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Running runup?



 
 
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  #1  
Old June 30th 04, 09:00 AM
Thomas Borchert
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Ajw,

There is nothing - absolutely nothing - half so much worth doing
as simply messing around with airplanes.

You do mean, don't you, referring to your sign off, subject to the limitation
"sith your clothes on"?


Ah, to be young again ;-)

--
Thomas Borchert (EDDH)

  #2  
Old June 30th 04, 04:03 PM
G.R. Patterson III
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Thomas Borchert wrote:

Ah, to be young again ;-)


This time with money. :-)

George Patterson
None of us is as dumb as all of us.
  #3  
Old June 30th 04, 09:00 AM
Thomas Borchert
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Dale,

Always. I fly from a turf field....stationary runup is bad for the
prop.


How? If it were dirt, I might understand, but turf?

Being on
grass the speed doesn't become a big issue...no need to hold brakes
during the checks.


I disagree, strongly. Going with 2000 rpm, our Tobago would move like a
rocket on our turf field.

--
Thomas Borchert (EDDH)

  #4  
Old June 30th 04, 06:01 PM
Dale
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In article ,
Thomas Borchert wrote:


How? If it were dirt, I might understand, but turf?


There's dirt under that grass. Even water can erode a prop, imagine
what dirt or small stones can do.

--
Dale L. Falk

There is nothing - absolutely nothing - half so much worth doing
as simply messing around with airplanes.

http://home.gci.net/~sncdfalk/flying.html
  #5  
Old June 30th 04, 06:02 PM
Dale
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In article ,
Thomas Borchert wrote:



I disagree, strongly. Going with 2000 rpm, our Tobago would move like a
rocket on our turf field.


Have you tried it? Sure, you'll be moving faster than a "walking pace"
taxi, but not so fast as to be a hazard.

--
Dale L. Falk

There is nothing - absolutely nothing - half so much worth doing
as simply messing around with airplanes.

http://home.gci.net/~sncdfalk/flying.html
  #6  
Old July 1st 04, 04:01 AM
Newps
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"Dale" wrote in message
...

Have you tried it?


Yes. At 2000 rpm I would accelerating at quite a clip. After a couple
hundred yards I'd be doing in excess of 30 mph.


  #7  
Old July 1st 04, 04:34 PM
G.R. Patterson III
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Newps wrote:

Yes. At 2000 rpm I would accelerating at quite a clip. After a couple
hundred yards I'd be doing in excess of 30 mph.


If I tried to do my runup with no brakes, I'd be airborne before I finished the mag
check.

George Patterson
None of us is as dumb as all of us.
  #8  
Old July 1st 04, 05:50 PM
Dale
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In article ,
"Newps" wrote:


Yes. At 2000 rpm I would accelerating at quite a clip. After a couple
hundred yards I'd be doing in excess of 30 mph.



Good grief, how long does it take you to cycle a prop? G You're only
at that power setting for a few seconds...but by all means do what
you're comfortable with.

--
Dale L. Falk

There is nothing - absolutely nothing - half so much worth doing
as simply messing around with airplanes.

http://home.gci.net/~sncdfalk/flying.html
  #9  
Old July 1st 04, 11:00 AM
Thomas Borchert
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Dale,

Have you tried it? Sure, you'll be moving faster than a "walking pace"
taxi, but not so fast as to be a hazard.


Yes. And I disagree. Definitely hazardous.

--
Thomas Borchert (EDDH)

  #10  
Old June 30th 04, 11:47 AM
Cub Driver
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On Tue, 29 Jun 2004 08:38:23 -0800, Dale wrote:

Always. I fly from a turf field....stationary runup is bad for the
prop. Once rolling I come up to 1700 for the mag check, then back to
idle to control speed.....up to 2000 for a quick prop check. Being on
grass the speed doesn't become a big issue...no need to hold brakes
during the checks.


Wow. I think I will leave that one for the next life.

I fly from a turf field too. The only time the surface has ever been
an issue is when a 172 driver was taxiing too fast and dug up some
stones with his prop.

We do have the occasional walk-through by the Boy Scouts, who pick up
stones and stuff. I suppose the scout-master is a pilot.


all the best -- Dan Ford
email: (put Cubdriver in subject line)

The Warbird's Forum
www.warbirdforum.com
The Piper Cub Forum www.pipercubforum.com
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