Re: [Flightgear-devel] First real flight

2003-10-27 Thread Martin Spott
Lee Elliott [EMAIL PROTECTED] wrote:

 Sorry this is OT but there isn't anyone else who'd really understand.

Still worth reading.

Thanks,
Martin.
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Re: [Flightgear-devel] First real flight

2003-10-27 Thread David Megginson
Martin Spott writes:

  Lee Elliott [EMAIL PROTECTED] wrote:
  
   Sorry this is OT but there isn't anyone else who'd really understand.
  
  Still worth reading.

Absolutely.  I missed the original posting, so I had to yank it out of
the archives:

  http://baron.flightgear.org/pipermail/flightgear-devel/2003-October/022083.html

It was an interesting narrative, thanks.

  Most noticable difference - my seat here at home doesn't move.  You
  don't feel the lift and sink through your backside:) Or the gusts
  and turbulence...

Turbulence sucks: when I'm flying, I usually try to climb out above
it.  Turbulence often means thermals and updrafts, though, so I
imagine that soaring types actually go looking for it.  The gusts
disappear usually a few hundred feet above the ground.  The turbulence
disappears anywhere between 1,000 and 10,000 feet above the ground,
depending on all kinds of factors.

The faster you go, the less you feel the gusts and turbulence.  In a
slow glider, I imagine that the effects are very pronounced.

  Most disconcerting difference - there was little sense of forward
  motion so when in moderate bank it felt more like we were tipping
  over rather than turning.  In steeper banks there was a bit of G
  and it actually felt a bit more secure.

If you felt any sideways pull, then the turns were not coordinated.
Slipping turns are good ways to lose altitude, and I'd guess that
soaring pilots use them quite a bit to get down to the field.

  Approach and landing was not what I'd expect either - stick out the
  airbrakes while still several hundred feet in the air and then dive
  down to the ground, level off and flair.

Sadly, there are powered-plane pilots who try to do the same thing,
even through flaps aren't exactly air brakes.

  Sorry this is OT but there isn't anyone else who'd really
  understand.

On the contrary, it was an excellent posting.


All the best,


David

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Re: [Flightgear-devel] First real flight

2003-10-27 Thread Lee Elliott
On Monday 27 October 2003 23:41, David Megginson wrote:

 The faster you go, the less you feel the gusts and turbulence.  In a
 slow glider, I imagine that the effects are very pronounced.

The a/c we were in was quite a 'tame' craft and my friend showed me what 
the stall onset was like - at around 30kias you could fell a sort of 
'thrumming' through the a/c  - a very gentle oscillation (sp?) that was 
regular and superimposed, or 'under' the turbulance buffet.  Sign of a 
good training a/c I guess - it was clearly felt even though it was pretty 
bumpy anyway.

 Most disconcerting difference - there was little sense of forward
   motion so when in moderate bank it felt more like we were tipping
   over rather than turning.  In steeper banks there was a bit of G
   and it actually felt a bit more secure.
 
 If you felt any sideways pull, then the turns were not coordinated.
 Slipping turns are good ways to lose altitude, and I'd guess that
 soaring pilots use them quite a bit to get down to the field.

Yeah - we were going down at that point but we were banked approx 50-60 
deg (my guess).  Very strange to compare 'theory'against practice:)

 
   Approach and landing was not what I'd expect either - stick out the
   airbrakes while still several hundred feet in the air and then dive
   down to the ground, level off and flair.
 
 Sadly, there are powered-plane pilots who try to do the same thing,
 even through flaps aren't exactly air brakes.

It was from FlightGear that I was surprised at the approach. No, it's not 
the sort of thing you would do in a powered a/c.  I wonder how much of 
this might be due to the all-up weight vs. lift ratios between a glider 
and a powered aircraft.  The speed-brakes were perfectly balanced - I 
didn't detect any appreciable trim change - very impressive:)

We watched a couple of the instructors checking each other out, flying 
close to the stall, practicing, into the wind.  With 20+ kts wind across 
the field (the 15kt windsocks were horizontal most of the day) and 
typical stall speeds of ~ 30 kts, they were making barely 10kts ground 
speed:)

They were doing some spins too:)

 
   Sorry this is OT but there isn't anyone else who'd really
   understand.
 
 On the contrary, it was an excellent posting.

It was an excellent experience:)

LeeE
 
 
 All the best,
 
 
 David
 
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[Flightgear-devel] First real flight

2003-10-25 Thread Lee Elliott
Hello all,

I finally got my feet off the ground for the first time for real today - I 
had a couple flights in a Grob 103 (http://www.glide.co.uk/aboutus/
images/EWP3.jpg is the actual a/c).

One winch launch and one aero-tow.  You don't half go up quick on the 
winch launch:)  We had 20-25 kt oblique cross-winds and lots of small 
turbulence with the result that they were both pretty bumpy rides:)  
Hardly ideal soaring conditions and no-one stayed up very long - our 
air-tow was one of the longest flights at 20 minutes.

Most noticable difference - my seat here at home doesn't move.  You don't 
feel the lift and sink through your backside:)  Or the gusts and  
turbulence...

Most disconcerting difference - there was little sense of forward motion 
so when in moderate bank it felt more like we were tipping over rather 
than turning.  In steeper banks there was a bit of G and it actually felt 
a bit more secure.

Approach and landing was not what I'd expect either - stick out the 
airbrakes while still several hundred feet in the air and then dive down 
to the ground, level off and flair.

 It was amusing to balance the a/c on it's center-line u/c, on the ground 
after landing, just using the wind over the ailerons:)

Sorry this is OT but there isn't anyone else who'd really understand.

A most enlightening experience;)

LeeE


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