Lapse Rate (λ) Calculator Post author:chandansingh Post published:October 31, 2020 Post category:Aerospace Calculator / Airplane Performance Calculator / Flight Mechanics Calculator Lapse Rate (λ) is defined as the Rate of change of Temperature with respect to Altitude. NOTE:- For Troposphere, the Lapse Rate is Negative, According to ISA, λ=-o.oo65 k/m For Stratosphere, the Lapse Rate is Zero. Chandan Singh You Might Also Like Area of Parallelogram September 17, 2021 Drag Acceleration of Space Shuttle April 5, 2021 Mach Number Calculator October 19, 2020