Clearing the runway

The Chicago Glider Club has an active membership of about 80 pilots involved in all aspects of the sport, from instruction through to participation in local, Regional and National soaring contests.

Founded in 1953, we own and manage all of our facilities: our grass runway, hangars and clubhouse were all constructed - and are now maintained - by dedicated and highly proficient members who take pride in the club.

We own a fleet of high quality sailplanes and towplanes that provide economical soaring to club members; many members also own their own sailplanes and base them at the CGC gliderport.

CLGC Soaring Weather and Data Analysis

Presentation to CLGC by Greg Chisholm, December 2000 (pdf 3.3MB)


Chicago Soaring Forecasts courtesy of CGC and NOAA-FSL

The following SkewT/LogP diagrams provide both actual and forecast soundings. The forecast soundings are derived from the actual soundings via computer simulations:

  1. TI's and SkewT/LogP diagrams: Locate the dry adiabat line for the daily forcast high (CGC is approximately 1000mb's MSL). The dry adiabat angles from lower right to upper left - colored blue, numbered in degrees F.
  2. Follow the dry adiabat up to the intersection with the sounding. The sounding is the squiggly line depicting temperature as a function of altitude - colored red. This intersection is the top of the thermal for today, given no complications, like clamp.
  3. At any altitude, the TI is the difference between the sounding temperature for that altitude and the dry adiabat temperature for that altitude.
  4. One rule of thumb is that a glider could expect to top out at TI=-3 (though many have experienced greater heights).


Advanced Digital Data Service (ADDS)

The National Weather Service's ADDS site contains a large amount of general aviation weather data. These links provide you with direct access to a number of these pages.


Dr. Jack's Blipmaps

Direct Link to Dr Jack's BLIPMAP images - Blipmap and Blipspot forecasts. This page contains 4 Blipmap images - Thermal Updraft Strength, Critical Height, Wind Speed, and Wind Direction. It also contains links to the Blipspot forecasts for the CGC location. Note: You must be a Blipmap subscriber to view all 4 Blipmap images.


Forecast by NOAA's Forcast Systems Laboratory. This link provides 5 plots from the current time. I usually select the region around the drybulb from ground (~1000mb) to 10,000 feet (e.g., place cursor to right of drybulb/1000mb intersection, depress left mouse button, drag up and to the left to above 10,000 ft line). Expected cloudbases are indicated by the following: pressure (altitude), wetbulb temp, drybulb temp, and wind direction/speed.


Additional Helpful Stuff on the Web


General Purpose Sites and Educational Information

The following is a collection of sources for the above graphics as well as some selected information sources on reading these graphics.


Created by Greg Chisholm December 1998
Modified by Rich Carlson July 2004

CGC 500K Club

The following members have made a cross-country soaring flight of at least 500 km from the Chicago Glider Club's normal field of operation:
Name Distance Date Glider
Robert F. Hupe 330 Miles - Free Distance Aug 20, 1961 Ka-6 
Harold Jensen 435 Miles - Free Distance April 14, 1962 LO-150
Richard W. Hawker 344 Miles - Free Distance May 24, 1962 Ka-6 CR 
Dr. Hartmut Schmidt 314 Miles - Free Distance May 18, 1963 Ka-6 CR
Dale S. May 367 Miles - Free Distance May 22, 1963 Fauvette 905
Neal H. Ridenour 360 Miles - Free Distance April 14, 1964 Prue Super Standard
John C. Slack 355 Miles - Free Distance April 14, 1964 LO-150
Michael S. Greenwald 337 Miles - Free Distance July 4, 1967 Ka-6 BR
Ward Hubbard 322 Miles - Free Distance April 18, 1974 Libelle
E. G. Hammond 325 Miles - Incomplete Triangle June 27, 1974 HP-11
Robet Spitz 325 Miles - Incomplete Triangle July 17, 1976 ASW-19
Lance Flynn 320 Miles - Triangle May 4, 1980 Standard Cirrus
Ronald Ridenour 320 Miles - Triangle May 4, 1980 Mini-Nimbus
Robert Macys 316 Miles - Triangle May 25, 1985 Mini-Nimbus
Gernot Neubauer 318 Miles - Free Distance June 27, 1987 ASW-20
Gene Hammond 324 Miles - Triangle June 23, 2001 ASW-20
Bob Macys 315 Miles - Triangle June 23, 2001 Ventus 2B
Don Kroesch 329 Miles - Triangle June 23, 2001 Genesis 2
John Cochrane 338 Miles - Multiple Turn Points June 28, 2005 ASW-27
John Cochrane 364 Miles - Multiple Turn Points June 30, 2005 ASW-27

