HDTenEightyP/NetNews huggingface dataset:
From: pilla@cbnewsi.cb.att.com (michael.a.pilla)
Subject: Re: INSTRUCTOR REQUIREMENTS
Organization: AT&T
Date: Mon, 23 Nov 1992 14:39:40 GMT

In article <150.1.uupcb@feguy.infoserv.com> guy.byars@feguy.infoserv.com (Guy Byars)  writes:
>
>  A person recently joined our soaring club and has 4000+ hours in many
>different aircraft.  Within the past 4 months he has quickly gotten the
>Private glider, Commerical glider, and glider instructor rating.  He
>already had a power instructor rating which was how he could get the
>CFIG so quickly.
>
>  His glider time is now about 15 hours in gliders and about 40
>flights.  He now wants to be a club instructor.  There is concern that,
>while legal, such a small amount of glider time would not give one the
>experience requied to be a safe instructor.
>
>  Do any other clubs have minimum flight times in order to instruct
>at their club?

Our club does not have a minimum number of hours, but we do have
a chief CFI-G who passes on whether any CFI-G member can
instruct in club gliders.  Furthermore, we do impose
restrictions on teaching: pre-solo, solo-signoff, transition
(power) training, BFRs, new ships (e.g., glass), ...  This is
working well.  We did have one CFI-G with several thousands of
hours in jets (military DC-9s) who had to be informed that he
could not instruct in gliders not only because his glider
experience was limited, but because of concerns about judgement.

There really is no substitute for experience.  E.g., I have very
little experience with extensive X-C (beyond Silver) and so
cannot instruct in X-C techniques.  However, we have a very
experienced competition pilot who conducts an annual X-C clinic
including ground and "gaggle" air time on actual X-C legs.

I do recommend the policy of having a "review board" or chief
CFI-G establish ground rules, ...  I feel a lot more comfortable
with our operation now that this policy has been established.

Mike Pilla
Newsgroups: rec.aviation.soaring
From: hagood@sabre.den.mmc.com (Dave Hagood)
Subject: Re: Collegiate Soaring Association -- anybody out there?
Organization: Martin Marietta Astronautics Group
Distribution: usa
Date: Tue, 17 Nov 1992 20:21:25 GMT

In article <Bxusrn.Ct7@news.cso.uiuc.edu>, rls@uihepa.hep.uiuc.edu (Ray Swartz (Oh, that guy again)) writes about a request for CSA organizations to 
communicate amongst themselves.

	Well, John Campbell, whom I believe to be the President of the CSA, is
a physics professor at the University of Colorado at Denver (the Auraria 
Campus).  I would guess that John would have access to a computer; I will
talk to him and see if CSA organizations couldn't talk directly to him via
e-mail or whatever.

-------------------------------------------------------------------------
									|
David M. Hagood			Martin Marietta Astronautics Group	|
									|
Voice:  (303) 977-9657		When in danger, or in doubt,		|
E-mail: hagood@den.mmc.com	Run in circles, scream and shout.	|
Fax: (303) 977-1530							|
									|
-------------------------------------------------------------------------
     static char *disclaimer = "My opinions, not Martin Marietta's."    |
-------------------------------------------------------------------------

Newsgroups: rec.aviation.soaring
From: morss@t.Stanford.EDU (David Morss)
Subject: Re: INSTRUCTOR REQUIREMENTS
Organization: CS Department, Stanford University, California, USA
Date: Mon, 23 Nov 1992 00:46:09 GMT

Followup-To: 
Distribution: world
Organization: Computer Science Department, Stanford University.
Keywords:instructor requirements
A lot would depend on what his flight experiance has been.Tail wheel time acro etc would all be useful . lots of jet time and maybe he needs a little more time befor undertaking instructing.
From: donovanh@sptekwv1.wv.tek.com (Donovan Hammer;685-2499;60-850;;sptekwv1)
Newsgroups: rec.aviation.soaring
Subject: Re: Loops and slipstream
Keywords: loops slipstream stall buffet
Date: 17 Nov 92 22:02:19 GMT
Reply-To: donovan.hammer@tek.com
Organization: Tektronix Inc, Wilsonville, OR

Luke asked:

> There was consistently a mild but distinct burble/buffet as we pulled round 
> the last quarter of the loop. My instructor explained that this was due to
> flying through our own slipstream created on entry to the loop. He also said
> that this was more noticeable in glass ships with laminar flow wings. However,
> it occurred to me at the time that the sensation was very like pre-stall
> buffet - obviously I was pulling up moderatly hard at that point. 
> Unfortunately, I forgot to ask about this due to discussing other aspects of 
> the maneuver.

