LTD meaning in Space Science ?

Answer:

What is Lift-to-drag mean?

In aerodynamics, the lift-to-drag ratio (or L/D ratio) is the amount of lift generated by a wing or vehicle, divided by the aerodynamic drag it creates by moving through air. A greater or more favorable L/D ratio is typically one of the major goals of aircraft design; since a particular aircraft's required lift is set by its weight, delivering that lift with lower drag results directly in better fuel economy in aircraft, climb performance, and glide ratio.

The term is calculated for any particular airspeed by measuring the lift generated, then dividing by the drag at that speed. These vary with speed, so the results are typically plotted on a 2-dimensional graph. In almost all cases the graph forms a U-shape, due to the two main components of drag.

Lift-to-drag ratios can be determined by flight test, by calculation or by testing in a wind tunnel.

reference

Full Form	Category
Linear Transformer Driver	Academic & Science
Ghadames	Airport Code
Long Term Disability	Business
Loyalty Teamwork Dedication	Business
Limited	Business
Limited, Inc.	Business
Living The Dream	Community
Love, Tenderness, and Devotion	Community
Learning, Training, and Developing	Community
Leadership Team Development	Community
Little Technical Difficulties	Computing
Live Test Demonstration	Computing
Local Test Desk	Computing
Local Telecommunications Division	Computing
Long Tall Dexter	General
Little Tasty Drinks	General
Lying Texans Department	General
Love Togetherness Devotion	General
Love That Dog	General
Long Totally Distinguished	General
Likes The Dictators	General
Lincon Type Design	General
Lincold Thunderbird Division	General
Love Togetherness And Devotion	General
Lincoln Thunderbird Division	General
Lane Transit District	General
Livin the Dream	General
Lifetime to date	General
Lock the Door	General
Low Temperature Differential	General
Let Them Die	General
Limited Term of Duty	General
Load To Delivery	General
Long Travel Dampened	General
Land Transport Department	General
Lady Truck Drivers	General
Long Term Debt	General
Lousy Transportation, Dammit!	General
Little Tin Dream	General
Last Try from Detroit	General
Long, Thin Dumpster	General
Long Time Driving	General
Lincoln Type Design	General
Laminated Top Drop	Governmental
LATHIDAD	Indian Railway Station
Life To Date	Measurement Unit
Long Term Depression	Medical
Lot To Do	Messaging
Laser Target Designator	Military and Defence
Line Throwing Device	Military and Defence
Lift-to-drag	Space Science
Long Term Derivative	Stock Exchange
Last Trading Day	Stock Exchange
Ghadames Airport	Transport & Travel