Boom-a-Rang Contest

The Boom-A-Rang contest is a task set in the shape of a boomerang. It starts at the club field and goes to TP1, back to the club field, then on to TP2, with a finish at the club field (hopefully). TP1 and TP2 are defined on the contest day in relation to the weather. This task is held in conjunction with the club's annual Pig Roast. Since this event is held in late September to early October, the task distance is usually rather short (35-50 miles). The following members have won the annual Boom-A-Rang contest. The speed listed is a handicap speed using the SSA Handicap list.
Year Name Speed
1973 Ward Hubbard Unknown
1974 Neal Ridenour Unknown
1975 Burt Meyer Unknown
1976 Robert Spitz 60.3 MPH
1977 No Contest
1978 Burt Meyer 49.3 MPH
1979 Duane Eisenbeiss 33.7 MPH
1980 E. G. Hammond 50.9 MPH 
1981 Robert Spitz 35.2 MPH 
1982 E. G. Hammond 49.8 MPH 
1983 Ronald Ridenour 53.1 MPH 
1984 No Contest
1985 No Contest
1986 Robert Macys 35.9 MPH 
1987 Neal Ridenour 45.0 MPH 
1988 No Contest
1989 Burt Meyer Unknown
1990 E. G. Hammond 48.7 MPH 
1991 Ronald Ridenour 45.2 MPH 
1992 Ronald Ridenour 48.7 MPH 
1993 Duane Eisenbeiss 45.1 MPH 
1994 No Contest
1995 Duane Eisenbeiss 38.6 MPH 
1996 John Cochrane 41.0 MPH 
1997 Duane Eisenbeiss 48.0 MPH 
1998 Don Kroesch 65.6 MPH 
1999 Nigel Cripps 45.7 MPH 
2000 Mike Shakman 62.8 MPH 
2001 Mike Shakman 50.2 MPH 
2002 John Cochrane 42.1 MPH 
2003 Jeff Russell 55.2 MPH 
2004 Tim Gossfeld 54.7 MPH 
2005 Ron Ridenour 37.4 MPH 
2006 Bob Spitz 35.5 MPH 
2007 Roderic Read 57.0 MPH 
2008 Ron Ridenour 56.0 MPH
2009 Roderic Read 63.4 MPH
2010 Kevin Hobbs 57.7 MPH 

The Chicago Glider Club was formed in 1953, as evidenced by this announcement that our local historian Simine Short found in the National Soaring Museum in 1998.

As described in the announcement (see text below the illustration), CGC was formed by a small group of members from the Chicagoland Glider Council, which had already been in existence since 1937.



The Chicago Glider Club is not to be confused with the Chicagoland Glider Council. It is composed of members of the Council who wish to actively participate in the flying of gliders Those who are now activating the organization are as follows: 

	Mr. and Mrs. James Ducy			Julian Hall
	Cyril Rogers				Millard Wells
	Bob Mouroski				Allen Schultz
	Joe Trefney				George Ott
	Richard Hawker				Sue Yager
	Pat Heraeg				Bernie Mossberg

The Club has been formed around a Schweitzer TG3 owned by Bob Mouroski and Joe Trefney. The Chicagoland Glider Council and the Chicago Glider Club both wish to extend their gratitude to both of these men for making this ship available to them. 

The purpose of this Club is to encourage the art of soaring flight in the Chicagoland area. The Council is most pleased with the interest and enthusiasm with which this new venture has been met. If this Club is as successful as it promises to be, other gliders will undoubtedly be made available under this plan for all those who wish to fly them. 




Chicago Glider Club is located on Bell Road in Minooka, Illinois, about one mile north of US Highway 6. This is about 2 miles SE of Minooka, 9 miles E of Morris, and 8 miles SW of Joliet (about 2 miles SW of the intersection of I-55 and I-80). From Bell Road, turn East onto Airport Road; this road runs immediately along side the grass runway, so please drive with caution and look out for gliders and tow planes.

The clubhouse phone is 815-467-9861.

Use the interactive Google map below to see our location.

The club owns its own grass runway, two large hangers, a clubhouse, and a large grass area for trailer tie-down and sailplane assembly. The clubhouse has a large general area, two rest rooms with showers, and a kitchen.

Construction of the runway, clubhouse, and hangers was accomplished by volunteer workers from the membership. The only professional help used was to pour the concrete for the large hanger and clubhouse floors.

CGC Runway 
The runway is a grass strip about 300 feet wide and about 1800 feet long with an east-west orientation. On the north side of the property near the east end is the fully equipped clubhouse and 2 hangers.  CGC clubhouse
Adjacent to the east side of the hangers is a large grass area used for trailer tie-down and sailplane assembly.  CGC tie down
The inside of the clubhouse has a large general area, two restrooms with showers, and a fully equipped kitchen.  CGC inside clubhouse