Delta Interview

[igneousy2]

So does mach increase or decrease with altitude? I thought that it decreased because if you are going mach 1 at 1000 feet you are going much faster than if you are going mach 1 at 36,000 feet. Why are the fellas on the gouge saying mach increases with altitude? TAS is greater with altitude and the speed of sound is lower so are they saying that mach NUMBER increases with altitude even though actual mach decreases?

I think they mean that for a given IAS your mach will increase with altitude. So if you maintain 320knots indicated at 1000 feet and 320knots indicated at 37,000 your mach will be higher.

 

[Oakum_Boy]

I'd like to know how people interviewing at Delta don't know this. There are three different speeds you're interested in:

CAS (IAS more or less)
TAS
Mach number

For a given CAS, an increase in altitude yields both an increase in TAS and Mach number. If you fly a constant Mach number, an increase in altitude yields a decrease in TAS.

 

[wings421]

Hey guys, resurecting an old post (sorry). I have an interview coming up and I am still a bit confused about some of these problems.

Regarding the question about holdong east on the 090 radial. The question asks what the bearing pointer is pointing to before you turn inbound. My interpretation is that if your are on the 090 radial, your bearing is pointing to 270 regardless of wind correction angle. Am I totally wrong on that?

Also, there seem to be a number of questions from the gouge dealing with decent rates and wind correction angles that do not have any speeds. Does the test have similar questions with no speeds, or is that just one of the inconsistencies of the gouge?

Thanks for everyones' info. It has been very helpful.

I haven't been studying the Delta gouge but I think that the question says before turning inbound. I'm sure there is some formula to figure it out based on being 25 miles or so out getting ready to turn inbound. If you were doing a right hand pattern, it should be pointing maybe 265-260 before you turn inbound to join the 090 inbound to 20 DME?

I guess that now I'm as curious as you.

 

[El Duque]

I guess that is one of the things I am confused about. "before turning inbound." Where exactly are you considered to be turning inbound? By what you are saying, it sounds like you are not really heading towards that station, or 'inbound,' until after you pass through a 360 heading on a parallel entry, right? I guess that would make sense. In that case I would agree with you. Your bearing pointer would be something slightly south of a 270 bearing i.e 265 or so. Maybe I am way off on this, but I always thought that once you begin the turn, you are turning inbound.

 

[C-17 Driver]

I guess that is one of the things I am confused about. "before turning inbound." Where exactly are you considered to be turning inbound? By what you are saying, it sounds like you are not really heading towards that station, or 'inbound,' until after you pass through a 360 heading on a parallel entry, right? I guess that would make sense. In that case I would agree with you. Your bearing pointer would be something slightly south of a 270 bearing i.e 265 or so. Maybe I am way off on this, but I always thought that once you begin the turn, you are turning inbound.

You guys are reading way too much into this question. They just want to make sure you draw out your holding pattern correctly. If you are outbound on the 090 radial, that means the Head of the bearing pointer will be on 270. You are "on" the radial. The drift could be 30 degrees, but you are still "on" the radial and the head of the BP will point at the station "right before you turn inbound." It didn't ask what it will be as you are turning inbound or when you finish the outbound turn. It is asking for it "before" you turn inbound. Maybe my simplified military brain is missing something!

Don't get too wrapped around the axle about it. Thankfully, they are multiple choice questions.

On a different note....Anyone have an interview on 5 Sep? If so, PM me and maybe we can compare notes the night prior.

 

[C-17 Driver]

You guys are reading way too much into this question. They just want to make sure you draw out your holding pattern correctly. If you are outbound on the 090 radial, that means the Head of the bearing pointer will be on 270. You are "on" the radial. The drift could be 30 degrees, but you are still "on" the radial and the head of the BP will point at the station "right before you turn inbound." It didn't ask what it will be as you are turning inbound or when you finish the outbound turn. It is asking for it "before" you turn inbound. Maybe my simplified military brain is missing something!

Don't get too wrapped around the axle about it. Thankfully, they are multiple choice questions.

On a different note....Anyone have an interview on 5 Sep? If so, PM me and maybe we can compare notes the night prior.

I just reread my post and realized I pretty much stuck my foot in my mouth and was way off base! I'd blame it on too much drinking but I was quite sober (just a little tired when I wrote it)

I agree w/ El Duque on his previous post. I also think the multiple choice questions should make the answer quite obvious..

Mods...any way to delete my prior post so I can save face!!:0

 

[Killswitch135R]

Radial question

Lots of the answers are incorrect. Has anyone figured out the answer to the one about the bearing pointer going from 5 degrees in front of the wing to 5 degrees behind the wing in 8 minutes? The gouge said there was no answer more than 64 miles, and I think it should be lots more than 64 miles. I copied the gouge stuff into Word and then deleted all the answers. I then went through and figured out what I think are the correct answers. It doesn't look all that tough, but if you go off the gouge answers, you will mess some of them up. Study the topic and know the material and you will feel much more prepared.

360 kts--assume 6 miles per minute, I guess

your traverse 10 radials in 8 minutes--you've travled 48 miles, so 4.8 miles between radials...
At 60 miles each radial equals 1 mile, assuming you're flying an arc
so X over 4.8 = 60 over 1....right???
You're 288 miles away.....which is ironic because you wouldn't be receiving a bearing pointer from that far!