Re: [RCSE] Please help me assess slope!

2002-08-21 Thread ggareth

Here are a few piccies if anyone is curious.

In fact the hill is more pyramid than cone and it has good flat sides.

http://members.fortunecity.com/gazwaz/IMG_0787.jpg
http://members.fortunecity.com/gazwaz/IMG_0788.jpg
http://members.fortunecity.com/gazwaz/IMG_0792.jpg
http://members.fortunecity.com/gazwaz/IMG_0804.jpg
http://members.fortunecity.com/gazwaz/IMG_0808.jpg

cheers for all the replies :)
Gareth

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[RCSE] Please help me assess slope!

2002-08-20 Thread ggareth

As you might have guessed I am a newbie on the brink of buying a 
foamie trainer.

Anyway, today I went out and did an examination of my local slope.  
I've never seen anyone flying there and it's not listed as a site.  
Since I do not own a car this location is my only option.

The slope is actually a huge man-made conical hill which was once 
used for skiing.  It's 100m (300ft) high with slopes varying from 
vertical to a gentle slope.  It has faces in every direction meaning 
that it should provide lift with any wind direction.  Furthermore 
it's covered in high grass!

That's the good news.  The bad news is that there are floodlights, 
pylons, lifts and overhead cables.  Most of these are concentrated 
towards the top of the hill. 

I'm wondering if would be possible to fly half way up the slope where 
there are less obstacles.  Is this possible from a lift/turbulence 
point of view?

Then I'm also curious about how to land.  I know that aircraft always 
land into the wind but that would mean flying away from the hill...?

Thanks in advance
Gareth

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RE: [RCSE] Please help me assess slope!

2002-08-20 Thread Bill Swingle

Gareth,

-Yes, a slope will often work midway to the top.

-Landing is often quite challenging on the slope. The most obvious way is by
crabbing along the face of the slope. However, there are many, many
different ways. The best of which will depend on the wind, the slope, your
plane and personal preference. Each is tough to accurately describe. My
current favorite is to loop into a landing.

-The Cardinal rule of slope evaluation is: The only way to know is to FLY
it. The only way to guess is to SEE it.

We in cyberspace can guess, estimate and hope but with out seeing it, we
have only a small chance of being accurate.

Given what you've said, your site certainly seems plausible...

Sorry to be so guarded but I've been fooled many times.

Bill Swingle
Janesville, CA
[EMAIL PROTECTED]

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[RCSE] Please help me assess slope!

2002-08-20 Thread Scobie Puchtler or Sarah Felstiner




Sounds like a very manageable slope.
Yes you can probably fly halfway up successfully.
Two thirds might be better.
Slope landings are basically done across the
slope, as close to into the wind as you can get
without flying away from the slope.
If the lift is strong, you have to start out down
below you, and bring the plane across the slope
face while climbing up the slope to slow the
plane. In gentle slope lift, you can just make a
slightly lower pass, bring the pass in close to
the slope, and slow the glider down by climbing
just a little faster than the lift can support,
and swish, a gentle sideways landing, wings level,
or tilted just a little to match the slope, into
all that tall grass you mentioned. When this
becomes more familiar, it's not at all impossible
to refine this technique so that you fly your
slope pattern down below you on the slope, and do
this 'climb to land' pass directly into your hand
for a catch. In consistent slope lift, one nice
thing is that you can almost always abandon a
landing attempt and try again, simply by turning
back out away from the slope. So it's often
possible to try 10 or 20 landings before actually
touching down.

Dangerous Alternative:
On a slope with a soft surface, you can use your
height and speed to dive directly towards the
slope below you, pull up at just the right moment
for the conditions, come screaming up the slope,
bleeding energy into a downwind stall just a few
feet off the deck, and mush the plane into the
grass, headed directly up the slope. You should do
this landing after you have a few thousand
successful landings under your belt and the slope
is so familiar to you that you can fly an
aerobatic routine, eat a sandwich, and instruct
two or three newcomers all at once. Not for the
faint of heart.

If you can find a part of your slope that has a
flat, or even better a concave surface facing the
wind (called a 'bowl' in the world of sloping),
this is particularly nice. A conVEX slope has the
lift deteriorating off to each side, and a flight
too far across the slope to one side or the other
is hard to return from.  A 'bowl' concentrates the
lift into a reliable crescent band, and makes it
easier to pass back and forth in front of you
without worrying as you would on a convex slope
about going too far off the sides where the lift
gets ragged and turns into turbulence and sink.

Lift,
Scobie in Seattle


 -Original Message-
 From: ggareth [mailto:[EMAIL PROTECTED]]
 Sent: Tuesday, August 20, 2002 6:20 AM
 To: [EMAIL PROTECTED]
 Subject: [RCSE] Please help me assess slope!


 As you might have guessed I am a newbie
 on the brink of buying a
 foamie trainer.

 Anyway, today I went out and did an
 examination of my local slope.
 I've never seen anyone flying there and
 it's not listed as a site.
 Since I do not own a car this location
 is my only option.

 The slope is actually a huge man-made
 conical hill which was once
 used for skiing.  It's 100m (300ft)
 high with slopes varying from
 vertical to a gentle slope.  It has
 faces in every direction meaning
 that it should provide lift with any
 wind direction.  Furthermore
 it's covered in high grass!

 That's the good news.  The bad news is
 that there are floodlights,
 pylons, lifts and overhead cables.
 Most of these are concentrated
 towards the top of the hill.

 I'm wondering if would be possible to
 fly half way up the slope where
 there are less obstacles.  Is this
 possible from a lift/turbulence
 point of view?

 Then I'm also curious about how to
 land.  I know that aircraft always
 land into the wind but that would mean
 flying away from the hill...?

 Thanks in advance
 Gareth

 RCSE-List facilities provided by Model
 Airplane News.  Send subscribe and
 unsubscribe requests to
 [EMAIL PROTECTED]


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unsubscribe requests to [EMAIL PROTECTED]