E90Post
 


Lux Angel Eyes
 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Off-Topic Discussions > Looks Like BMW Have Played Safe



Reply
 
Thread Tools Search this Thread
      11-17-2011, 11:52 AM   #45
rich1068
has left the building
 
Drives: F30 330d M Sport
Join Date: Oct 2010
Location: UK

Posts: 3,363
iTrader: (0)

Quote:
Originally Posted by xenon View Post
The worst has to be the stupid Mercedes mechanical handbrake of the 80s / 90s that you operated with your foot...
They still do don't they? The 3 year old C Class we have here has one. And my dad's old Beirut taxi had a handle sticking out of the right hand side of the dash iirc.

Peugeot/Citroen vans are a pita too. Normal handbrake but it's on the right hand side of the seat.
rich1068 is offline   United Kingdom
0
Reply With Quote
      11-17-2011, 11:55 AM   #46
xenon
Brigadier General
 
xenon's Avatar
 
Drives: 2013 F10 520d M-Sport
Join Date: Jun 2008
Location: Coventry

Posts: 4,701
iTrader: (0)

Quote:
Originally Posted by rich1068 View Post
Peugeot/Citroen vans are a pita too. Normal handbrake but it's on the right hand side of the seat.
That's where it is on the Porsche. Much better there IMO.
__________________
Ian
Current: 2013 F10 520d M-Sport, Professional Media, Visibility Pack, Reversing Camera, DAB
Previous: 2011 F10 520d M-Sport, 2008 320i M-Sport Coupe, 2002 325i, 2001 318i valvetronic, 1998 318i, 1996 525i, 1990 Porsche 944S2
xenon is offline   England
0
Reply With Quote
      11-17-2011, 12:46 PM   #47
Jon D
Colonel
 
Jon D's Avatar
 
Drives: F12 640i
Join Date: Sep 2009
Location: Scotland

Posts: 2,575
iTrader: (0)

Quote:
Originally Posted by xenon View Post
I've never tried this in mine but the handbook says something along the lines of "operating the handbrake switch in motion will cause the car to brake extremely hard (emergency braking) but ABS is still active" - to imply it won't lock the wheels, but I'm not in the mood to try it....
Quote:
Originally Posted by Jon D View Post
Definitely not to be recommended, at least not in your own car
I'm sure I've tried applying the handbrake in my F10 whilst stationary, but without my foot on the brake and I seem to recall that it didn't work. I'll be going out later and will repeat the exercise and let you know.
I'll soon be taking a 640d coupé for a demo and will try it on the move, albeit at a slow speed and in an 'anticipatory' frame of mind...
My mistake entirely - no difference between manual and auto. The handbrake can be applied without operating the footbrake and whilst the car is moving.
Never having tried it before, I must have subconsciously been thinking about the interlock between the footbrake and park, drive or reverse.
Jon D is offline   Scotland
0
Reply With Quote
      11-17-2011, 12:59 PM   #48
Jon D
Colonel
 
Jon D's Avatar
 
Drives: F12 640i
Join Date: Sep 2009
Location: Scotland

Posts: 2,575
iTrader: (0)

Quote:
Originally Posted by kaishang View Post
...I accidently hit the two big red switches and turned the entire electrical system of the whole aircraft off...
TWO big red switches? I can't think of any light aircraft which have more than ONE electrical master switch - what was the other one for?
As Ian commented, it's also guarded by a spring loaded plastic cover, which has to be consciously lifted with one digit, before it can be operated by another - must have been quite an 'accidental' operation.
Jon D is offline   Scotland
0
Reply With Quote
      11-17-2011, 01:03 PM   #49
Jon D
Colonel
 
Jon D's Avatar
 
Drives: F12 640i
Join Date: Sep 2009
Location: Scotland

Posts: 2,575
iTrader: (0)

Quote:
Originally Posted by kaishang View Post
And I boobed by saying gravity feed for the fuel. Piper, being low wing, has an engine driven fuel pump. Cessna has a high wing and gravity feed, so you can't fly inverted
I think you'll find that all aircraft have an engine driven pump.
Jon D is offline   Scotland
0
Reply With Quote
      11-17-2011, 03:34 PM   #50
kaishang
Colonel
 
