title: Ozone Proton
text: # Ozone Proton
  
  The Ozone Proton is a French single-place paraglider that was designed by hang gliding and paragliding world champion pilot Robbie Whittall and produced by Ozone Gliders of Le Bar-sur-Loup. It is no longer in production.
  
  ## Design and development
  
  The Proton was designed as a competition glider. The initial version was later replaced by the Proton GT in production. The GT incorporated a partially closed leading edge, with 20 partially closed and 10 cells fully closed. The models are each named for their relative size.
  
  ## Operational history
  
  Reviewer Noel Bertrand described the Ozone series of gliders in a 2003 review as, "wings that are both pleasant to fly and high performance in their respective categories".
  
  ## Variants
  
  ### Proton
  
  **Proton S**
  
  
      Small-sized model for lighter pilots. Its 11.49 m (37.7 ft) span wing has a wing area of 23.09 $m^2$ (248.5 sq ft), 61 cells and the aspect ratio is 5.72:1. The take-off weight range is 60 to 85 kg (132 to 187 lb). The glider model is DHV 2-3 and AFNOR certified.
  
  **Proton M**
  
  
      Mid-sized model for medium-weight pilots. Its 12.09 m (39.7 ft) span wing has a wing area of 25.58 $m^2$ (275.3 sq ft), 61 cells and the aspect ratio is 5.72:1. The take-off weight range is 80 to 105 kg (176 to 231 lb). The glider model is DHV 2-3 and AFNOR certified.
  
  **Proton L**
  
  
      Large-sized model for heavier pilots. Its 12.82 m (42.1 ft) span wing has a wing area of 28.7 $m^2$ (309 sq ft), 61 cells and the aspect ratio is 5.72:1. The take-off weight range is 95 to 125 kg (209 to 276 lb). The glider model is DHV 2-3 and AFNOR certified.
  
  ### Proton GT
  
  **Proton GT S**
  
  
      Small-sized model for lighter pilots. Its 12.09 m (39.7 ft) span wing has a wing area of 25.2 $m^2$ (271 sq ft), 61 cells and the aspect ratio is 5.85:1. The pilot weight range is 60 to 85 kg (132 to 187 lb). The glider model is DHV 2-3 and AFNOR certified.
  
  **Proton GT M**
  
  
      Mid-sized model for medium-weight pilots. Its 12.53 m (41.1 ft) span wing has a wing area of 26.86 $m^2$ (289.1 sq ft), 61 cells and the aspect ratio is 5.85:1. The pilot weight range is 80 to 100 kg (176 to 220 lb). The glider model is DHV 2-3 and AFNOR certified.
  
  **Proton GT L**
  
  
      Large-sized model for heavier pilots. Its 12.92 m (42.4 ft) span wing has a wing area of 28.5 $m^2$ (307 sq ft), 61 cells and the aspect ratio is 5.85:1. The pilot weight range is 95 to 115 kg (209 to 254 lb). The glider model is DHV 2-3 and AFNOR certified.
  
  **Proton GT XL**
  
  
      Extra large-sized model for even heavier pilots. Its 13.26 m (43.5 ft) span wing has a wing area of 30.0 $m^2$ (323 sq ft), 61 cells and the aspect ratio is 5.85:1. The pilot weight range is 110 to 135 kg (243 to 298 lb). The glider model is DHV 2-3 certified.
  
  ## Specifications (Proton GT M)
  
  Data from Bertrand
  
  General characteristics
  
  * Crew: one
  * Wingspan: 12.53 m (41 ft 1 in)
  * Wing area: 26.86 $m^2$ (289.1 sq ft)
  * Aspect ratio: 5.85:1
  