UNMANNED AND NO WINDSOCK LANDING

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Re: UNMANNED AND NO WINDSOCK LANDING

Unread post by apollo11 » Mon Nov 13, 2017 8:18 pm

Ting ting ting, that is the bell for Jim, mention accident Wx, IAS and GS and Jim is on your back for good reason and cause... say "Jim get off my back." Jim will go "but I have not got on your back yet!"
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Re: UNMANNED AND NO WINDSOCK LANDING

Unread post by JCA » Mon Nov 13, 2017 9:26 pm

Four indicators to assist you if they are relatively close to your runway.
1. Any body of water of reasonable size. The upwind surface is calm and smooth for up to 3 m from the shore/bank
2. Cows. They stand with their butts into wind when they munch the grass.
3. Smoke. nearly always something burning somewhere especially if your runway is close to a service delivery protest.
4. Dust and or whirlwinds. Whirly's (Not the Helo kind) leave a track along the ground which is reasonably easy to see.

PS none of the above will suffer from battery failure nor the input of duff coordinates.
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Re: UNMANNED AND NO WINDSOCK LANDING

Unread post by rb » Tue Nov 14, 2017 7:29 am

JCA wrote:Four indicators to assist you if they are relatively close to your runway.
1. Any body of water of reasonable size. The upwind surface is calm and smooth for up to 3 m from the shore/bank
2. Cows. They stand with their butts into wind when they munch the grass.
3. Smoke. nearly always something burning somewhere especially if your runway is close to a service delivery protest.
4. Dust and or whirlwinds. Whirly's (Not the Helo kind) leave a track along the ground which is reasonably easy to see.

PS none of the above will suffer from battery failure nor the input of duff coordinates.


and if you near the coast anchored ships/boats - the anchor line will point into the wind
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Re: UNMANNED AND NO WINDSOCK LANDING

Unread post by ACE MAN » Tue Nov 14, 2017 8:17 am

All the above but also time taken (seconds) at a given IAS (say 80kts) threshold to threshold will give you the shorter distance for the longer time the direction into wind - plus flying that you will see which way the nose weather cocks and you will know the crosswind condition. This was part of my precautionary landing training as a PPL or CPL , can't remember now.

Edit- hope that makes better sense , that’s why Jim should do the explaining here
Last edited by ACE MAN on Tue Nov 14, 2017 9:57 am, edited 1 time in total.
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Re: UNMANNED AND NO WINDSOCK LANDING

Unread post by Airlou » Tue Nov 14, 2017 9:38 am

Its simple like ACE are suggesting....in my valley its most of the landings,,,plan it as a precautionary.
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Re: UNMANNED AND NO WINDSOCK LANDING

Unread post by happyskipper » Tue Nov 14, 2017 1:08 pm

rb wrote:
JCA wrote:Four indicators to assist you if they are relatively close to your runway.
1. Any body of water of reasonable size. The upwind surface is calm and smooth for up to 3 m from the shore/bank
2. Cows. They stand with their butts into wind when they munch the grass.
3. Smoke. nearly always something burning somewhere especially if your runway is close to a service delivery protest.
4. Dust and or whirlwinds. Whirly's (Not the Helo kind) leave a track along the ground which is reasonably easy to see.

PS none of the above will suffer from battery failure nor the input of duff coordinates.


and if you near the coast anchored ships/boats - the anchor line will point into the wind


Sorry to burst your bubble rb - that is only applicable if the wind effect is stronger than/or in the same direction as any current or tidal flow. So if the wind is strong, it may apply - but not if winds are gentle..... :mrgreen:
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Re: UNMANNED AND NO WINDSOCK LANDING

Unread post by richard C » Tue Nov 14, 2017 1:49 pm

The quality of the ground rush on short final ? 8-[

On the few occasions I have done a downwind landing, there has been a palpable ground rush before the flare and a crazy float. Take power, do a teardrop, come back and land on the other side ! Saves mucking about up and down fiddling with a stopwatch, sextant and whizz wheel.
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Re: UNMANNED AND NO WINDSOCK LANDING

Unread post by nrm » Tue Nov 14, 2017 2:48 pm

Fly across the runway at 90 degrees. Drift will give you a good indication of wind direction.

Now fly into wind overhead and along the runway. Drift will give you an indication of crosswind component.
Last edited by nrm on Wed Nov 15, 2017 3:54 pm, edited 1 time in total.
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Re: UNMANNED AND NO WINDSOCK LANDING

Unread post by jimdavis » Tue Nov 14, 2017 7:02 pm

nrm wrote:Fly across the runway at 90 degrees. Drift will give you a good indication.


That's by far the best answer so far =D> =D> =D> =D> =D> :D

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Re: UNMANNED AND NO WINDSOCK LANDING

Unread post by cage » Tue Nov 14, 2017 7:14 pm

How about glance down at the wind vector display on the G1000 and take it from there ;)
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Re: UNMANNED AND NO WINDSOCK LANDING

Unread post by pafuri » Tue Nov 14, 2017 9:07 pm

jimdavis wrote:
nrm wrote:Fly across the runway at 90 degrees. Drift will give you a good indication.


That's by far the best answer so far =D> =D> =D> =D> =D> :D

Jim

+1 nrm, my destination is nowhere near civilization, cows are buffaloes and no harbors nor boats. Jim, where have you been all along ?
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Re: UNMANNED AND NO WINDSOCK LANDING

Unread post by flypiper » Wed Nov 15, 2017 6:34 am

Hi Cage.

No G1000 in my Super Cub :D
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Re: UNMANNED AND NO WINDSOCK LANDING

Unread post by PO » Wed Nov 15, 2017 7:10 am

cage wrote:How about glance down at the wind vector display on the G1000 and take it from there ;)

Two turns and I have wind speed and direction on my Colibri, for my altitude at least. :twisted:
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Re: UNMANNED AND NO WINDSOCK LANDING

Unread post by jimdavis » Wed Nov 15, 2017 9:15 am

The OP said there were strong upper winds and the strip is surrounded by ugly hills, Electronic gadgetry is unlikely to be much help.

This was an interesting thread about the sort of thing we seldom encounter.

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Re: UNMANNED AND NO WINDSOCK LANDING

Unread post by Learjet » Wed Nov 15, 2017 10:47 am

Doing a fair bit of x-country flying in a gyro and having had to to do jerry-can refueling stops at an assortment of unmarked "bush strips", I've encountered this scenario a couple of times. I always try to maintain a sense of wind direction at all times throughout my flight, but when joining overhead on the "cross runway" leg I will also let the gyro "wind vane" naturally (i.e no rudder input) - letting the yaw provide confirmation of the wind direction. Not sure if this works as well in fixed wings as in gyros which "hang" under the rotor and weather vane quite nicely.
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