4/1/07

interssetion is over but we all had alot of fun i learend alot of stuff this past two weeks. Mr. davis are interssetion teacher was very fun to work with he wasnt like other teachers it was cool and not borring at all he said alot of things and about 90% of those things are still stuck in my head my favorite day was when we got to fly it was a very cool adventure and a expirence that im never going to forget and again it was really fun working with Mr. davis he was the best
and if it wasent for Mr. shulman we would have never had this expirence so thanks!!!!!!!!!!!!!!!!

3/29/07

(1) One thing that was in common with most of our rockets was that they all went up about the same distance and about the same time.

(2) One of the main reason that some of the rockets didnt work was because who ever build it didnt build it right.

3/27/07

1. You would need 800,000,000 lbs of fuel to lift 400,000 lbs of payload into space.
woooooooooooooooooow!!!! that is alot.

2. Nar Model Rocket Safety Codes:

• Materials- I will use only lightweight, non-metal parts for the nose, body, and fins of my rocket.
  


• Motors-I will use only certified, commercially-made model rocket motors, and will not tamper with these motors or use them for any purposes except those recommended by the manufacturer.

• Ignition System-I will launch my rockets with an electrical launch system and electrical motor igniters.

• Launch Safety-I will use a countdown before launch, and will ensure that everyone is paying attention and is a safe distance of at least 15 feet away when I launch rockets with D motors or smaller, and 30 feet when I launch larger rockets.

• Misfires-If my rocket does not launch when I press the button of my electrical launch system, I will remove the launcher's safety interlock or disconnect its battery, before allowing anyone to approach the rocket.


• Launcher-I will launch my rocket from a launch rod, tower, or rail to ensure that the rocket flies nearly straight up, and I will use a blast deflector to prevent the motor's exhaust from hitting the ground. and will cap the end of the rod when it is not in use.


• Size-If my model rocket weighs more than 1 pound at liftoff or has more power than a single g motor I will check and comply with Federal Aviation Administration regulations before flying.


• 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.
  


• Launch Site-I will launch my rocket outdoors, in an open area and in safe weather conditions . I will ensure that there is no dry grass close to the launch pad.


• Recovery System-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 flame-resistant or fireproof recovery system wadding in my rocket.
  


• Recovery Safety- I will not attempt to recover my rocket from power lines, tall trees, or other dangerous places.

3/26/07

1. True north is the direction of the earths north pole,
and magnetic north is the direction of earths magnetic pole.

2. The attitude gyro is something that tells you if you are banking.

3. Airfoil: Is something made to go through the air.

4. 30.88

5. 130.36

3/23/07

1. If 1 Nautical Mile= 1.15 Statute Mile, then how many Statute miles is equal to 5000 Nautical Miles? 5,750 statute miles

2.what i liked in this week was that we learned about alot of famous people and we also had alot of fun. we also learned:

• Yaw-
  
• Pitch-
• Roll-
• Dihedral-
• Static-
• Dynamic-
• Aerodynamic-
• And Many More.

one thing i didn't like was that we didn't get to do a lot of fun stuff but we were told that all the fun was going to start on Monday so i cant wait until that happens
i also learned about the 2 theory's and 1 effect.it was so cool learning all of this but it was also difficult to under stand.

2.

3/22/07

what is Occam's Razer?
"when ever one can remove the impossible,what
remains,how ever unlikely,[leads to] the truth".

why is Ruben H. Fleet so important?
Ruben H. Fleet is so important because he invented
the air male system.

What does Datum mean and what is the symbol?
Datum= last known position or recent known position
of lost target


Why was the red barons plane "Red"?
his plane was red because he needed to stand out
and get peoples attention

3/21/07

1.Bernoulli effect:
The phenomenon of falling pressure in a fluid as the velocity of the fluid stream increases. The Bernoulli effect accounts for the lift generated by the airfoil shape of an airplane wing.

Bernoulli effect:


2.
Yaw-
an angle, to the right or left, determined by the direction of motion of an aircraft or spacecraft and its vertical and longitudinal plane of symmetry.
Examples:


Pitch-
to deviate from a stable flight attitude by oscillations of the longitudinal axis in a vertical plane about the center of gravity.
Examples:




Roll-
a single, complete rotation of an airplane about the axis of the fuselage with little loss of altitude or change of direction.
Examples:



Dihedral-
the angle at which the right and left wings or the halves of any other horizontal surface of an airplane or the like are inclined upward or downward.
Examples:

Static-
pertaining to the science of weight and its mechanical effects,from mod.

Aerodynamic-
Designed to reduce or minimize the drag caused by air as an object moves though it or by wind that strikes and flows around an object. The wings and bodies of airplanes have an aerodynamic shape.
Examples:


This is the formula for lift:
L=C1xP over 2x V to the second power x A (formula)