set intial thrust: Unresonable acceleration in cruise segment

set intial thrust: Unresonable acceleration in cruise segment

Bug Report

Description

Required thrust in first cruise segment can't be provided by the engine. Bug in set_initial_thrust. Thrust requirement too high due to unreasonable acceleration.

Steps to Reproduce

1. Clean sheet design using AirTiMe configuration and engine

Expected Behavior

Acceleration should be zero as speed and altitude are constant.