Drives: 2010 E90 330d
Join Date: Jul 2010
Location: London

Posts: 2,198
iTrader: (0)

Quote:
Originally Posted by Jon D View Post
TWO big red switches? I can't think of any light aircraft which have more than ONE electrical master switch - what was the other one for?
As Ian commented, it's also guarded by a spring loaded plastic cover, which has to be consciously lifted with one digit, before it can be operated by another - must have been quite an 'accidental' operation.
Check out the two red master switches, with no cover, here:

kaishang is offline  
0
Reply With Quote
      11-17-2011, 07:11 PM   #51
Jon D
Colonel
 
Jon D's Avatar
 
Drives: F12 640i
Join Date: Sep 2009
Location: Scotland

Posts: 2,575
iTrader: (0)

Quote:
Originally Posted by kaishang View Post
Check out the two red master switches, with no cover, here:

What I see in that ATI stock photo is, what appears to be, a French registered Piper PA-28 Cherokee cockpit.
Regarding the TWO red master switches, with which you're obviously very familiar as an experienced pilot, I feel it incumbent of me to familiarise you with the aircraft controls. The red switch above and to the right of your (the pilot's) second knuckle on the throttle is indeed an electrical master switch, but there's only one of them. The other red thingy just by 'your' third knuckle, which you have mistakenly assumed to be a switch, is in fact the engine fuel mixture control lever.
Goodness me, so many red buttons, switches and levers - it's more than enough to confuse even the very best steely eyed birdmen of the skies.
Do a lot of flying - do you?
Jon D is offline   Scotland
0
Reply With Quote
      11-17-2011, 07:59 PM   #52
merchomini
Captain
 
merchomini's Avatar
 
Drives: 2005 Evolution 8
Join Date: Apr 2011
Location: USA alldaway

Posts: 786
iTrader: (0)

not a fan......i think the lci model is the best looking....
__________________
2005 Evolution 8 - Current
2007 SGM/coral e92 335i - Sold
2009 BSM lci e90 335i xdrive - Sold
merchomini is offline   United_States
0
Reply With Quote
      11-18-2011, 03:20 AM   #53
kaishang
Colonel
 
Drives: 2010 E90 330d
Join Date: Jul 2010
Location: London

Posts: 2,198
iTrader: (0)

Quote:
Originally Posted by Jon D View Post
Quote:
Originally Posted by kaishang View Post
Check out the two red master switches, with no cover, here:

What I see in that ATI stock photo is, what appears to be, a French registered Piper PA-28 Cherokee cockpit.
Regarding the TWO red master switches, with which you're obviously very familiar as an experienced pilot, I feel it incumbent of me to familiarise you with the aircraft controls. The red switch above and to the right of your (the pilot's) second knuckle on the throttle is indeed an electrical master switch, but there's only one of them. The other red thingy just by 'your' third knuckle, which you have mistakenly assumed to be a switch, is in fact the engine fuel mixture control lever.
Goodness me, so many red buttons, switches and levers - it's more than enough to confuse even the very best steely eyed birdmen of the skies.
Do a lot of flying - do you?
Bzzzt. You have correctly identified the red master switch and red mixture control lever, but failed to observe the electrical master is a split switch: there are two of them. Each is half the width of the white switches next door.
kaishang is offline  
0
Reply With Quote
      11-18-2011, 03:26 AM   #54
kaishang
Colonel
 
Drives: 2010 E90 330d
Join Date: Jul 2010
Location: London

Posts: 2,198
iTrader: (0)

Next question for the armchair experts: why are there two electrical master switches and how does the airplane remain in a climb with the engine running with the electrical system switched off?
kaishang is offline  
0
Reply With Quote
      11-18-2011, 03:30 AM   #55
creepy coupe
Major General
 
creepy coupe's Avatar
 
Drives: M235i
Join Date: Aug 2007
Location: UK

Posts: 8,172
iTrader: (2)

Garage List
2009 335i  [0.00]
Quote:
Originally Posted by kaishang View Post
Next question for the armchair experts: why are there two electrical master switches ?


Does is run 2 magnetos?

