AERO 321 Planes

Republic F105 Thunderchief

Lockheed Martin F22 Raptor

Originally designed without horizontal tails

Chengdu J20 copies this plane

Bell P39 Airacobra

Engine in the center of the airframe

Neutrally stable

Me 509 and Yokosuka R21Y tried to copy this aircraft

Grumman X29A

Forward swept wing with canards

Statically unstable

Canards jettison off during ejection

Lockheed Martin SR71 Blackbird

Low observable

Vertical tails are tilted for LO

Northrop YB49 Flying Wing

Volumetrically inefficient

Had drag rudders because it needed extra vertical tails

Northrop SM62 Snark

Cruise missile

No horizontal tail

North American XB70 Valkyrie

Folding wing tips

Mach 3.2 bomber with same range as SR71

Canards

Powered by 6 afterburning gas turbines

Boeing B52 Stratofortress

Large wing incidence angle

Cruises at negative angle of attack

Convair B36D Peacemaker

6 turning (propellers) 4 burning (jet engines)

Built in Fort Worth

Blohm & Voss BV 141 B-0

Asymmetric aircraft

Cannot assume products of inertia are 0

De Havilland Mosquito

No reason

Messerscmidt Bf 109

Hard to take off and land due to large gyroscopic moment

Junkers Ju 52

Engines toe out, introduces hx and hy

Bell X1

First plane to fly supersonic and level

All-moving horizontal tail

Shaped after a 50 caliber bullet

Lockheed Constellation

Cambered fuselage

Boeing 707

Pilot controls the trim tab, not the entire elevator

Northrop AGM 137 TSSAM

Vertical wing on underside

Cm0 was wrong because the wind tunnel results were adjusted without telling the S&C team

Northrop F20 Tigershark

Thrust line produces a moment on the center of gravity

Lockheed F104 Starfighter

Anhedral wings (gamma < 0) needed because the aircraft was too stable

British Aerospace AV-8 Harrier

VTOL

Anhedral wings

High wing on fuselage

High wing sweep

Last two made the aircraft too laterally stable so the wings were made anhedral

** Tailoring was done to achieve the desired dihedral effect **

North American YF107A Ultra Sabre

Vertical tail is very close in size to the wings

Cl beta v is very large

McDonnell Douglas F4 Phantom II

Dihedral wings

Anhedral horizontal tails

English Electric Lighting

Zero sweep angle ailerons

Very high sweep angle wings

Vought F8 Crusader

Inboard ailerons because wing tips folded up for carrier storage (ailerons needed to be large to create larger rolling moment)

Grumman F11F Tiger

Used only spoilers for roll control (no ailerons)

No adverse yaw

North American F100 Super Sabre

Highly coupled

Used rudder for roll control at high AOA

Northrop A-9 A

Flight system allowed for wing-level turning

Cy delta a (generates side force when rolling)

North American P51 Mustang

Early versions suffered from yaw instability

Later models fixed this by incorporating more area aft of the center of gravity

McDonnel XF-85 Goblin

Small moment arm- needs many fins for weathercock stability

Vought XF8U-3

Added control surfaces below the vertical tail which were coupled with the landing gear to increase weathercock stability

General Dynamics F-16 CJ Fighting Falcon

Added fins aft of the center of gravity to counteract inlet stability effects

McDonnel Douglas F-15 Eagle

Small rudder area- only good for low angle of attack maneuvers (T.F.R)- Cn delta r is small

Douglas F4D Skyray

Differential rudder- one controlled by the pilot, one controlled by damper

North American A-5A Vigilante

All moving vertical tail

Convair B58 Hustler

Low speed unstable due to delta wing

Auto throttles