3/29/07 home work

What was the common with all off the rockets- they went high and fast, they launched after about two seconds, they were cool, they smelled bad

Why did some of the rockets and launchers fail- they motor was not properly hooked up, or the cords were messed up

YAW- Nose right and left

Pitch- Nose down and up

Roll- The whole plane right and left

DIHEDRAL- The V-Shape in the wings

STATIC- is a very constant and blan

DYNAMIC- Is active and changing

The bernoulli effect shiws the wind on the top going faster the the wind on the bottom. The top is low preassure, and the bottom is high preassure.

Question for homework

What does datum mean and what does the symbol look like

I can not find a picture but it looks like a hour glass, it means the last known position or were they might be.

What is occam`s Razor

F=M A, Whenever one can remove the impossible, What remains unlikely (leads to) The truth.

Rules of rockets

1. MATERIALS - I will use only light weight, non-metal parts for the nose, body, and fins of my rocket
2. MOTORS- I will use only certified, commercially -made model rocket motors, and will not tamper with theese motors or use them for any purposes except those reommended by the manufacturer
3. IGNITION SYSTEM- I will launch my rocket with an electrical launch system and electrical motor igniters
4. LAUNCH SAFTEY- I will use a countdown before launch,and will ensure that everyone is paying attention and is a safe distance of at least 15ft away when i launch rockets with D motors or smalle,and 30ft when i launch larger rockets
5. MISFIRES- If my rockets does not launch when i press the botton of my electrical launch system,i will remove the launcher's saftey interlock or disconnect it's battery before allowing anyone to approch the rocket
6. LAUNCHER- I will launch my rocket from a launch rod,tower,or rall to ensure that the rocket files nearly straight up.I will use a glass deflector to prevent the motor's exhaust from heating the ground,and i will cap the end of my launch rod when it is not in use.
7. SIZE - If my model rocket weighs more than one pound (453g) at liftoff or has more power than a single G motor,I will check and comply with federal aviation at administration regulations before flying
8. FLIGHT SAFETY - I will not launch my rocket at targets or near airplanes,and will not put any flammable or explosive payload in my rocket
9. LAUNCH SITE - I will launch my rocket outdoors,in and open area and in safe weather conditions,(*LITTLE or NO WIND) will ensure that there is no dry grass close to the launch pad(*OR IN THE FLYING FIELD)
10. RECOVERY SYSTEMS -I will use a recovery system such as a streamer or parachute in my rocket so that it returns safely and undamaged and can be flown again,and i will use only flameresistant or fire proof recovery systems wadding in my rockets
11.RECOVERY SAFETY - I will not attempt to recover my rocket from power lines,tall tress,or other dangerous places

Test

this is only a test