Nina7

1-Tas is 80kts,the wind correction angle is +19 and headwind component is 20kts.What is the ground speed ?

2-True course is 055,wind 310/25.variation 6W and aircraft is flying with a true airspeed of 113 kts.What is the magnetic course ?

3-What is the difference between the latitude of the point A and the point B, which are located on following parallels of latitude:
A:15dgr 54` 30"N
B:10dgr 33` 30"S

Thank you,Nina

PerfInit

If you have access to an E6B and a competent instructor nearby, these nav problems should present minimal difficulty for you.

Nina7

Hi Perf !

Thank you for your answer.My flight instructor on holiday and i cant ask him.I would be really happy if you can help me for these questions.

Adlerdriver

I'll give you some direction and you can try it from there. I'm assuming you have some understanding of how to use a navigation calculator like an E6B.

1- You know the TAS value in the direction of the heading you're holding to maintain course (heading is 19 degrees more than the desired course, i.e. You're crabbing 19 degrees right). In order to answer the question, you need the value of your ground speed component in the direction of your course. You already know the wind component (headwind component) in the opposite direction along that course.

2- You need to know if the wind information is true or magnetic. If it's from Atis, tower or some other source while airborne, it's magnetic. Bottom line is make sure your course and wind information are both the same (either magnetic or true) to start out. Calculate your course using the winds given along with your true airspeed. If you did it with true course and winds, then you need to apply the variation to your answer (in this case, since you add West variation (subtract East) add 6 degrees of variation to get magnetic heading). If your winds were already magnetic, you could have applied the variation correction to your true course of 055 and gotten 061 magnetic course. Calculate the course that way and your answer is already your magnetic course.

3- If I understand the question correctly, they're just asking how far apart the two points are in latitude. In other words how many degrees in north/south distance separate them. North latitudes are measured as degrees above the equator and South latitudes are measured in degrees below the equator. So, if you can determine how far away point A is from a known reference line.....like the equator and do the same for point B, you can add those two degree amounts to get the total answer.

Nina7

We have just started to Navigation and my flight instructure got holiday so i can not tell that i really have control of it.I ask the answers because that way i can try it fond these answers by myself because if i would find wrong answer when i calculate then i can figure out that is my answer right or not ! So please clear the answer for me that i keep try to find the way by myself.Regards,Nina

Adlerdriver

OK.
1 - TAS along your magnetic course is 75.6 knots. With 20 knots of headwind component, your ground speed is 55.6 knots.

2 - I think this question is sort of a trick question to see if you're paying attention. It says the true course is 055. Course is what you wan to fly. The only difference between true course and magnetic course is the magnetic variation. So, add 6 degrees of west variation to your true course and you get a magnetic course of 061.

3 - This is just simple math. Point A distance from equator in degrees plus point B distance from equator in degrees (since they are on opposite sides of the equator). They already give you both numbers. Just add them together. 15 54'30" + 10 33'30" = 26 28' 00"

NMuir

I highly recommend downloading Sporty's E6B app for your iPad, it is great!

say again

What answers did you come up with? If we see what you did then we can help you, instead of just giving you the answer. Are there any other instructors available to help while your is away?

Nina7

Nevermind anymore because it looks that maybe there are not many people who knows the answer.Im student at small local club and there is only one instructor.

I need the answers because i wanted to find the way to reach the results.If i would have the right answers and when i try to solve the question,if i get different result than the right answer then i was planning to keep trying until i reach the right answer but i see that there is noone to solve this questions !?.

Maybe its better to find a question with answer that by this way i can practise on question otherwise noone doesnt help.

say again

We know the answer, as someone answered above. You should really have someone show you the proper way to get the answer with the proper tools. A better attitude also goes a long ways....