cabin pressure and health

Bertie the Bunyip wrote
The next generation are eschewing bleed air driven pressurisation
and going to seperate supercharger systems. A lot of older turboprops
used this system as well as a small number of jets. The 787 will have
this system.

The B-707 had both Bleed Air and Turbochargers. We used the Turbochargers
most of the time. An engine bleed line spun a turbine which then turned
a fresh outside air compressor.

Bob Moore
17 years in B-707s

Robert Moore wrote in
5.205:

Bertie the Bunyip wrote
The next generation are eschewing bleed air driven pressurisation
and going to seperate supercharger systems. A lot of older turboprops
used this system as well as a small number of jets. The 787 will have
this system.

The B-707 had both Bleed Air and Turbochargers. We used the Turbochargers
most of the time. An engine bleed line spun a turbine which then turned
a fresh outside air compressor.

Yeah, that was the jet exception I had noted. You were lucky you didn't
have to breath the compresser section air in that thing!
The JT8 was OK AFAIK There would have been some fumes, but the RB-211 is a
complete piece of junk. The Brits never could build an oil tight engine....




Bertie

Bertie the Bunyip wrote:
Robert Moore wrote in
5.205:


Bertie the Bunyip wrote

The next generation are eschewing bleed air driven pressurisation
and going to seperate supercharger systems. A lot of older turboprops
used this system as well as a small number of jets. The 787 will have
this system.

The B-707 had both Bleed Air and Turbochargers. We used the Turbochargers
most of the time. An engine bleed line spun a turbine which then turned
a fresh outside air compressor.


Yeah, that was the jet exception I had noted. You were lucky you didn't
have to breath the compresser section air in that thing!
The JT8 was OK AFAIK There would have been some fumes, but the RB-211 is a
complete piece of junk. The Brits never could build an oil tight engine....

Thats why you never change the oil in a british engine, you just change
the filter every 6000 miles, with the leak and replace of the oil, oil
changes are just a waste of time.




Bertie

James wrote in
:



Bertie the Bunyip wrote:
Robert Moore wrote in
5.205:


Bertie the Bunyip wrote

The next generation are eschewing bleed air driven pressurisation
and going to seperate supercharger systems. A lot of older
turboprops used this system as well as a small number of jets. The
787 will have this system.

The B-707 had both Bleed Air and Turbochargers. We used the
Turbochargers most of the time. An engine bleed line spun a turbine
which then turned a fresh outside air compressor.


Yeah, that was the jet exception I had noted. You were lucky you
didn't have to breath the compresser section air in that thing!
The JT8 was OK AFAIK There would have been some fumes, but the
RB-211 is a complete piece of junk. The Brits never could build an
oil tight engine....

Thats why you never change the oil in a british engine, you just
change the filter every 6000 miles, with the leak and replace of the
oil, oil changes are just a waste of time.



True, and they actually don't change the oils in RB 211s either! That is
part of the problem. As jet oil ages it gets thinner and leaks more
easily, and it also gets smellier.




Bertie

On Aug 17, 10:48*am, Bertie the Bunyip wrote:
James wrote :





Bertie the Bunyip wrote:
Robert Moore wrote in
.15.205:

Bertie the Bunyip *wrote

The next generation are eschewing bleed air driven pressurisation
and going to seperate supercharger systems. A lot of older
turboprops used this system as well as a small number of jets. The
787 will have this system. *

The B-707 had both Bleed Air and Turbochargers. We used the
Turbochargers most of the time. An engine bleed line spun a turbine
which then turned a fresh outside air compressor.

Yeah, that was the jet exception I had noted. You were lucky you
didn't have to breath the compresser section air in that thing!
The JT8 was OK AFAIK There would have been some fumes, but the
RB-211 is a complete piece of junk. The Brits never could build an
oil tight engine....

Thats why you never change the oil in a british engine, *you just
change the filter every 6000 miles, with the leak and replace of the
oil, oil changes are just a waste of time.

