INTRODUCTION TO FLIGHT (REVIEW, AEROSPACE DIMENSIONS, MODULE 1)
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1 INTRODUCTION TO FLIGHT (REVIEW, AEROSPACE DIMENSIONS, MODULE 1) CAPTAIN. JERRY PAINTER AEROSPACE EDUCATION OFFICER COMPOSITE SQUADRON 316, (CIVIL AIR PATROL) CASA GRANDE, ARIZONA
2 IMPORTANT TERMS-THE LANGUAGE OF AVIATION AERO-PARTAINING TO AIR AERODYNAMICS-FORCES OF AIR IN MOTION AERONAUTICS-SCIENCE OF FLIGHT IN THE AEROSPACE-COMBO: AERONAUTICS AND SPACE ATMOSPHERE AGL-ABOVE GROUND LEVEL AIRFOIL-FORMED OBJECT TO PRODUCE LIFT AIR-ATMOS. MIX; 79% NITROGEN, 19% OXYGEN AND 2% OTHER GASES AIRFOIL-FORMED OBJECT TO PRODUCE LIFT ALTITUDE-HIEGHT ABOVE SEA/GROUND LEVEL CAMBER-CURVED PART OF AIRFOIL DRAG-FORCE SLOWING AN AIRCRAFT LEADING EDGE-FRONT PART OF AN AIRFOIL
3 MORE AVIATION TERMS LIFT-UPWARD AND GRAVITY DEFEATING FORCE STATIC-WITHOUT MOTION, STANDING STILL RELATIVE WIND-AIR FLOW IN OPPOSITE DIRECTION OF FLIGHT SUPERSONIC-FASTER THAN THE SPEED OF SOUND SUBSONIC-LESS THAN SPEED OF SOUND NOTE: SPEED OF SOUND IS ABOUT 768 MPH OR 1125FT/SEC THRUST-FORCE MOVING AN AIRCRAFT AHEAD WIND-AIR IN MOTION TRAILING EDGE-BACK PART OF AN AIRFOIL
4 EARLIEST KNOWN FLIGHTS 1299 A.D., MARCO POLO REPORTS CHINESE SAILORS ATTACHED TO KITES BEING USED AS MILITARY OBSERVERS 1783, NOVEMBER 01: JOSEPH AND ETIENNE MONTGOLFIER PILOT THEMSELVES AND TWO OTHERS ON A 25 MINUTE FLIGHT OVER PARIS IN A HOT AIR BALLOON, COMPLETING MANS FIRST OFFICIAL FLIGHT ABOVE THE EARTH.
5 Forces Acting on An Airplane There are four forces acting on the airplane all the time during airplane is flying. The four forces are: (1) Lift (ARTIFICIAL FORCE, REQUIRES WING, TO CREATE BERNOULI S LAW) (2) Thrust (ARTIFICIAL FORCE, PROPELLER OR JET-THRUST CREATED) (3) Gravity force or Weight [PULLED DOWN] (NATURAL FORCE) (4) Drag [SWIMMING POOL RESISTANCE] (NATURAL FORCE) Lift and Drag are considered aerodynamics forces because they exist due to the movement of the Airplane through the Air.
6 AXIS OF ROTATION
7 A LITTLE REVIEW!!! 1. BERNOULLI S PRINCIPLE STATES THAT THE CURVED WING SURFACE (TOP) WILL CAUSE AIRFLOW TO SLOW WHILE AIR UNDER BOTTOM SURFACE WILL SPEED UP: RESULT WILL BE THE WING WILL LIFT!!!! 2. NEWTON S THREE LAWS: (1.) FOR EVERY ACTION, AN EQUAL AND OPPOSITE REACTION, (2.) A BODY AT REST WILL REMAIN AT REST, AND FINALLY, (3) FORCE ON A BODY ACCELERATES THE BODY, ACCELERATION DIRECTLY PROPORTIONAL TO THE FORCE. 3. THE PROPELLER: WHAT IS THE FASTEST MOVING SECTION (PART)? A. THE TIP B. THE HUB C. HALF WAY BETWEEN HUB AND TIP D. THE TURBINE
8 FLYING THE LIFTING POWER OF RISING AIR CHAPTER 2
9 SAILPLANE VS GLIDER SAIL PLANES RIDE THE THERMALS FOR HOURS, THEN EVENTUALLY GLIDE BACK TO EARTH. A GLIDER, ON THE OTHER HAND, IS TOWED ALOFT THEN RELEASED AT A PRE-SET ALTITUDE AND GLIDES BACK TO EARTH. MUCH HEAVIER THAN THE SAIL PLANE AND BASICALLY CANNOT GAIN ALTITUDE ON ITS OWN.
10 GLIDER TERMS SPAN=DISTANCE WING-TIP TO WING-TIP. CONVECTION=FLUID MOTIONS BETWEEN REGIONS OF UNEVEN HEATING. GLIDE RATIO=DISTANCE AN AIRCRAFT WILL GLIDE FROM A GIVEN HEIGHT. 20 TO 1 RATIO MEANS IF THE CRAFT IS ONE MILE UP, IT SHOULD BE ABLE TO GLIDE 20 MILES BEFORE HAVING TO LAND. LAPSE RATE= AVERAGE TEMPERATURE FALL AS ONE GOES HIGHER IN THE ATMOSPHERE. THE NORM IS 3.5 DEGREES F./2.O C DEGREES PER 1000 FEET OF RISE. SOARING=STAYING ALOFT ONLY ON THE ATMOSPHERIC ENERGY (UNPOWERED).
