Usually, the object carries special instruments to measure the forces
produced by the air on the object.
Engineers also study how the air
moves around the object by injecting smoke or dye into the tunnel and
photographing its motion around the object. Improving the flow of air
around an object can increase its lift and decrease its drag.
It saves a lot of time and money required for the testing and analysis of designs, and prototypes.
I leave you guys with this clipping from a wind tunnel testing facility at NASA:
The Flappy Plane : This phenomenon is known as Flutter in Aerodynamics. It is an unstable oscillation that can lead to destruction
German “Zeppelin-Staaken R.VI”, biplane quadrimotor bomber, 1917. This giant airplane could drop about 2 tons of explosives in a single flight, and had a range of about 800km. Only 18 of them were produced between 1917 and 1918. P.S.: Note the triplane on the left corner for a size reference.
Revealed: US Air Force Is Planning to Build a Super A-10 Warthog
The Air Force is beginning to work on how fast, lethal, durable and
capable a new “A-10”-like aircraft would need to be in order to provide
U.S. military ground troops with effective close-air support for decades
Senior service officials are now exploring “draft requirements”
concepts – and evaluating the kind of avionics, engineering, weapons,
armor and technical redundancy the aircraft would need, Air Force
officials told Scout Warrior.
Many of the core technical attributes and combat advantages of the
A-10 will be preserved and expanded upon with the new effort, officials
The performance of the A-10 Warthog in the ongoing bombing campaign
against ISIS, coupled with the Air Forces’ subsequent decision to delay
the aircraft’s planned retirement – has led the service to begin the
process of developing a new, longer-term A-10 type platform.
Following an announcement earlier this year from Pentagon leaders
that the A-10 will not begin retiring but rather will serve until at
least 2022, Air Force and DoD officials are now hoping to keep a
close-air-support aircraft for many years beyond the previously
Given the emerging global threat environment, it would make sense
that the Air Force would seek to preserve an aircraft such as the A-10.
While the aircraft has been extremely successful attacking ISIS targets
such as fuel convoys and other assets, the A-10 is also the kind of
plane that can carry and deliver a wide-ranging arsenal of bombs to
include larger laser-guided and precision weapons.
This kind of firepower, coupled with its 30mm cannon, titantium armor
plates and built-in redundancy for close-air-support, makes the A-10 a
valuable platform for potential larger-scale mechanized, force-on-force
type warfare as well. The A-10 has a unique and valuable niche role to
perform in the widest possible range of combat scenarios to include
counterinsurgency, supporting troops on the ground in close proximity
and bringing firepower, protection and infantry support to a large-scale
Air Force officials have told Scout Warrior that the current approach
involves a three-pronged effort; the Air Force may consider simply
upgrading the existing fleet of A-10s in a substantial way in order to
extend its service life, acquire an off-the-shelf existing aircraft or
develop a new close air support platform through a developmental effort.
“Close-up, in-flight view of a VB-16 Douglas SBD-5 Dauntless stenciled with the names of LT(JG) George T. Glacken (pilot) and his gunner Leo Boulanger, near New Guinea, early April 1944. LT Glacken was later awarded the Navy Cross for his actions on 20 June 1944.”