True, and they actually don't change the oils in RB 211s either! That is
part of the problem. As jet oil ages it gets thinner and leaks more
easily, and it also gets smellier.

Bertie

Is there a link other than a common country between the engine makers
and Austin Healey cars? The AH I had positioned the distributor
exactly where water would splash when I drove through a puddle. There
was no need to put a top on that car, if it was raining it wouldn't go
anywhere anyhow. But it would leak! It was the car I owned that was
both the most trouble and the most fun to drive.

wrote in message
...

Is there a link other than a common country between the engine makers
and Austin Healey cars? The AH I had positioned the distributor
exactly where water would splash when I drove through a puddle. There
was no need to put a top on that car, if it was raining it wouldn't go
anywhere anyhow. But it would leak! It was the car I owned that was
both the most trouble and the most fun to drive.

And don't forget the joys of Lucas electrics! (The Prince of darkness)

Does Lucas make aircraft electrics?

Vaughn

Vaughn Simon wrote:
wrote in message
...

Is there a link other than a common country between the engine makers
and Austin Healey cars? The AH I had positioned the distributor
exactly where water would splash when I drove through a puddle. There
was no need to put a top on that car, if it was raining it wouldn't go
anywhere anyhow. But it would leak! It was the car I owned that was
both the most trouble and the most fun to drive.

And don't forget the joys of Lucas electrics! (The Prince of darkness)

Does Lucas make aircraft electrics?

Vaughn



Oh yes, they do.

"Vaughn Simon" wrote in news:9lXpk.5591
:

And don't forget the joys of Lucas electrics! (The Prince of darkness)

Does Lucas make aircraft electrics?

I believe they also make refrigerators, which is why the Brits drink warm
beer.

wrote in
:

On Aug 17, 10:48*am, Bertie the Bunyip wrote:
James wrote
innews:8KCdnZwGw601sTXVnZ2dnUVZ_jGd
:





Bertie the Bunyip wrote:
Robert Moore wrote in
.15.205:

Bertie the Bunyip *wrote

The next generation are eschewing bleed air driven pressurisation
and going to seperate supercharger systems. A lot of older
turboprops used this system as well as a small number of jets.
The 787 will have this system. *

The B-707 had both Bleed Air and Turbochargers. We used the
Turbochargers most of the time. An engine bleed line spun a
turbine which then turned a fresh outside air compressor.

Yeah, that was the jet exception I had noted. You were lucky you
didn't have to breath the compresser section air in that thing!
The JT8 was OK AFAIK There would have been some fumes, but the
RB-211 is a complete piece of junk. The Brits never could build an
oil tight engine....

Thats why you never change the oil in a british engine, *you just
change the filter every 6000 miles, with the leak and replace of
the oil, oil changes are just a waste of time.

True, and they actually don't change the oils in RB 211s either! That
is part of the problem. As jet oil ages it gets thinner and leaks
more easily, and it also gets smellier.

Bertie

Is there a link other than a common country between the engine makers
and Austin Healey cars? The AH I had positioned the distributor
exactly where water would splash when I drove through a puddle. There
was no need to put a top on that car, if it was raining it wouldn't go
anywhere anyhow. But it would leak! It was the car I owned that was
both the most trouble and the most fun to drive.



They're worth a lot of money now!
I got a rubber boot to go over the distributor on most of the brit cars
I owned. It did help a lot. Just had to replace the cap on my VW for the
same reason. Must be twenty years since moisture stopped a car of mine..


Bertie

"Bertie the Bunyip" wrote in message
...

They're worth a lot of money now!
I got a rubber boot to go over the distributor on most of the brit cars
I owned. It did help a lot. Just had to replace the cap on my VW for the
same reason. Must be twenty years since moisture stopped a car of mine..


Bertie

You have a VW also?

Do you have to push it home as often as you do your motorcycle, or do you
let someone else work on it?