I had a go in this a few weeks back, she's a 60 year girl, but ran sweet as a nut


Last edited by creepy coupe; 11-18-2011 at 03:41 AM.
creepy coupe is offline  
0
Reply With Quote
      11-18-2011, 03:43 AM   #56
kaishang
Colonel
 
Drives: 2010 E90 330d
Join Date: Jul 2010
Location: London

Posts: 2,198
iTrader: (0)

Quote:
Originally Posted by creepy coupe View Post
Quote:
Originally Posted by kaishang View Post
Next question for the armchair experts: why are there two electrical master switches ?

Does is run 2 magnetos?
Correct. Magnetos saved the day!
kaishang is offline  
0
Reply With Quote
      11-18-2011, 03:45 AM   #57
kaishang
Colonel
 
Drives: 2010 E90 330d
Join Date: Jul 2010
Location: London

Posts: 2,198
iTrader: (0)

Great pic

Can it land in snow?!? Or someone just parked it there?
kaishang is offline  
0
Reply With Quote
      11-18-2011, 03:47 AM   #58
creepy coupe
Major General
 
creepy coupe's Avatar
 
Drives: M235i
Join Date: Aug 2007
Location: UK

Posts: 8,172
iTrader: (2)

Garage List
2009 335i  [0.00]
Quote:
Originally Posted by kaishang View Post
Great pic

Can it land in snow?!? Or someone just parked it there?
It can land in light snow and although that was taken at a Kent airstrip, the owner is often flying it to Norway and such places.
creepy coupe is offline  
0
Reply With Quote
      11-18-2011, 07:21 AM   #59
Jon D
Colonel
 
Jon D's Avatar
 
Drives: F12 640i
Join Date: Sep 2009
Location: Scotland

Posts: 2,575
iTrader: (0)

Quote:
Originally Posted by kaishang View Post
Bzzzt. You have correctly identified the red master switch and red mixture control lever, but failed to observe the electrical master is a split switch: there are two of them. Each is half the width of the white switches next door.
Quote:
Originally Posted by kaishang View Post
Next question for the armchair experts: why are there two electrical master switches and how does the airplane remain in a climb with the engine running with the electrical system switched off?
OK, the master, as you correctly say, is split - one half controls the battery circuit, the other controls the alternator circuit, but do you know why? Not something I'm previously familiar with, even on dual-bus systems, so I apologise for my lack of knowledge on the Piper.
Regarding your question on electrical power failure (or even inadvertent switching off ), as 'creepy coupé' correctly said, once started, the engine is self sustaining as the ignition is dual magneto powered and the engine driven pump will provide fuel regardless of whether you have gravity or suction feed.
Jon D is offline   Scotland
0
Reply With Quote
      11-18-2011, 07:32 AM   #60
kaishang
Colonel
 
Drives: 2010 E90 330d
Join Date: Jul 2010
Location: London

Posts: 2,198
iTrader: (0)

Quote:
Originally Posted by Jon D View Post
OK, the master, as you correctly say, is split - one half controls the battery circuit, the other controls the alternator circuit, but do you know why? Not something I'm previously familiar with, even on dual-bus systems, so I apologise for my lack of knowledge on the Piper.
I haven't read up on the reasoning behind the split switch but I'm guessing it is so that if you have an alternator regulator failure which means it keeps charging the battery, you can then isolate the alternator and continue on the battery. There may be some other failure mode where the battery is discharging despite the alternator going and in that case you want to isolate the battery until you need it.
kaishang is offline  
0
Reply With Quote
      11-18-2011, 08:10 AM   #61
MEGA
Dieseasal
 
MEGA's Avatar
 
Drives: LCI E92 335d M-Sport
Join Date: Jan 2009
Location: Harrow, London

Posts: 6,838
iTrader: (2)

Send a message via MSN to MEGA
Most. Off topic. Topic. Ever.

!

