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Author Topic: Hey pilots, check this GIF out....  (Read 1277 times)
Fly320s
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« Reply #25 on: July 10, 2018, 08:14:26 AM »

Radar altimeter starts calling out at 50 feet and lower, but I donít pay attention to it.  I use my Mk1 Eyeballs to judge the height.
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Hawkmoon
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« Reply #26 on: July 10, 2018, 09:34:18 AM »

Radar altimeter starts calling out at 50 feet and lower, but I donít pay attention to it.  I use my Mk1 Eyeballs to judge the height.

So the radar altimeter is just there for when both pilots have the fish for dinner and one of us passenger types has to land the plane?
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Warren
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« Reply #27 on: July 10, 2018, 09:39:35 AM »

So the radar altimeter is just there for when both pilots have the fish for dinner

Quote
'S'mofo butter layin' me to da' BONE! Jackin' me up... tight me!
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Fly320s
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« Reply #28 on: July 10, 2018, 12:34:05 PM »



I speak jive.
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Fly320s
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« Reply #29 on: July 10, 2018, 12:35:19 PM »

So the radar altimeter is just there for when both pilots have the fish for dinner and one of us passenger types has to land the plane?

That won't help you.  The RA does give us height information that we use during certain approaches, but for normal landings, I just use the seat of my pants.
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Warren
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« Reply #30 on: July 10, 2018, 12:43:02 PM »

I speak jive.

Did you know this?

Muggles
    1930s and '40s slang for marijuana.

Mugglin'
    I's a-muggin', you's a-muggin', meaning getting high on reefer.
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230RN
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« Reply #31 on: July 10, 2018, 01:18:49 PM »

That won't help you.  The RA does give us height information that we use during certain approaches, but for normal landings, I just use the seat of my calibrated pants.

Fixed.

"I speak jive, stewardess."

(Barbara Billingsley, mother of the Beaver, in just about her last role.)

https://youtu.be/g0j2dVuhr6s?t=57

Terry

REF:
https://en.wikipedia.org/wiki/Leave_It_to_Beaver
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Hawkmoon
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« Reply #32 on: July 10, 2018, 07:01:22 PM »

That won't help you.  The RA does give us height information that we use during certain approaches, but for normal landings, I just use the seat of my pants.

So if I'm on your aircraft when you have the fish for dinner, I can't land the plane unless I can fit into your pants? Or is a passenger landing the aircraft not considered a "normal" landing?
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Warren
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« Reply #33 on: July 10, 2018, 07:03:39 PM »

So if I'm on your aircraft when you have the fish for dinner, I can't land the plane unless I can fit into your pants?

This truly is the best timeline.
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230RN
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« Reply #34 on: July 10, 2018, 08:48:42 PM »

You must be One with the aircraft, Grasshopper.  Calibrated pants or no pants at all.


                
« Last Edit: July 10, 2018, 09:08:07 PM by 230RN » Report to moderator   Logged

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MillCreek
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« Reply #35 on: July 11, 2018, 06:21:58 AM »

Fly320 is just hoping that someone will inflate him, as per the original movie:

https://www.youtube.com/watch?v=_WQfZYacEAw
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Quote from: Angel Eyes on August 09, 2018, 01:56:15 AM
You are one lousy risk manager.
Fly320s
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« Reply #36 on: July 11, 2018, 08:11:00 AM »

You must be One with the aircraft, Puddlejumper.  Calibrated pants or no pants at all.

Fixed.


Quote
Fly320 is just hoping that someone will inflate him, as per the original movie:

Inflate/felate.  All is good.
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HeroHog
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« Reply #37 on: July 11, 2018, 11:17:57 AM »

Sacred movie for me. I met my wife of 38 years on a blind double date to see Airplane! when it first came out. Married her exactly a year to the minute that date started.
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Yeah, whatever...
230RN
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« Reply #38 on: July 11, 2018, 03:52:03 PM »

Neat story, HeroHog.

I remember the first time I saw it I would laugh so hard at one joke, I'd miss the next one.  Had to see it several times to get it all.  I remember I was shocked at the inflation scene.  Nowadays, meh, funny, but not so prurient any more.