I can't say for sure for the loop, but the "wake" explaination has always been
used to explain a similar effect when performing 720 degree turns at a 60 degree
bank (This is a maneuver used in the USA for the Power A/C Commercial check ride.)
When this maneuver is done correctly, the pilot will hit the "wake" as he enters
the second 360 degree of turn.
-- 
                                       Don Hammer

 ==================================== ========================
| Donovan Hammer, Principal Engineer |                        |
| Tektronix                          | Glider Pilot's Truism: |
|        / Computer Graphics Group   | ---------------------- |
| PO Box 1000, MS 60-850             | Where there's up air,  |
| Wilsonville, Ore. 97070            |  there's down air.     |
| phone - (503) 685-2499             | Where there's down air,|
| fax   - (503) 682-1500             |  there's more down air.|
| email - donovan.hammer@TEK.COM     |                        |
 ==================================== ========================

Return-Received-To: donovan.hammer@tek.com
Newsgroups: rec.aviation.soaring
From: dick@hpqtdmba.sqf.hp.com (Dick Middleton)
Subject: Re: UK/Oz inter-affiliation
Date: Mon, 16 Nov 1992 09:28:29 GMT
Organization: Hewlett-Packard LTD, South Queensferry, Scotland
X-Newsreader: TIN [version 1.1.8 PL6]

In the UK individuals don't belong to the national association (British
Gliding Association); gliding clubs do. Individuals join one or more gliding
clubs as they please. The membership arrangements for clubs varies from club
to club. Some (e.g those in Scotland) have a reciprocal temporary membership
arrangement others don't. I'm not aware of any that reciprocate membership
with organisations in other countries.  

Too bad huh! If you come here make sure you bring your log-book etc. You'll
almost certainly have to have some sort of check flight at the club to select
to fly at if you want to fly club gliders. If you have you own glider they
may not bother.

In summary: you Oz membership is worth nothing in the UK.

Dick.


  Dick Middleton
  Phone: (+44 | 0) 31-331 7530
  Unix mail: dick@hpqtdma.sqf.hp.com
From: rls@uihepa.hep.uiuc.edu (Ray Swartz (Oh, that guy again))
Newsgroups: rec.aviation.soaring
Subject: Re: Improving lookout
Date: 18 Nov 92 09:16:52 GMT
Article-I.D.: news.Bxwn45.Ds
Reply-To: rls@uihepa.hep.uiuc.edu
Organization: Vis-Orb Tragnetics Recorporation

In article <gaynier.722045320@s1.elec.uq.oz.au>, gaynier@elec.uq.oz.au (Ron Gaynier) writes:
[...]
>what I would like to try is somekind
>of exercise to convince people that there lookout isn't what 
>it should be. Does anyone out there know of such a thing? 

	One thing I did recently was to go to the grocery store, and buy a
couple of those 3.5 inch diameter rubber discs that have a bunch of "plunger"
ty suction cups on each side.  These are sold for use in the shower, to hold
the soap to the wall in a convenient location.  They are also the perfect size
to cover up instruments.  Then, the next time I went up with a student (he
wanted a flight test signoff), I put one of these on the airspeed indicator and
one on the altimeter.  He HAD to fly without reference to the instruments. 
Then, as we went through the procedures, I would periodically have him estimate
his airspeed and altitude, and then look under the discs to see how well he
did.  He did a very good job.   After getting his altitude within 50-100 feet
on all 4 attempts, I peeled that one off and, effectively, "gave it back" to
him.  For the airspeed, though, I wanted it covered until landing.  I thought
it would be a challenge to him to do a spot landing (we had small orange cones
set up along the runway) without airspeed reference.  You see, many people
without an airspeed indicator will hold 5-10 mph fast, and will tend to float a
long way down the runway.  Also, I asked him to use a little wheel-brake as
possible.  He did so well, I can't really claim that I could do better.
BTW, he got my endorsement.


	Also, Ron, I like your idea of having the student look at the outside
wing.  I'll try that myself.


