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mounting hinges/Email Mechanics ;-)

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John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Tue Apr 16, 2013 5:40 pm Post subject: mounting hinges/Email Mechanics ;-)

The editing can be changed after sending if you are posting on the

matronics.com forum. If you are doing it by email, then it can't be edited

after sending. Thanks for pointing that out.



Ralph B



Ralph B/Kolbers:



That is why I do it the way I do.



If I get lazy, don't proof read, send a less than good quality post; then I

have to correct the bad one with, hopefully, a good one.



BTW:  Had a great week at Sun and Fun 2013, my 30th consecutive trip to

Lakeland.  Certainly has changed a lot during the past 30 flyins.  I'm old

fashioned.  Still like the old way we did things best.



Got to visit with a lot of my old friends.  What better way to spend the

day.



Looking forward to the 2013 Kolb Homecoming 17-19 May 2013.  



I flew down at 10,000 feet.  Had a 20 mph headwind where I normally fly, low

level.  Started climbing out of Gantt IAP.  By the time I got to 8,000 feet,

the wind had started to turn in my favor.  10,000 feet yielded a 20 mph tail

wind.  Ain't tail winds great.



Flew 4,000 feet on the return flight.  Not much help from the wind.



Round trip was 840 sm.  



Surprisingly, I burned 5.0 gph at 5,200 rpm at 10,000 feet.  At low

altitudes and 5,200 rpm, fuel burn is 5.5 gph.



john h

mkIII

Titus, Alabama

_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

Richard Pike

Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee

Posted: Tue Apr 16, 2013 7:45 pm Post subject: Re: mounting hinges/Email Mechanics ;-)

Nice. What was your IAS?

_________________
Richard Pike
Kolb MKIII N420P (420ldPoops)
Kingsport, TN 3TN0

Forgiving is tough, being forgiven is wonderful, and God's grace really is amazing.

Thom Riddle

Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)

Posted: Wed Apr 17, 2013 3:11 am Post subject: Re: mounting hinges/Email Mechanics ;-)

....

Surprisingly, I burned 5.0 gph at 5,200 rpm at 10,000 feet. At low altitudes and 5,200 rpm, fuel burn is 5.5 gph. 

....

Should not be a surprise because at 10,000 feet 5200 rpm makes less power than at 4,000 feet due to less dense air. Less power means less fuel consumption.

Don't mean to split hairs, just asking: 

Did you really mean you flew at 10,000 feet east bound against west bound IFR traffic, or perhaps you meant 9,500'?

_________________
Thom Riddle
Buffalo, NY (9G0)

Don't worry about old age... it doesn't last very long.
- Anonymous

John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Wed Apr 17, 2013 3:28 am Post subject: mounting hinges/Email Mechanics ;-)

Nice. What was your IAS?

 



Richard P/Kolbers:



Averaged about 75 to 80.



john h

mkIII

Titus, Alabama

_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Wed Apr 17, 2013 3:58 am Post subject: mounting hinges/Email Mechanics ;-)

Should not be a surprise because at 10,000 feet 5200 rpm makes less power

than at 4,000 feet due to less dense air. Less power means less fuel

consumption.

 

Thom Riddle

 

Thom R/Kolbers:



Yes, I was surprised. Up until this flight my 912ULS burned 5.5 gph at 5,200

rpm no matter what altitude I flew.



When I refueled at Cross City, FL, after 4.0 hours, it took 20.1 gals.  Hope

it will keep on doing that.



john h

mkIII

Titus, Alabama

_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

ceengland7(at)gmail.com
Guest

Posted: Wed Apr 17, 2013 10:47 am Post subject: mounting hinges/Email Mechanics ;-)

On 04/17/2013 06:58 AM, John Hauck wrote:

 	  Quote: 	
		   



   

 Should not be a surprise because at 10,000 feet 5200 rpm makes less power

 than at 4,000 feet due to less dense air. Less power means less fuel

 consumption.

   

 Thom Riddle

   

 Thom R/Kolbers:



 Yes, I was surprised. Up until this flight my 912ULS burned 5.5 gph at 5,200

 rpm no matter what altitude I flew.



