title: Ozone Mac Daddy Bi
text: # Ozone Mac Daddy Bi
  
  The Ozone Mac Daddy Bi (or McDaddy) is a French two-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 aircraft was designed as a tandem glider for flight training and as such was referred to as the Mac Daddy Bi, indicating "bi-place" or two seater. It replaced the Ozone Cosmic Rider in the production line.
  
  The models are each named for their approximate wing area in square metres.
  
  ## 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
  
  ### Mac Daddy Bi 41
  
      Small-sized model for lighter pilots. It has a wing area of 41.10 $m^2$ (442.4 sq ft), 42 cells and the aspect ratio is 4.90:1. The crew weight range is 130 to 200 kg (287 to 441 lb). The glider model is DHV 1-2 certified.
  
  ### Mac Daddy Bi 44
  
      Large-sized model for heavier pilots. It has a wing area of 43.80 $m^2$ (471.5 sq ft), 42 cells and the aspect ratio is 4.90:1. The crew weight range is 140 to 230 kg (309 to 507 lb). The glider model is DHV 1-2 certified.
  
  ## Specifications (Mac Daddy Bi 44)
  
  Data from Bertrand
  
  General characteristics
  
  * Crew: one
  * Capacity: one passenger
  * Wing area: 43.80 $m^2$ (471.5 sq ft)
  * Aspect ratio: 4.90:1
  