Raymond L. Swartz Jr. (rls@uihepa.hep.uiuc.edu)
================================================================================
Excel in everything -- specialization is for insects!! (paraphrase of R.H.)
Fantasy: Wave soaring over Olympus Mons on Mars
================================================================================
Newsgroups: rec.aviation.soaring
From: cohler@vxcrna.cern.ch (Mike Cohler)
Subject: Re: UK/Oz inter-affiliation
News-Software: VAX/VMS VNEWS 1.41    
Organization: European Organization for Nuclear Research, CERN
Date: Mon, 16 Nov 1992 17:32:00 GMT

In article <11050@uqcspe.cs.uq.oz.au>, colin@cs.uq.oz.au writes...
>I'm looking to return home to the UK in July, and will at that time
>have about 5 months worth of my Gliding Federation of Australia
>membership to run. Does anyone know if this membership will entitle me
>to membership of the British equivalent organisation, or will I have to
>join the British equiv.? 

When you get to the UK find a gliding club near your new "home"
When you get there ask them about reciprocal membership.  For
some period of time you may be able to fly at club rates with
a daily membership in the region of 5 pounds.  Alternately you
can simply take out normal club membership if you will be in the
UK permanently.  Individuals do NOT normally become members of
the British Gliding Association. Each club has to pay a "poll tax" (!!!)
to the BGA for each of its members, and so by taking membership
of a club you get benefits of BGA activities anyway.  If you want
to subscribe to the Sailplane and Gliding magazine, then you have
to do this anyway at a cost around 14 pounds a year... just write
to the BGA, Kimberley House, Vaughan Way, Leicester, England LE1 4SE
Mike
==============================================================
|                                                            |
|        Mike Cohler -  preferred email address:             |
|                       MDC1@VAXA.YORK.AC.UK                 |
|                   ie  MDC1%VAXA.YORK.AC.UK@UKACRL.BITNET   |
|                                                            |
|        UK PPL and Glider Pilot                             |
|                                                            |
==============================================================
Newsgroups: rec.aviation.soaring
From: tks@kestrel.nwc.navy.mil (Tom Serkowski)
Subject: Re: K-13 Acro
Organization: NAWS, China Lake, CA
Distribution:  world
Date: Sat, 21 Nov 1992 01:42:51 GMT

In article <Bxxvyz.24G@usenet.ucs.indiana.edu>, petri@venus.iucf.indiana.edu (HOWARD PETRI) writes:

|> A response from Steve McRobert
|> 
|> >What happens to your airspeed?
|> 
|> This is difficult to say. I don't think I can believe the airspeed indicator
|> in a spin any more than I can believe it in a slip. The static system can't
|> handle that situation. I know the wind noise increases though. My senses
|> lead me to believe that  the speed is not picking up rapidly but I haven't
|> been waiting to find out, I have been recovering when the event occurs.
|> Howard Petri
|> Pegasus (EJ)

In a spin, the airspeed should indicate low.  So as long as the A/S still
indicates low, you are probably still spinning.  If the airspeed starts to
indicate more, you are probably coming out of the spin & entering a
spiral.

Tom
Newsgroups: rec.aviation.soaring
From: rcg@delphi.dseg.ti.com (bob gibbons)
Subject: Re: Audio Variometer
Organization: Texas Instruments
Date: Tue, 17 Nov 1992 00:54:56 GMT

In article <1992Nov16.202500.27152@crd.ge.com> deitsch@sol.crd.ge.com (Andy Deitsch) writes:

>   Ball Variometers makes a model specifically for sailplane pilots.  You
>   may want to call them to find out more.  They are a small company and
>   very willing to talk and will probably take the M-20 in exchange if it
>   is brand new (i.e. no damage).


A word of warning regarding Ball altitude derivative varios for
sailplane use. We have a very nice Ball vario about 3 years old. In
spite of several returns to the factory when first purchased, we have
never been able to eliminate RFI interference. It pegs hard over for
several seconds (and then sticks at the peg for several more seconds)
whenever the radio transmits. We have tried bypass filters, mumetal
wrap, etc. Nothing helps. The factory replaced the original plastic case
with a supposedly carbon loaded conductive case, no effect. I seem to
recall that Ball's earlier capacitive diaphragm varios originally had this
problem, but they were finally corrected. 

Bottom line, be very careful with the newer Ball altitude derivative
varios if you also have to transmit on VHF. For those that are not
familiar with the concept, the altitude derivative varios do not work on
flow into or out of a flask as most varios do, but measure altitude with
a microchip sensor and differentiate the output to get rate of altitude change,
i.e., climb or sink rate.

Incidentally, anyone without a radio in their ship need a nice Ball
Altitude derivative vario. Triple time constant with switch, micropower,
runs all summer from a 9 volt transister battery. $250 when new 3 years
ago, make me an offer.