« Last Edit: July 11, 2018, 08:50:16 PM by 230RN » Report to moderator   Logged

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230RN
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« Reply #39 on: July 11, 2018, 08:51:01 PM »

Forty-six mile water skiing by aircraft:

https://youtu.be/6OAEGPVcvhU (2:36)

Hmmmm, 46 miles in 2 minutes 36 seconds.  What's that work out to in miles per hour? Cheesy
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Fly320s
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« Reply #40 on: July 12, 2018, 02:46:00 AM »

Hmmmm, 46 miles in 2 minutes 36 seconds.  What's that work out to in miles per hour? Cheesy

1,061 mph!!  That plane was flying!



Or, if we account for the Youtube editing, 52 mph average.
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230RN
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« Reply #41 on: July 12, 2018, 04:34:54 AM »

Cheesy That's what I got, too Cheesy

Interesting to watch the wheels bouncing over the ripples.

Say, did I notice the winglets are tipped downward at 0:21 and possibly other spots?  I asked about the efficacy of down-tipped versus up-tipped winglets in crosswind landings a couple of months ago, but sort of got poo-pooed on that one.

I figured down-tipped winglets would help hold the wing level in crosswind landings.  (As well as reducing the vortex effect.)

Hard to tell, they're black against a dark background.

Terry, 230RN
« Last Edit: July 12, 2018, 05:04:47 AM by 230RN » Report to moderator   Logged

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Fly320s
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« Reply #42 on: July 12, 2018, 05:15:01 AM »

Droop tips improve low-speed flight and handling.  They actually decrease the stall speed by a knot or three.

Upswept wing tips decrease drag in high-speed flight.

Neither type affects crosswind landing because the empennage (fancy French word for tail) has a longer arm from the CG and therefore has a greater moment to steer the nose in crosswind landings/takeoffs.  The winglets may contribute slightly to drift just because they will catch the wind more than a flat wingtip will, but compare to the size and shape of the fuselage, the effect is minimal.  So, allowing a slight amount of crosswind-induced drift because of the winglets doesn't cancel out the greater effects of high-speed drag reduction or low-speed stability.
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230RN
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« Reply #43 on: July 12, 2018, 08:03:04 AM »

I'm not talking about yaw, I'm talking about roll in a crosswind, where the upwind wing tends to get picked up and sometimes the downwind wing touches the ground.  The winglets have a large moment arm on which to counteract the roll (negative* feedback) if they're tipped down, and emphasize the roll (positive* feedback) if they're tipped up.

Just seems that way to me.

                                    /
___________________/   <--------------- crosswind
            WING
Wind from the right tends to tip the wing up, a positive feedback situation

___________________
             WING             \   <-------------  crosswind
                                    \

Wind from the right tends to tip the wing down, a negative feedback situation.

All depending on angles and airfoil and so forth, but it looks like the down-tipped winglet (giving negative feedback) would be inherently desirable.

But they don't do it that way, so this must be wrong.

Terry, 230RN

* "Negative" and "positive" are in the mathematical sense, not the emotional sense.
« Last Edit: July 12, 2018, 08:29:13 AM by 230RN » Report to moderator   Logged

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Fly320s
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« Reply #44 on: July 12, 2018, 09:11:34 AM »

I understand now. 

The winglets are so small, and the plane is so heavy, that a crosswind will not push on the winglet and roll the plane. 
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freakazoid
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« Reply #45 on: July 12, 2018, 03:42:36 PM »

Droop tips improve low-speed flight and handling.  They actually decrease the stall speed by a knot or three.

Upswept wing tips decrease drag in high-speed flight.

Why not do both?
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Hawkmoon
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« Reply #46 on: July 12, 2018, 04:04:57 PM »

Why not do both?

Why not put 'em on hinges?
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Fly320s
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« Reply #47 on: July 12, 2018, 04:12:22 PM »

.
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Fly320s
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« Reply #48 on: July 12, 2018, 04:18:51 PM »

As you wish
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BobR
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« Reply #49 on: July 12, 2018, 04:19:14 PM »

Or maybe some here a few there. Wink



bob
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