[Boatanchors] Re: Boatanchors Digest, Vol 17, Issue 20

Fri Jun 17 20:56:38 EDT 2005

Fascinating stuff. Often what we think of now is just a modification of
something someone else thought of decades or centuries ago. Jack Northrup and
his Flying Wing, can you say stealth fighter? The technology to stabilize the
wing did not exist then, but when it di, look what showed up again. Hmmm.	

Lloyd, I knew you had worked in the aircraft industry, but never knew you were
as heavily into it as you are. Any flying of these under your belt too? 

----------
From: Lloyd KK7IZ <kk7iz at cox.net>
To: w4okw <w4okw at gmpexpress.net>; boatanchors at mailman.qth.net
Subject: Re: [Boatanchors] Re: Boatanchors Digest, Vol 17, Issue 20
Date: Friday, June 17, 2005 7:46 PM

On the subject of glass cockpits:
I just retired from an operation that is the completions center for the MD 
helicopters in Mesa, Az. I did mostly CAD drafting and systems engineering. 
We were installing the 2 and 4 tube EFIS systems in the 900 series ships. I 
mentioned one day that the idea was not really new. Bill Lear had envisioned 
it back in 1946-47 when he built the Lear Omnimatic, a VOR system that used 
a 3" scope tube for an indicator. The young pups all laughed, told me I was 
a crazy old man, didn't know what I was talking about, etc. I shut up and 
went into search mode. Finally found a complete system in a guys garage in 
Reno, about to go to the landfill. Got the whole thing here, receiver, power 
supply-converter and indicator with original harness. It's the early model, 
with the little airplane on the tube face that you turn and put the nose on 
a pip on a circle on the scope face to indicate bearing to the station. More 
ironic is the little plane is most like a Lear jet he built later. Did Bill 
Lear see the Learjet in his mind in 1946? One has to wonder.
Go to my antique aircraft radio website, link below, go to Lear aND HAVE A 
LOOK.
Thanx
Lloyd  KK7IZ
kk7iz at cox.net

Lloyd Godsey  KK7IZ
1315 N. udall Circle
Mesa, Az  85203
480-620-7145 (cell)
Visit my  web site
www.lloydsdipsydumpster.com
And my NEW  web sites
www.antiqueradioarchives.com
www.antiqueaircraftradios.com
Collecting OLD civilian aircraft radios and literature
Particularly Lear. Got anything?
Some boatanchors got wings

----- Original Message ----- 
From: "w4okw" <w4okw at gmpexpress.net>
To: <boatanchors at mailman.qth.net>
Sent: Friday, June 17, 2005 4:24 PM
Subject: [Boatanchors] Re: Boatanchors Digest, Vol 17, Issue 20

> Message: 12
> Date: Fri, 17 Jun 2005 02:05:16 -0400
> From: "J. Forster" <jfor at quik.com>
> Subject: Re: [Boatanchors] Radio transmitter ranges
> To: Dan Arney <hankarn at pacbell.net>
> Cc: boatanchors at mailman.qth.net, Grant Youngman <nq5t at comcast.net>
> Message-ID: <42B2681B.11B8E468 at quik.com>
> Content-Type: text/plain; charset=us-ascii
>
> I would have thought you use those measurements to trim attitude and 
> engine
> settings, but use INS and/or GPS to figure out where you are and how fast 
> you
> are really going over the ground.
>
> -John
>
>
> Dan Arney wrote:
>
>> We do that in 707's and 747's by air blowing into the Pitot tube and
>> indicating in KPH until changeover at about 26 to 28,000 feet then to 
>> Mach.
>> Still comes speed over the surface of the earth.
>> Hank
>> KN6DI
>
> -------------------Tom sez---------------------------
>
> This has taken a bizarre twist!
>
> Mach number is the ratio of the speed of the aircraft to the speed of 
> sound in the gas ( air/atmosphere).
>
> KPH (as in kilometers) might be seen on European aircraft.  Knots per hour 
> would be a measure of acceleration and not normally seen in aircraft 
> instrumentation.
>
> Most large/modern aircraft airspeed indicators are calibrated in Knots. 
> The odd J-3 or Cessna will show MPH.  Some light aircraft show both - so 
> take yer choice!
>
> Quite correct, the INS, GPS or the good old whiz wheel will tell you how 
> fast and where you are going!
>
> The only time speed over the earth would be equal to the speed indicated 
> by the pitot stat system is when IAS=TAS and there is no wind.  Very 
> unusual conditions indeed.  I suppose a standard day at zero feet pressure 
> altitude would do it if you could find a no wind situation.
>
> Someone made a comment the other day after having his first ride in a 
> "glass" cockpit ( an E-6 /B707 BTW) that pilots aren't pilots anymore, 
> they are system managers!
> Ya need to get up in a Cub to do real visual nav and "stick and rudder" 
> flying. (-:
>
> 73 de Tom/W4OKW
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> ** List Administrator - Duane Fischer, W8DBF/W9WZE **   ** For Assistance: 
> dfischer at usol.com **         $$ For vintage radio info, see the HCI web 
> site $$      http://www.w9wze.org
> 

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