--
Bob Gibbons				Texas Instruments
Internet: rcg@delphi.dseg.ti.com	Dallas, TX
Newsgroups: rec.aviation.soaring
From: luke@cs.city.ac.uk (Luke Whitaker)
Subject: Loops and slipstream
Keywords: loops slipstream stall buffet
Organization: City University
Date: 17 Nov 92 17:57:48 GMT


I was taking the opportunity the other day to learn how to loop a glider, 
under instruction in a K13 -- a working thermal before next spring is 
about as likely as a return to full employment hereabouts :-(.

There was consistently a mild but distinct burble/buffet as we pulled round 
the last quarter of the loop. My instructor explained that this was due to
flying through our own slipstream created on entry to the loop. He also said
that this was more noticeable in glass ships with laminar flow wings. However,
it occurred to me at the time that the sensation was very like pre-stall
buffet - obviously I was pulling up moderatly hard at that point. 
Unfortunately, I forgot to ask about this due to discussing other aspects of 
the maneuver.

What do other pilots think? Was it likely to have been our own slipstream ?
I have no reason not to believe the instructor, who was happy with the way I
was flying the maneuver - it's just I would hate to stall at high speed while 
pulling out of a loop!

Luke - sometime K6BR, K8, K13 pilot. Essex GC, UK.

Newsgroups: rec.aviation.soaring
From: gaynier@elec.uq.oz.au (Ron Gaynier)
Subject: Re: INSTRUCTOR REQUIREMENTS
Organization: Prentice Centre, University of Queensland
Date: Tue, 24 Nov 1992 01:53:28 GMT

In <150.1.uupcb@feguy.infoserv.com> guy.byars@feguy.infoserv.com (Guy Byars)  writes:


"|"  A person recently joined our soaring club and has 4000+ hours in many
"|"different aircraft.  Within the past 4 months he has quickly gotten the
"|"Private glider, Commerical glider, and glider instructor rating.  He
"|"already had a power instructor rating which was how he could get the
"|"CFIG so quickly.

"|"  His glider time is now about 15 hours in gliders and about 40
"|"flights.  He now wants to be a club instructor.  There is concern that,
"|"while legal, such a small amount of glider time would not give one the
"|"experience requied to be a safe instructor.

"|"  Do any other clubs have minimum flight times in order to instruct
"|"at their club?

Here in Oz you need a minimum of 75 (or is it a 100?) hours and a 'C'
certificate to even begin training to become an instructor.

I wouldn't be concerned about your friends safety since his experience
in other aircraft types is certainly high, not to mention he is already
a power CFI.

I would be concerned about his x-country ability and thermaling techinque.
How is he going to teach skills he probably hasn't mastered yet himself?
In 15 hours how much x-country flying has he done? Is he just after another
rating?

We put a strong emphasis on producing students who are proficient x-country 
pilots since there seems to be a higher retention rate for students who can
fly x-country successfully. 

If students at your club normally have lessons with more than one instructor
in the course of their training then I wouldn't be to concerned since they
can pick up the additional skills from other instructors. If he would be
teaching people from start to finish then the lack of soaring experience
might be a problem.

Ron Gaynier
From: guy.byars@feguy.infoserv.com (Guy Byars) 
Newsgroups: rec.aviation.soaring
Subject: WANTED: VINTAGE INSTRM.
Date: 20 Nov 92 23:57:00 GMT
Distribution: world
Organization: Soaring Society of America's BBS
Reply-To: guy.byars@feguy.infoserv.com (Guy Byars) 


  I am posting this for my friend, John Molumphy in Roanoke VA.

  He is restoring a vintage sailplane, SGS 1-19.  This is essentially a
single place 2-22.  He needs help finding original instruments.
Specifically, he needs:

   Pellet vario   .or.  Memphis vario.  (preferably in working order)
for a 3" panel hole.

  I have personally seen the restoration project and the results will be
first class.  If anyone can help support this effort, the please contact
him:
                        John Molumphy
                        703-345-8809 w
                        703-989-0135 h
  He doesn't have E-mail, so you can reply to him via me, Guy Byars at
feguy@cvg.sdrc.com.
                                                Guy Ford Byars
                            
Newsgroups: rec.aviation.soaring,rec.aviation.misc,rec.aviation.pilot
From: c60c-3gi@web-3c.berkeley.edu (Masayuki Karahashi)
Subject: thanks...
Organization: University of California, Berkeley
Distribution: usa
Date: Sat, 21 Nov 1992 11:11:48 GMT


just wanted to say thanks for all of you out there that gave me a kind
reply to my question regarding learning to fly gliders in the winter.

thanks.