 When I refueled at Cross City, FL, after 4.0 hours, it took 20.1 gals.  Hope

 it will keep on doing that.



 john h

 mkIII

 Titus, Alabama



Does your 912 have a method to manually lean the mixture? If not, you 
	


could probably do even better at altitude if you added that. As I'm sure 

you know (but other, UL-only participants might not), not only do you 

make less power up there, but the drag is quite a bit less, too, meaning 

significantly lower power is required for the same speed.



Charlie

John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Wed Apr 17, 2013 11:13 am Post subject: mounting hinges/Email Mechanics ;-)

Does your 912 have a method to manually lean the mixture? Charlie



 

912 Bing carbs are altitude and temperature compensating.



john h

mkIII

Titus, Alabama

_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

ceengland7(at)gmail.com
Guest

Posted: Wed Apr 17, 2013 11:34 am Post subject: mounting hinges/Email Mechanics ;-)

Yes, but it's doubtful they can manage the extra leaning that's possible at lower power settings. 



Sent from my iPhone



On Apr 17, 2013, at 2:13 PM, "John Hauck" <jhauck(at)elmore.rr.com> wrote:



 	  Quote: 	
		   

 

 

 

 Does your 912 have a method to manually lean the mixture? Charlie

 

 

 

 

 912 Bing carbs are altitude and temperature compensating.

 

 john h

 mkIII

 Titus, Alabama

John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Wed Apr 17, 2013 5:34 pm Post subject: mounting hinges/Email Mechanics ;-)

<ceengland7(at)gmail.com>



Yes, but it's doubtful they can manage the extra leaning

that's possible at lower power settings. 



 

Charlie E/Kolbers:



The Bings lean as much as I want them too.  The 912 is still

climbing at 14,500 feet.  John Williamson was still climbing

at 15,000 feet.  Midrange is tuned right next to too lean on

the 80 and 100 horse 912.  I experienced a too lean

condition on my first flight to Alaska in 1994, but did not

have the experience with the engine, was brand new when I

departed Alabama, to properly diagnose what was going on.  A

few months after returning from Alaska, when the weather

cooled in Alabama, I discovered the problem, raised the fuel

needles a notch, and cured my problem.  Would have saved me

a bunch of grief in Alaska if I could have figured it out.

The guys at ROTAX couldn't figure it out either.



john h

mkIII

Titus, Alabama

_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

yellowbird1

Joined: 01 Nov 2012
Posts: 88

Posted: Thu Apr 18, 2013 5:39 pm Post subject: mounting hinges/Email Mechanics ;-)

Just out of curiosity, how big js/are your tank(s)?



Sent from my iPad



Brad



On Apr 17, 2013, at 5:58, "John Hauck" <jhauck(at)elmore.rr.com> wrote:



 	  Quote: 	
		   

 

 

 

 

 Should not be a surprise because at 10,000 feet 5200 rpm makes less power

 than at 4,000 feet due to less dense air. Less power means less fuel

 consumption.

 

 Thom Riddle

 

 

 

 Thom R/Kolbers:

 

 Yes, I was surprised. Up until this flight my 912ULS burned 5.5 gph at 5,200

 rpm no matter what altitude I flew.

 

 When I refueled at Cross City, FL, after 4.0 hours, it took 20.1 gals.  Hope

 it will keep on doing that.

 

 john h

 mkIII

 Titus, Alabama

_________________
Brad Nation,
Albuquerque, NM
MK3 Xtra

John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Fri Apr 19, 2013 4:21 am Post subject: mounting hinges/Email Mechanics ;-)

Just out of curiosity, how big js/are your tank(s)?



Sent from my iPad



Brad

 



Brad N/Kolbers:



Knew I was going to need a lot more than 10 gals of fuel,

based on my experience with the Ultrastar and Firestar.

During construction the mkIII, we designed and fabricated a

25 gal alum fuel tank.  Built it out of 5052 .050 alum.

Sloshed it when complete.  Has never had a leak.  Have never

come up short on fuel, except once.  Landed at Kit Carson

County Airport, Colorado, with .75 gal.  That was too close.



john h

mkIII

Woodville, Florida

_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

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