Original sentence: Furthermore, £50,000 is required each month after that in order for the return to flight project to continue.However, the Vulcan to the Sky Trust is £150,000 short of the funds required to resume the test flights at the beginning of March.Partly due to the current economic situation, companies have been reluctant to come forward and sponsor the project
Edited sentence: Furthermore, £50,000 is required each month in order for the return to flight project to remain viable.However, the Vulcan to the Sky Trust are now in desperate need of £150,000 to resume the test flights at the beginning of March.Partly due to the current economic situation, companies have been reluctant to come forward and sponsor the project, and this is severely endangering the future of Vulcan flight operations