Previous Thread
Next Thread
Print Thread
#410051 - 06/17/11 10:51 AM Bird Airspeed Chart  
Joined: Oct 1999
Posts: 55,669
Marty Offline
Marty  Offline
(from Houghton1964)

[Linked Image]

#410052 - 06/17/11 10:53 AM Re: Bird Airspeed Chart [Re: Marty]  
Joined: Oct 1999
Posts: 55,669
Marty Offline
Marty  Offline
from friends....

I know that Perigrine Falcons are consider the fastest flying bird - with some pigeon coming very close. Max speed in straight flight lays around 120 km/hr - P. Falcon have in Denmark at Moens Klint been logged at 264 km/hr in hunting dive.


I can remember a pair of Rock Pigeons in South Africa flying alongside the road while driving at 60mph. They were weaving in and out of the tops of Blue Gum trees all the while keeping level with the car.



I figured out years ago that Birds and Insects Don't move wings up, then down, like an engine piston.

They use Springs ;-)

That is their whole wing system and flight mussels form a spring system which will oscillate on its own. So when the bird pulls its wings down, they will automatically spring back up to the high position. So all the bird has to do is keep this oscillation motion going. So much less energy is required to maintain flight. You can see that in the figures they gave, each bird species has its own natural frequency, but that will be modified by age, wing size etc.

They row through the air. Figure 8 motion. Even the back stroke creates lift and forward motion.
Makes our jetfighters look a bit silly for efficiency, eh?

Yes they do "Row" through the air.
I think it is more of a figure of "0" that they move their wings round in, a bit like swimmers doing the "Butterfly" stroke.
That figure of "0" action, together with changing the angle of attack of their wings, makes for very efficient use of energy.
I even designed a man powered craft round that principal, but never had the time etc. to try to build it.

Most birds fly with their tail flat, twisting for manoeuvring.

But the black birds here, fold their tail feathers up to form a vertical Fin, only flattening the tail for landing.


The Peregrine Falcon has traditionally had the crown for speed, but the Lanner Falcon indigenous to Africa is equally as fast, if not maybe more so. It is jut not as well known a species of falcon. The falcons probably are the fastest of the birds.

I was once on the side of a mountain when a Golden Eagle came past in an almost vertical dive. I just saw a brown flash and the wind whine in it's feathers extremely loud. Fortunately I had binoculars and could identify it when it pulled out of the dive.

Portofino Resort- Now with a new BEACH BAR!!

Click for excellent scuba lessons with Elbert Greer!

Things to do

Daily News
Daily Weather

Classified Ads
San Pedro Sun
Ambergris Today
SP Town Council
Channel 7
Channel 5
Love FM
The Reporter
TV Newscasts
Radio Stations

Click for our
Search thousands of Belizean-only websites

Event Guides
Event Calendar
Specials & Events
Things to Do
iTravel Belize
Paradise Theater
Paradise Guy Event Calendar

San Pedro Scoop!
Tia Chocolate
My Beautiful Belize
I-Travel Belize
Belize Adventure
Belize Hub
Romantic Travel
Bound for Belize
Conch Creative
As The Coconuts Drop
More Blogs...
Search thousands of Belizean-only websites
Chaa Creek is an award-winning luxury Belize Resort, rated as one of the worlds best Eco Lodges. We are a pioneer in adventure travel to Belize since 1981!
White Sands Dive Shop - 5 Star PADI Dive Facility - Daily diving, SCUBA instruction and Snorkeling
Caribbean Inspired All Natural Condiments & Spice Blends, Over 100 are Gluten Free!
We manage a variety of homes, apartments, condos and commercial properties here on Ambergris Caye. Our minimum lease on ALL properties is six months.
Conch Shell Inn: All rooms are right on the beach in the heart of San Pedro, so within walking distance to anything and everything!!
Lil Alphonse has snorkel equipment to fit anyone as well as Marine Park Tickets and flotation devices to assist those not as experienced.
Coastal Xpress offers a daily scheduled ferry run to most resorts, restaurants and private piers on the island of Anbergris Caye. We also offer  private and charter water taxi service.
1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30
Cayo Espanto
Click for Cayo Espanto, and have your own private island
More Links
Click for exciting and adventurous tours of Belize with Katie Valk!
Mini Chat
Who's Online Now
0 registered members (), 229 guests, and 5 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Most Online1,262
Jun 10th, 2007 HELP! Visitor Center Goods & Services San Pedro Town Message Board Lodging Diving Fishing Things to Do History Maps Phonebook Belize Business Directory Picture of the Day

The opinions and views expressed on this board are the subjective opinions of Ambergris Caye Message Board members
and not of the Ambergris Caye Message Board its affiliates, or its employees.

Powered by UBB.threads™ PHP Forum Software 7.6.0