WREN44K 
Thrust  :  45N / 4.5kg / 10lbs
Weight  :  600g / 21oz
Overall Size  :  215mm x 75mm (8.5″ x 3″)
Ancillaries weight (inc battery)  :  340g / 12oz
Max RPM  :  195,000
Idle RPM  :  55,000
Idle Thrust  :  1.5N / 0.15kg / 0.3lbs
Fuel Consumption @ max thrust  :  176ml per minute / 5.8oz per minute

WREN80K Jubilee 
Thrust  :  82N / 8.0kg / 18.0lbs
Weight  :  995g / 35oz
Overall size  :  250mm x 89mm / 9.8″ x 3.5″
Ancillaries weight (without battery)  :  170g / 6oz
Max RPM  :  160,000
Idle RPM  :  50,000
Idle Thrust  :  0.3kg / 0.66lbs
Fuel Consumption @ max thrust  :  320ml per minute / 9.8oz per minute

WREN100 
Thrust  :  100N / 10kg / 22lbs
Weight  :  990g / 34.5oz
Overall Size  :  250mm x 89mm / 9.8″ x 3.5″
Ancillaries weight (inc battery)  :  340g / 12oz
Max RPM  :  160,000
Idle RPM  :  45,000
Idle Thrust  :  0.35kg / 0.75lbs
Fuel Consumption @ max thrust  :  350ml per minute / 12.3oz per minute

WREN180
Thrust  :  180N/18kg/40lbs
Weight  :  1.69kg/3.7lb
Overall Size  :  111mm x 268mm / 4.4″ x 10.5%
Ancillaries Weight (ex battery)  :  140g/4.0oz
Max RPM  :  120,000
Idle RPM  :  32,000
Idle Thrust  :  0.60kg/1lb
Fuel Consumption (@ max thrust)  :  645ml per min / 22.7oz per min

WREN44 Turboprop　
Max Power Output  :  7.5HP / 5.6Kw @ 195,000 rpm
Weight  :  1750gms / 3Lbs 13oz
Overall size centre section  :  326mm x 86mm / 12.8″ x 3.4″
Mounting  :  Hole dia 85mm / 3.4″, 6 x M3 screws
Ancillaries weight (inc battery)  :  340g / 12oz
Propeller rpm range  :  1100 to 9000 rpm
Propeller size range  :  17 x 12 ~ 28 x 10 (2 or 3 blade)
Recommended Setup  :  6400 rpm on Metz 22×13 3-blade prop
Fuel Consumption @ max power  :  176ml per minute / 5.8oz per minute