As an outside observer (and very tongue in cheek I might add.. ): You two seem quite disgruntled that the other knows something about planes. Are you both the local random light aircraft fact buffs for your respective pub quiz teams or anything?
__________________
Previously: 2003 Peugeot 206 1.6 8v | 2006 E90 320d M-Sport, 19" BBS CH, Full Ice-cold JL audio install, August 2010 Total BMW 6 page feature car. | 2003 Nissan 350Z GT Coupe 286BHP
Now:2010 E92 LCI 335d M-Sport

Last edited by MEGA; 11-18-2011 at 08:19 AM.
MEGA is offline   United Kingdom
0
Reply With Quote
      11-18-2011, 08:19 AM   #62
MEGA
Dieseasal
 
MEGA's Avatar
 
Drives: LCI E92 335d M-Sport
Join Date: Jan 2009
Location: Harrow, London

Posts: 6,838
iTrader: (2)

Send a message via MSN to MEGA
Quote:
Originally Posted by misterS3 View Post
Jesus whept! As one of them said, it's good the steering lock didn't also come on !!!!!

Brake must be pressed to start engine + engine can be turned off at high speed + Brakes are electronically servo assisted = very large collection of fail. Crazy stuff.
__________________
Previously: 2003 Peugeot 206 1.6 8v | 2006 E90 320d M-Sport, 19" BBS CH, Full Ice-cold JL audio install, August 2010 Total BMW 6 page feature car. | 2003 Nissan 350Z GT Coupe 286BHP
Now:2010 E92 LCI 335d M-Sport
MEGA is offline   United Kingdom
0
Reply With Quote
      11-18-2011, 08:28 AM   #63
kaishang
Colonel
 
Drives: 2010 E90 330d
Join Date: Jul 2010
Location: London

Posts: 2,198
iTrader: (0)

Quote:
Originally Posted by MEGA View Post
Most. Off topic. Topic. Ever.

!
The most off topic would have to be the threads where you start talking about tyres - winter tyres - and somehow it turns into a discussion about how you are related to some furry creature
kaishang is offline  
0
Reply With Quote
      11-18-2011, 10:00 AM   #64
Jon D
Colonel
 
Jon D's Avatar
 
Drives: F12 640i
Join Date: Sep 2009
Location: Scotland

Posts: 2,575
iTrader: (0)

Quote:
Originally Posted by MEGA View Post
Most. Off topic. Topic. Ever.
I was wondering when that comment was coming
Jon D is offline   Scotland
0
Reply With Quote
      11-18-2011, 10:17 AM   #65
flip4335
General Nuisance in a Private Conveyance
 
flip4335's Avatar
 
Drives: like it's rented
Join Date: Nov 2008
Location: behind the wheel

Posts: 1,823
iTrader: (1)

Garage List
Quote:
Originally Posted by M3-FAST View Post
If that is indeed the case, then how 'new' actually is this car? Or is it just an old E90 with a new front/rear end and interior?!
More like an evolution, with the increased wheelbase for more rear seating and cargo space, as well as overall dimensions approaching mid-size dimensions.

It would be a "stretch" to bolt on F30 parts to the E90...LOL
__________________

BMWCCA Member # 414198 Slightly Modded|e90|SGM|6MT|LCI MSport Conversion|MTech|Premium|Cold|Sport|Tint|Blackline |219M|PSS|Quaife|Helix|AR Catted|Cobb
Quaife Review: http://www.e90post.com/forums/showthread.php?t=311570
flip4335 is offline   United_States
0
Reply With Quote
      11-18-2011, 10:24 AM   #66
Jon D
Colonel
 
Jon D's Avatar
 
Drives: F12 640i
Join Date: Sep 2009
Location: Scotland

Posts: 2,575
iTrader: (0)

Quote:
Originally Posted by kaishang View Post
I haven't read up on the reasoning behind the split switch but I'm guessing it is so that if you have an alternator regulator failure which means it keeps charging the battery, you can then isolate the alternator and continue on the battery. There may be some other failure mode where the battery is discharging despite the alternator going and in that case you want to isolate the battery until you need it.
It's primary purpose is to provide a quick reset procedure:- If you lose alternator output and neither the field nor output breakers have tripped, switch off 'ALT' for I sec then switch back on to reset the overvoltage relay.
Not that I'm an expert, but your reasoning also makes good sense.
PS: perhaps we can veer off on another tangent in order to get even further off-topic
Jon D is offline   Scotland
0
Reply With Quote
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 07:13 PM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST