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Bates106
24th Jul 2009, 13:27
I have heard many different names and different ways of calculating it, post your name and your way of calculating it: when your track is 090 degrees and there is a wind at 11 knots from the North, and your flying at a speed of 100mph, what is your heading with the wind and still gonna end up at the destination!:confused::confused:

vee1-rotate
24th Jul 2009, 14:23
lolwut????

Diversion90
24th Jul 2009, 14:46
I think that what Bates106 is trying to ask is, how do you calculate a heading when given a track, wind and TAS. I am unable to assist him on how to do this with a E6B as I use a Jepp CR-2 (They are different right?)

PyroTek
24th Jul 2009, 14:55
on the back (obviously) get the low speed side of the table:
I put the centre point on an airspeed, such as 100kt... (Somethnig even, or at least on a grid line) and i turn the glass so N is against the arrow (provided wind is north after magnetic variation) and i put a pencil mark 11kt's above the centre point. Then i turn it to my track. I move the pencil mark up or down to my TAS line, the centre point is my ground speed, and the number of marks off indicates track error.. for every line is 2° Track error, with this you have to alter heading to the direction that the pencil mark is in.

:ok:Pyro

Icarus53
24th Jul 2009, 22:21
Check out the big brain on Pyro!:ok:

Used to love my E6B, and the fact that I can remember how to use it after many years shows how simple it is. Wonder if I can still do anything with a CR2?

ForkTailedDrKiller
24th Jul 2009, 22:33
Insert a flightplan on your GPS. Activate the flightplan. Set the CDI to whatever the GPS says. Bug the same on the DI/HSI. Put the AP on Omni - and let it rip!

Oh dear! I haven't used an E6B since I did CPL flightplanning 25 yrs ago and I stopped carrying a CR2 in my top pocket just for show about 10 yrs ago! Only ever used it to calculate TAS!

I assume from this thread that these things are still being used?? Geez Pyro, I am impressed. A Gen Y techno geek the master of a 60+ yr old piece of technology.

Dr :8

PS: When I saw the title of this thread I thought someone was looking for an E6B for a museum collection! :E

training wheels
24th Jul 2009, 22:49
I have heard many different names and different ways of calculating it, post your name and your way of calculating it: when your track is 090 degrees and there is a wind at 11 knots from the North, and your flying at a speed of 100mph, what is your heading with the wind and still gonna end up at the destination!:confused::confused:

I think Bates is asking this;

Track 090; Wind 360/11; TAS 100.

I use the CR-3 (less pencil markings required than the E6B).

Your heading will be 084 and groundspeed 100.

As for a name for this method? :confused:

Arm out the window
25th Jul 2009, 00:25
Or you could just use:

Drift = crosswind component divided by groundspeed in nm/min.
No headwind component, so g/s = 100 mph (close enough to 90 kt).


Crosswind = 11 kt, g/s (approx) = 1.5 nm/min, so there's 7 degrees of drift.

Hdg = 083.
No computer required except your brain.

Capt Fathom
25th Jul 2009, 01:34
E6B_Manual (http://www.asa2fly.com/files/support/E6B_Manual.pdf)

By the way:

Your TAS is effectively reduced whenever there is any significant drift!

Effective TAS = TAS muliplied by cos(drift angle).

In the case above, it reduces your effective TAS by less than a knot. But you should consider it when you have a significant drift angle over long leg distances!

hoss
25th Jul 2009, 06:55
exactly, i was waiting for someone to mention ETAS. that should answer the second part of the original question, i think!

MakeItHappenCaptain
25th Jul 2009, 10:05
I use the CR-3 (less pencil markings required than the E6B).

Your heading will be 084 and groundspeed 100.

Actually, when using the E6B, the reduction in forward speed due to larger angles of drift is allowed for (that's why the speed lines are curved).
For anything larger than 10 degrees of drift when using a Jepps unit, you will need to refer to the immediate left of the TAS triangle. Reference the angle of drift and read off reduced TAS due to drift. Head/tail wind is then applied as per normal.

Think of it as if you were holding 90 degrees of drift. Your forward speed to start with (forget headwind) would be zero.:ok:

ps, FTDK, next time you need an AFR, come see me. Amazing how many people have forgotten how to navigate once their GPS has spat the dummy, especially if it has happened during the flight.:E

ForkTailedDrKiller
25th Jul 2009, 11:27
ps, FTDK, next time you need an AFR, come see me

If I don't know what it is - how will I know if I need one?

Dr :8

slackie
25th Jul 2009, 21:44
Just whipped the "wizz-wheel" out and had a play....2 things surprised me...that I remembered how to use it, and that I could find it in the first place!!!!!

Thanks Bates!!