11 MORE GLIDER TERMS THERMAL=AN UPWARD MOVING COLUMN. GLIDERS RIDE THESE THERMALS. WAVE=AIR CROSSING MOUNTAINS CAN CAUSE WAVES ON THE DOWNWIND SIDE AND GLIDERS USE THESE WAVES TO GAIN ALTITUDE RESULTING IN A LONGER FLIGHT. TOW PLANE= NORMALLY A S.E.L AIRCRAFT (POWERED) USED TO TOW GLIDERS ALOFT. STABILITY=ATMOSPHERES RESISTANCE TO VERTICAL MOTIONS. ALTITUDE=HEIGHT ABOVE A REFERENCE POINT. IN AVIATION, THERE IS MSL OR MEAN SEA LEVEL (HEIGHT ABOVE AVERAGE SEA LEVEL) AND AGL, ABOVE GROUND LEVEL.
12 A LITTLE REVIEW!! DISTANCE A GLIDER CAN TRAVEL FROM A GIVEN ALTITUDE IS KNOWN AS: 1. ASPECT RATIO 2. GLIDE RATIO 3. LAPSE RATE AIR CROSSING A MOUNTAIN MAY FORM WHAT ON THE DOWN-WIND SIDE: 1. WAVE 2. LAPSE RATE 3. CONVECTION RATIO AIR IN MOTION IS CALLED: 1. WAVE 2. THERMAL 3. WIND 4. TECHNICALLY, ALL ARE CORRECT WITH #3 MOST CORRECT!
13 CHAPTER 3: BALLOONS-CREATE THEIR OWN THERMALS
14 BALLOON TERMS BALLOON=USES LIGHTER-THAN-AIR GAS FOR LIFT, ONLY UP-DOWN CONTROL, NO NORIZONTAL CONTROL. BURNER=HEAT SOURCE TO FILL ENVELOPE WITH HOT AIR. CROWN=TOP OF THE BALLOON ENVELOPE. MONTGOLFIER=NAME OF FRENCH BROTHERS CREATING FIRST SUCCESSFUL MANNED HOT AIR BALLOON IN 1783 (ALSO THE FIRST EVER ACTUAL FLIGHT). PROPANE=LIGHTWEIGHT, LOW CARBON FUEL USED IN HOT AIR BALLOON BURNERS.
15 MORE BALLOON TERMS WICKER=FORM OF CONSTRUCTION USED ON BASKETS (GONDOLA). THERMISTER=TEMPERATURE SENSOR WITHIN THE ENVELOPE. PARACHUTE VALVE/PANEL=TOP OF ENVELOPE, ALLOWS FOR DEFLATION. BUOYANCY=ABILITY TO RISE/FLOAT ON WATER OR WITHIN THE ATMOSPHERE. GORE=ONE OF THE SEVERAL VERTICAL PANELS THAT COMPRISE THE ENVELOPE.
16 LIFTING CAPABILITY HYDROGEN FILLED BALLOON: 1,000 CUBIC FOOT BALLOON WILL LIFT ABOUT 60 POUNDS. EARLY ON HYDROGEN WAS USED IN DIRIGABLES BUT IT WAS FOUND TO BE TOO DANGEROUS. IN MOST CASES, HELIUM HAS REPLACED HYDROGEN AS HELIUM IS NON-FLAMMABLE. HOT-AIR-BALLOON LIFT: ONLY ABOUT POUNDS PER 1,000 CUBIC FEET (AT DEGREES C.) WEIGHT AT TAKE-OFF: MINIMUM CRAFT OF AROUND 600 POUNDS TOTAL AT LIFT-OFF. THIS MEANS SOMETHING LIKE 77,000 CUBIC FEET NEEDED TO LIFT THE 600 POUND BALLOON/BASKET/EQUIPMNT AND THE PILOT ALONG WITH THREE OTHERS (ABOUT 1300 POUNDS TOTAL). EXPLAINS WHY SOME BALLOONS ARE HUGE!!!!!
17 A LITTLE REVIEW!! 1. THERE IS NO HORIZONTAL DIRECTION CONTROL WITH HOT-AIR-BALLOONS, ONLY UP OR DOWN! 2. HOT AIR WILL LIFT ABOUT POUNDS PER 1,000 CUBIC FEET OF GAS WHILE HYDROGEN WILL LIFT ABOUT 60 POUNDS WITH THE SAME 1,000 C.F. 3. FOR RAPID DESCENT, A BALLOON PILOT WILL PULL DOWN ON THE PARACHUTE PULL CORD AND THIS ALLOWS THE HOT AIR TO ESCAPE.
18 CIVIL AIR PATROL SQUADRON 316, CASA GRANDE (ARIZONA WING) THIS CONCLUDES OUR REVIEW BASED ON MODULE 1, INTRODUCTION TO FLIGHT. THANK YOU FOR YOUR ATTENTION! CAPTAIN PAINTER
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