Random Aerodynamic Oddity of the Day Thread

[kach22i]

Originally Posted by Bicycle Bob

It would move readily, if not quickly, with weight shifting. The model could just tilt her head to make it respond.

Spot on.

I've watched a few of the small round disk leaf blower hovercraft on Youtube. They typically have someone push them, then slide down a driveway and stop at the first object they collide with. It's all stupid fun I guess.

[cRiPpLe_rOoStEr]

Rounded corners in this bus body might be seen as an aerodynamic oddity...

[cRiPpLe_rOoStEr]

[Bicycle Bob]

I'm no Google jockey, but AFAIR, Homebuilt Aircraft once ran a long article about the wind tunnel results from a WW II fighter. They started with the basic shape but an ideal nose, and slowly added the hardware needed, starting with engine cooling, but also recording the radio antennas, mirror, gun ports, air scoops, etc. The drag doubled, but seeing what hurt was sometimes surprising.

[arcosine]

[QUOTE=kach22i;590091]The more things change: Stupid 1970s and 1980s muscle car mods - Page 3 - Pelican Parts Forums


Cool AMX!

[kach22i]

Lots of weird/odd wing configurations and maybe even odd terms used in this Wikipedia entry.

Wing configuration
https://en.wikipedia.org/wiki/Wing_configuration

[freebeard]

Moustache for canard is the only one I find odd.

[cRiPpLe_rOoStEr]

I have never seen any reference to the canard as moustache before.

[Piotrsko]

It's only a canard if it controls major pitch. Most of these on delta planforms are for fine trim or airflow redirection at high AOA.

[kach22i]

Originally Posted by cRiPpLe_rOoStEr

I have never seen any reference to the canard as moustache before.

I posted the link because of all of the unusual wing layouts. I've seen most of them before but as a collection in simple diagram form it is mind expanding.

Tupolev Tu-144
https://en.wikipedia.org/wiki/Tupolev_Tu-144

They also added two small retractable surfaces called a Moustache canard, with fixed double-slotted LE slats and retractable double-slotted flaps. These were fitted just behind the cockpit and increased lift at low speeds.

Moving the elevons downward in a delta-wing aircraft increases the lift (force), but also pitches its nose downward. The canards cancel out this nose-downwards moment..........

I've never hear of a Moustache canard before either.

Rockwell B-1 Lancer
https://en.wikipedia.org/wiki/Rockwell_B-1_Lancer

A pair of small vanes mounted near the nose are part of an active vibration damping system that smooths out the otherwise bumpy low-altitude ride.

A true canard acts like a tail wing but in opposite direction to help balance the center of lift and center of gravity.

A tail wing holds down the tail against the moment arm of lift created by the main wings.

Hence a canard holds up the nose against the moment arm of lift by the main wings.

From this a canard provides lift, a strake, chine or vane mostly provides stability, and a Moustache canard combines many of these flight characteristics.

I guess.

Does that sound right?

Welcome to The Beginner's Guide to Aeronautics
https://www.grc.nasa.gov/www/k-12/airplane/