---Masa Karahashi
Newsgroups: rec.aviation.soaring
From: jon@dikas.no (Jon Marthins)
Subject: Re: Improving lookout
Organization: Dikas (Digitale Kartsystemer)
Date: Wed, 18 Nov 1992 16:10:24 GMT

In article <Bxwn45.Ds@news.cso.uiuc.edu>, rls@uihepa.hep.uiuc.edu 
  (Ray Swartz (Oh, that guy again)) writes:
> In article <gaynier.722045320@s1.elec.uq.oz.au>, gaynier@elec.uq.oz.au 
    (Ron Gaynier) writes:
> [...]
> >what I would like to try is somekind
> >of exercise to convince people that there lookout isn't what 
> >it should be. Does anyone out there know of such a thing? 
> 
> [ reply which describes covering instruments ]

We also have good results with covering altimeter and airspeed indicator.
On one of the checkflights for the license the student must fly with
these covered and demonstrate to the check instructor that he/she can fly
without altitude and speed information.  The accuracy must be within +/- 20%
for the altitude.

In fact, our new procedure for basic training states that flights no.
2 thru 10 shall be with altimeter and speed indicator covered.

We've never had a mid-air involving gliders in Norway.

	-jon

       ___
________|________  Jon Marthins
        0	   jon@dikas.no      "Gliderpilots keep it up longer...."
From: colin@cs.uq.oz.au (Colin Millerchip)
Newsgroups: rec.aviation.soaring
Subject: UK/Oz inter-affiliation
Date: 15 Nov 92 23:31:44 GMT
Article-I.D.: uqcspe.11050
Reply-To: colin@cs.uq.oz.au

I'm looking to return home to the UK in July, and will at that time
have about 5 months worth of my Gliding Federation of Australia
membership to run. Does anyone know if this membership will entitle me
to membership of the British equivalent organisation, or will I have to
join the British equiv.? 

Thanks.

C.


--
|Colin Millerchip           | "And all this science I don't understand,|
|University of Queensland,  |  It's just my job five days a week"      |
|Brisbane, Australia.       |   - "Rocketman", Elton John              |
|colin@cs.uq.oz.au          |                                          |
Newsgroups: rec.aviation.soaring
From: jglarson@undergrad.math.waterloo.edu (Johan Larson)
Subject: soaring popularity
Organization: University of Waterloo
Date: Mon, 23 Nov 1992 18:26:56 GMT

I've been told that there are approx.
16 000 glider pilots in the US, and another
1600 in Canada.  Is soaring more popular in other places?
In particular, is it more popular in Europe?
-- 
Johan Larson
                    The net is packed with objectivists, anarchists, 
                    libertarians and self-appointed threats to the current 
                    order, writing on company time with company equipment.
Newsgroups: rec.aviation.soaring
From: petri@venus.iucf.indiana.edu (HOWARD PETRI)
Subject: K-13 Acro
News-Software: VAX/VMS VNEWS 1.3-4   
Reply-To: petri@venus.iucf.indiana.edu
Organization: INDIANA U. CYCLOTRON FACILITY, BLOOMINGTON, IN
Distribution:  world
Date: Wed, 18 Nov 1992 01:04:06 GMT

     Well, there are no thermals left here in the midwest and I brought the
Pegasus home last week so I decided to practice some spins in our club
K-13. Now I can't comment on the buffeting during a loop posting, but
I wonder if anyone can comment on this. I have no trouble in entering
the spin with a very nice nose down attitude. About 1/2 to 3/4 of a
turn later the nose comes up to a less vertical angle, and the wind noise
changes. Now at this point I recover since I can't tell if I have fallen
out of the spin and into a spiral dive or not. It may be that the nose is
just nutating and if I held it in longer it would go nose down again. I
have tried cross controls and they make no difference. I have done them
alone and with someone in the glider with me, the same results. The
other person with me has tried it with the same results; so it is not
a pilot dependent effect. 

     So, anybody with K-13 experience ever see this before?
     Any net opinions of what is happening?
     Should I let it rotate longer after the nose rises?
     Should I stay home a watch TV and live a little longer?

Howard (i'd rather spin than watch TV) Petri
Pegasus  (EJ)