Cosmick Posted January 10, 2015 Share Posted January 10, 2015 http://www.abc.net.au/news/2015-01-10/jet-stream-speeds-up-north-atlantic-crossing/6010310 1 Link to comment Share on other sites More sharing options...
facthunter Posted January 10, 2015 Share Posted January 10, 2015 You can get over 200 Knots tailwind from these winds. It's not all good. There can be some severe turbulence associated with them at the boundaries. You are not likely to have the experience with RAAus planes. They are at high altitudes.. Nev 1 Link to comment Share on other sites More sharing options...
Birdseye Posted January 11, 2015 Share Posted January 11, 2015 Some years back, when BA were still flying through Perth, I observed a 747 radar ground speed of over 1250 km/h (650 kts) at 140 nm WSW of Perth. When I remarked on it the pilot said once they were in the jetstream the ride was very smooth. Poor sods coming the other way had a very low, slow and bumpy ride. 1 Link to comment Share on other sites More sharing options...
yampy Posted January 11, 2015 Share Posted January 11, 2015 I saw a Dash 8 with a ground speed of 430kts this morning over the North Sea , yet a B 737 in an opposite direction doing just 240kts .. Link to comment Share on other sites More sharing options...
Guest Howard Hughes Posted January 11, 2015 Share Posted January 11, 2015 I was lucky enough to cross the Atlantic in 2011, had winds in the 130-150 knot range for the entire crossing. This is heading up to St Johns, prior to heading out across the Atlantic. Link to comment Share on other sites More sharing options...
Birdseye Posted January 11, 2015 Share Posted January 11, 2015 You'd be getting a good breeze at mid-high levels just now. http://earth.nullschool.net/#current/wind/isobaric/500hPa/orthographic=-46.96,34.35,414 1 Link to comment Share on other sites More sharing options...
Guernsey Posted January 11, 2015 Share Posted January 11, 2015 Well guys, not wishing to sound big headed, but a few years ago I took off and headed north into a very strong head wind and on returning to the airfield my ground speed had increased by over 500%. Here is a photo taken just after the record breaking flight. Alan. 1 1 Link to comment Share on other sites More sharing options...
Downunder Posted January 11, 2015 Share Posted January 11, 2015 Last year I had 50kts wind over my field at 3000. Made a "high speed" run down wind at 144Kts G/S.....amazed how fast the scenery was passing below me. Made the return trip at 30 something.......thought about doing the hover thing (0kts G/S) but chickened out.....thought 3000 was a bit low. Not wanting to push my luck, I returned to land in wind under 10kts, the same as I'd taken off at ........ Funny what only a couple of thousand feet can be in wind speed...... Link to comment Share on other sites More sharing options...
Guest Howard Hughes Posted January 11, 2015 Share Posted January 11, 2015 Well guys, not wishing to sound big headed, but a few years ago I took off and headed north into a very strong head wind and on returning to the airfield my ground speed had increased by over 500%.Here is a photo taken just after the record breaking flight. Alan. Sounds like a good day for some 'flying backwards'! Link to comment Share on other sites More sharing options...
Gnarly Gnu Posted January 11, 2015 Share Posted January 11, 2015 Some years back, when BA were still flying through Perth, I observed a 747 radar ground speed of over 1250 km/h (650 kts) at 140 nm WSW of Perth. Yes the westerlies can be great when you want to go east! I was on a QF PER - ADL flight once which left Perth very late & the pilot needed to make up time so must have hooked in. He advised mid flight we were averaging in excess of 1150 km/h groundspeed! 1 1 Link to comment Share on other sites More sharing options...
Guernsey Posted January 11, 2015 Share Posted January 11, 2015 Is there a 'flying in reverse' endorsement? Alan. 1 Link to comment Share on other sites More sharing options...
Cosmick Posted January 11, 2015 Author Share Posted January 11, 2015 A mate and I were flying our PPC's out near Goondiwindi chasing Pigs forr the guys on the ground with dogs (owners permission to fly low etc etc), when finished I was at 1000 agl waiting for Andy to land into a 10 kt headwind, as the airspeed of the Aerochute is 30 kt I had a while to wait. I had this sensation of going nowhere and I looked at the GPS for ground speed and I was doing 2 kts. I then realised I was going backwards. No problem, once Andy was clear I lost altitude into milder winds. 1 Link to comment Share on other sites More sharing options...
Boongala Posted January 12, 2015 Share Posted January 12, 2015 I remember a flight I operated from Hong Kong to Los Angeles via the "flex tracks" which were constructed on a daily basis to optimize the wind, we sat for 3+ hours with a ground speed of 650 knots (150 kts twc) The strongest wind I recall seeing was on a flight from Narita to Hong Kong in the L1011, I have a photo of the INS wind readout somewhere, was 201 deg/200kts. Link to comment Share on other sites More sharing options...
Guernsey Posted January 12, 2015 Share Posted January 12, 2015 I have actually flown in reverse many years ago from Blackpool to the Isle of Man; this was in a Silver City Bristol Freighter with rearward facing passenger seats. ' Alan. 1 Link to comment Share on other sites More sharing options...
facthunter Posted January 12, 2015 Share Posted January 12, 2015 For ultra light ops it is possible to land going backwards if the wind speed exceeds your landing speed. I suggest you don't allow this to happen as I doubt you will control it. I did have one instance where the wind was like that with a DH 82 at Rutherford. A couple of people came out and I wheeled it on with power still on and they grabbed the wingtips and I kept a bit of power on and the tailup to keep it on the ground. I would not want to do it often. Nev Link to comment Share on other sites More sharing options...
nomis Posted January 12, 2015 Share Posted January 12, 2015 Coming out of Narita this morning. 2 Link to comment Share on other sites More sharing options...
Birdseye Posted January 12, 2015 Share Posted January 12, 2015 With a mean track around 245 you've have copped a large slice of that on the way to Honkers! Link to comment Share on other sites More sharing options...
poteroo Posted January 13, 2015 Share Posted January 13, 2015 On an Air NZ B767 in June,2010, en route Auckland-Perth direct, they took a more northerly route via over Sydney then to the north of Adelaide. Headwind was 168 kts from Sydney to near Kalgoorlie. Made a long trip even longer. happy days, Link to comment Share on other sites More sharing options...
facthunter Posted January 13, 2015 Share Posted January 13, 2015 You need the right information from Met.to avoid (or go for it when it is favorable.) I have gone for it out of Perth and got appr0x 200 kts assistance by going well north of normal track. As I mentioned in a previous post there can be associated turbulence at the edges where the wind speed is changing rapidly so there is some risk. Jetstream is a lot different to the lat40 trade winds at lower levels. Nev Link to comment Share on other sites More sharing options...
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