|
|
|||||||
| Politics Where we learn not to think less of others who don't share our views |
 |
|
|
Thread Tools | Display Modes |
08-17-2006, 09:26 AM
|
#16 | |
|
in the Hour of Scampering
Join Date: Jan 2001
Location: Jeffersonville PA (15 mi NW of Philadelphia)
Posts: 4,060
|
Quote:
__________________
"Neither can his Mind be thought to be in Tune,whose words do jarre; nor his reason In frame, whose sentence is preposterous..." |
|
|
|
|
08-17-2006, 07:41 PM
|
#17 |
|
The future is unwritten
Join Date: Oct 2002
Posts: 71,105
|
If they don't have wheels, they lift just enough to break contact or skids on grass they'll actually slide, then start their run to pick up momentum while gaining altitude.
The rotors on a helicopter are different from the propeller on a plane. Rotors are actually a rotary wing and forward (or any direction) momentum is a great help in getting airborne, safely. A vertical ascent is the least stable situation for a helicopter and subject to an array of possible disruptions. 
__________________
The descent of man ~ Nixon, Friedman, Reagan, Trump. |
|
|
|
|
08-18-2006, 08:28 PM
|
#18 | |
|
in the Hour of Scampering
Join Date: Jan 2001
Location: Jeffersonville PA (15 mi NW of Philadelphia)
Posts: 4,060
|
Quote:
I once got to see the Miss Champion do that maneuver up close and personal at Pennridge Airport, before she retired to Oshkosh. Pretty remarkable considering an autogyro rotor isn't normally powered. But an PCA-2 has a clutch that lets them spin the rotor up in flat pitch, then pop the collective getting them high enough in the air to lean forward for airspeed to keep it autorotating.  In fact a propeller is a rotary wing too..but its lift is used as thrust, so retreating blade stall isn't a limit on airspeed. Which is why the Osprey swings both ways, of course.
__________________
"Neither can his Mind be thought to be in Tune,whose words do jarre; nor his reason In frame, whose sentence is preposterous..." Last edited by MaggieL; 08-18-2006 at 08:36 PM. |
|
|
|
|
|
08-19-2006, 07:19 PM
|
#19 | |
|
lobber of scimitars
Join Date: Jul 2001
Location: Phila Burbs
Posts: 20,774
|
Quote:
__________________
  wolf eht htiw og"Conspiracies are the norm, not the exception." --G. Edward Griffin The Creature from Jekyll Island High Priestess of the Church of the Whale Penis |
|
|
|
|
|
08-23-2006, 03:20 PM
|
#20 |
|
The future is unwritten
Join Date: Oct 2002
Posts: 71,105
|
Maggie, have you been to the helicopter museum in West Chester? They have a bunch of nice pieces including auto-gyros.
__________________
The descent of man ~ Nixon, Friedman, Reagan, Trump. |
|
|
|
|
08-23-2006, 03:47 PM
|
#21 |
|
Lecturer
Join Date: May 2006
Location: Atlanta
Posts: 768
|
Auto Gyro
__________________
Things are never as good, or bad, as they seem. 
|
|
|
|
|
08-23-2006, 04:12 PM
|
#22 | |
|
in the Hour of Scampering
Join Date: Jan 2001
Location: Jeffersonville PA (15 mi NW of Philadelphia)
Posts: 4,060
|
Quote:
I understand they do have an Ospery there...:-)
__________________
"Neither can his Mind be thought to be in Tune,whose words do jarre; nor his reason In frame, whose sentence is preposterous..." |
|
|
|
|
|
08-24-2006, 08:34 PM
|
#23 |
|
The future is unwritten
Join Date: Oct 2002
Posts: 71,105
|
Yeah, the V-22 dedication was how I ended up there. I was pleasantly surprised how much stuff they have. They even had a couple early, military, one man hovercrafts.
__________________
The descent of man ~ Nixon, Friedman, Reagan, Trump. |
|
|
|
|
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
| Thread Tools | |
| Display Modes | |
|
|
Linear Mode
