupling between the power and reduction gear section.
| Makes it better in many ways, but there is a loss of
| efficiency.
|
|
| "Emily" wrote in message
| ...
|| cjcampbell wrote:
|| Emily wrote:
|| cjcampbell wrote:
|| Mxsmanic wrote:
|| cjcampbell writes:
||
|| A turborprop
|| increases safety, but now you are talking real
| money, both in
|| acquisition cost and in fuel and maintenance.
|| Why are turboprops so much more expensive? I
thought
| gas turbines
|| were supposed to be simpler and more efficient.
|| They are simple, but much less efficient than piston
| engines.
|| Plus, parts are a lot more expensive and when things
go
| very bad, the
|| maintenance costs are a lot more than a piston. That
| alone scares a lot
|| of operators off.
||
|| Ok, actually, I don't know much about turboprops, but
| that's the case
|| for turbofans.
||
|| From a maintenance standpoint, just think of a
turboprop
| as being a
|| turbofan with a lot less blades.
||
|| LOL...yeah, the whole gas generator and power tubine
thing
| seems a
|| little to complex. I'm sure at some point I understand
| it, but you
|| forget what you don't use.
|
|

Jim Macklin wrote:
All internal combustion engines work the same. A turbine
just does it as a series of continuous events in different
sections of the engine and a piston engine does one at a
time so power is produced only 1/4 of the time in a 4 cycle
and 1/2 the time in a two cycle.
I'm going to print some T-shirts...

"SUCK
SQUEEZE
BANK and
BLOW

Is there a reason you continually post information that I already know
in my direction?

"Emily" wrote in message
. ..
Jim Macklin wrote:
All internal combustion engines work the same. A turbine just does it as
a series of continuous events in different sections of the engine and a
piston engine does one at a time so power is produced only 1/4 of the
time in a 4 cycle and 1/2 the time in a two cycle.
I'm going to print some T-shirts...

"SUCK
SQUEEZE
BANK and
BLOW

Is there a reason you continually post information that I already know in
my direction?

Emily, PLEASE............this is a family oriented newsgroup!

Karl

karl gruber wrote:
"Emily" wrote in message
. ..
Jim Macklin wrote:
All internal combustion engines work the same. A turbine just does it as
a series of continuous events in different sections of the engine and a
piston engine does one at a time so power is produced only 1/4 of the
time in a 4 cycle and 1/2 the time in a two cycle.
I'm going to print some T-shirts...

"SUCK
SQUEEZE
BANK and
BLOW
Is there a reason you continually post information that I already know in
my direction?

Emily, PLEASE............this is a family oriented newsgroup!

Karl


Actually, that was Jim that wrote that. I'm not that crass.

Oh, who am I kidding? But I can't take credit for it this time.

I said it, Emily just reposted and forgot to include the
rest of the tag line... Get your mind out of the gutter, it
is an engine. Also bank should be bang for ignition-power.



"karl gruber" wrote in message
...
|
| "Emily" wrote in message
| . ..
| Jim Macklin wrote:
| All internal combustion engines work the same. A
turbine just does it as
| a series of continuous events in different sections of
the engine and a
| piston engine does one at a time so power is produced
only 1/4 of the
| time in a 4 cycle and 1/2 the time in a two cycle.
| I'm going to print some T-shirts...
|
| "SUCK
| SQUEEZE
| BANK and
| BLOW
|
| Is there a reason you continually post information that
I already know in
| my direction?
|
| Emily, PLEASE............this is a family oriented
newsgroup!
|
| Karl
|
|

"karl gruber" wrote in message
...

"Emily" wrote in message
. ..
Jim Macklin wrote:
All internal combustion engines work the same. A turbine just does it
as a series of continuous events in different sections of the engine and
a piston engine does one at a time so power is produced only 1/4 of the
time in a 4 cycle and 1/2 the time in a two cycle.
I'm going to print some T-shirts...

"SUCK
SQUEEZE
BANK and
BLOW

Is there a reason you continually post information that I already know in
my direction?

Emily, PLEASE............this is a family oriented newsgroup!

Well, a dysfunctional family...