If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Richard Ball
|
#2
|
|||
|
|||
Richard Ball
On 11/28/2011 1:18 PM, Frank Whiteley wrote:
http://www.dailycamera.com/obits/ci_19412735 I enjoyed talking to him at conventions and reading his articles and I used his varios for almost 20 years till 1994. No more new Ball varios then, so I had to find something else for the new glider. -- Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me) |
#3
|
|||
|
|||
Richard Ball
On Mon, 28 Nov 2011 17:06:49 -0800, Eric Greenwell
wrote: On 11/28/2011 1:18 PM, Frank Whiteley wrote: http://www.dailycamera.com/obits/ci_19412735 I enjoyed talking to him at conventions and reading his articles and I used his varios for almost 20 years till 1994. No more new Ball varios then, so I had to find something else for the new glider. Just as some background for younger pilots for whom the name of Richard Ball may not mean much. Richard Ball was the inventor and manufacturer of the Ball Variometer. In the late 1960's, and throughout the 70's and early 80's, the Ball Vario was one of the best electrical varios available. Richard's concept was very innovative (US Patent 3,451,265). At this time, most of the then newly introduced electric variometers used tiny heated thermisters to measure the airflow in and out of a standard vario flask. Richard's very innovative idea was to use a thin diaphragm with a magnetic button attached. Differential pressure generated in the small internal capacity resulted in the diaphragm deflecting, which was sensed with inductive coils on either side of the diaphragm. The advantage was fast response with the very light diaphragm, an small internal capacity (no external flask), and good calibration over altitude, which was something the thermister varios lacked. Later models included a self contained tunable total energy capability. A truly innovative engineer. Our condolances to the family. Bob |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Richard (Dick) Schreder | Wayne Paul | Soaring | 0 | February 5th 08 04:57 AM |
a3b_skywarrior_142240_vah4_cva31-bon-homme-richard.jpg | Troy24 | Aviation Photos | 0 | July 12th 07 12:41 AM |
Thanks Richard :) | Mal | Soaring | 0 | November 9th 05 01:15 AM |
Passing of Richard Miller | [email protected] | Soaring | 5 | April 5th 05 01:54 AM |
Richard Riley | BRUCE FRANK | Home Built | 0 | August 1st 03 02:58 AM |