The Ultra Marathon Cycling Association maintains a list of tandem trancontinental cycling records. Five of those records were set on Tango tandems.

• Lon Haldeman & Susan Notorangelo
  22 Apr 86
  Mixed Tandem
  Huntington Beach, CA - Virginia Beach
  09:20:07 / 12.16mph average
• Lon Haldeman & Pete Penseyres
  16 May 87
  Men Tandem
  Huntington Beach, CA - Atlantic City, NJ
  07:14:55 / 15.97mph average
• Cherie Moore & Debbie Rocker
  11 May 86
  Women Tandem
  Huntington Beach, CA - Atlantic City, NJ
  12:07:43 / 10.55mph average
• Bob Breedlove & Roger Charleville
  14 Aug 90 RAAM Men Tandem
  Irving, CA - Savannah, GA
  08:10:40 / 14.46mph average
• Bob Breedlove & Lon Haldeman
  01 Aug 92 RAAM; Men Tandem
  Irving, CA - Savannah, GA
  08:08:08 / 14.55mph average
   

https://ultracyc.ipower.com/records/tandemrecords.html