Rotor와 Diaphragm 사에에서 생기는 Inter-stage Packing Leakage(14.4%) 등이 지배적으로 영향을 미치는 요인이다.(그림3-2)
두 번째로 많은 부분을 차지하는 Flow Path Damage에 의한 손실로는 보일러, 증기관 등에서 발생된 박리된 금속 산화물, 이물질과의 충돌에 의해 생기는 Solid-Particle Erosion(SPE), 사이클에 사용되는
troubles will go away. Since you don't have contact with the blade it's more safer, and electrically powered it's more faster and the last and not the least you can enjoy your apple being peeled. It is quite a sight to look your apple being peeled automatically right in front of your eyes. There is no time to waste on hesitating just reach your closet seller and order your personal apple peeler.
NOTAR(NO TailRotor)
Antitorque by using airflow
More expensive but less noise
Coaxial Helicopter (concentric or located along the same axis)
Coaxial Helicopter use Two shafts.
Each shaft rotate opposite direction.
→anti-torque
High Useful Load but complicate rotor design
Problem 3.52
One of the tailrotorblade of a helicopter has an unbalanced mass if m = 0.5
rotors strobing
in the fading sunlight. Drawing closer, the SOUND of
powerful TURBINES, throbbing in the heavy air, becomes
dominant, overpowering.
Guided by COLORED SMOKE and LANDING LIGHTS, the chopper
looms hard INTO VIEW, pitching forward and settling to
the ground, kicking up a maelstrom of dust and vegetation
2-A INT. COMMAND POST - DAY (MAGIC HOUR) 2-A *
Where a MAN wearing a military UNIF
rotors strobing
in the fading sunlight. Drawing closer, the SOUND of
powerful TURBINES, throbbing in the heavy air, becomes
dominant, overpowering.
Guided by COLORED SMOKE and LANDING LIGHTS, the chopper
looms hard INTO VIEW, pitching forward and settling to
the ground, kicking up a maelstrom of dust and vegetation
2-A INT. COMMAND POST - DAY (MAGIC HOUR) 2-A *
Where a MAN wearing a military UNIF