Bates106
25th Jul 2009, 22:04
:)No prob!!!!!!!!!!:):):)

MakeItHappenCaptain
25th Jul 2009, 23:43
FTDK;

AFR? Same as a BFR, just CASA has given it a new name.
Please tell me it hasn't been so long since you've done one of those you forgot whet they were.....:}
Seriously, it is amazing how many people forget about them. Recent example, CASA says,
"Let's see....you forgot to check your radio volume and took off without clearance as the control zone went active....Four years since you last had a check you say....":rolleyes:

Arm out the window
26th Jul 2009, 04:16
I went to the flight service office to check the notams and put in a flight plan, but it was all boarded up. (I was flying into an AFIZ, so I thought I'd better do the right thing). That meant there was no-one to check my fuel calculations and sign my plan, but in the end I decided to go anyway.
Then when I flew into a control zone, the controller got up me, said I should say my callsign last! What a cheek. I should report him to the DoA.
Maybe it's time I did one of those AFR things.

Tinstaafl
26th Jul 2009, 04:46
Who's the DoA? DCA you mean?

Anyway, as long as I call 30nm inbound to FS I should be fine. Mind you losing time stepping down to LSALT to minimise my time in capital city controlled airspace and then find the ceiling just went below circling is a bit of pain.

ForkTailedDrKiller
26th Jul 2009, 06:30
AFR? Same as a BFR, just CASA has given it a new name

OK, I'll bite! What does AFR stand for?

Please tell me it hasn't been so long since you've done one of those you forgot whet they were.....http://images.ibsrv.net/ibsrv/res/src:www.pprune.org/get/images/smilies/badteeth.gif

For the record, I have never done an AFR, but I a check of the log books reveals 4 x BFRs over the last 27 years !! I guess that makes them SFRs - Septannual Flight Reviews!

Dr :8

Bates106
26th Jul 2009, 17:32
What does AFR stand for????????????????:confused::confused::confused:

D-J
26th Jul 2009, 18:31
aeroplane flight review

waren9
26th Jul 2009, 22:24
Why did the OP see fit to post the same question in 2 different forums?

Fr8dog44
26th Jul 2009, 23:16
According to my 35 year old E-6B, Yes I still know how to use it! Your GS will be 99 knots and your heading will be 83.5 Deg's, if the parameters remain the same.

MakeItHappenCaptain
27th Jul 2009, 05:25
AFR-BFR Same s*it, different name.

Sort of like DoA-CASA, although these days the motto seems to have changed to
"We're not happy unless you're not happy....":}

ForkTailedDrKiller
27th Jul 2009, 06:02
AFR-BFR Same s*it, different name

Is Aeroplane Flight Review correct?

I thought the idea was to reiew the pilot - not the aeroplane!

Dr :8

maverick22
27th Jul 2009, 11:51
CR-2 fits in your pocket if so inclined to keep it there. CR-3 much easier to read and hence more accurate for exams. Having said that, I used my CR-2 for ATPLs and passed fine. Put it on the dash one day though and it didn't come out too good:ouch:

mingalababya
27th Jul 2009, 12:05
Anyone got any advice on the Jeppessen flight computers, in particular the CR2 and CR3???

Which one is best?

The only difference is the size. CR-3 is the bigger version and thus useful for exams. The CR-2 is designed to fit in your front shirt pocket (and remain there for the entire flight :E )

PyroTek
27th Jul 2009, 14:26
Is Aeroplane Flight Review correct?

My latest ATO said "Aircraft Flight Review" - same diff though.
I'm considering getting one of these CR2's... might as well know both worlds and use the easiest one for each calculation, my E6-B is my good friend I'll say!

Tinstaafl
27th Jul 2009, 15:09
I like the CR5 model. It's about a half inch smaller than the CR2 so a little less accurate but the slight reduction in size allows it to fit in a lot more pockets & not just the ones on uniform shirts. Quite accurate enough though - I passed Oz both IR exams (as it was then), Oz SCPL/ATPL exams, US ATPL exam & UK ATPL exams using it.

maverick22
27th Jul 2009, 15:27
My latest ATO said "Aircraft Flight Review" - same diff though.

Sorry to be such a nerd. An aeroplane is a type of aircraft. Just as a helicopter and airship are also types of aircraft. Therefore a fixed wing pilot will do an Aeroplane Flight Review.:8

PyroTek
28th Jul 2009, 15:08
Sorry to be such a nerd. An aeroplane is a type of aircraft. Just as a helicopter and airship are also types of aircraft. Therefore a fixed wing pilot will do an Aeroplane Flight Review.:8

However, are AFR's not required for Helicopters etc.? hence "Aircraft"? - Broadening the term over all religions of aviation?:D