Definition of complex airplane?

[minitour]

It's actually a very useful tool.

If you are operating under part 121, a VFR on top clearence allows you to descend below the MEA (oddly part 91 and part 135 operators are not allowed)

Sooo, if you're coming in over some big mountains in and you want to descend more than the MEA allows, VFR on top lets you do that.

You're coming into a non-radar airport, there's another plane departing on hte airway you're arriving on. Center won't let you descend thouugh the departing plane's altitude. If you are cleared VFR on top, you can descend at your own discretion.

If you're not in radar contact, you can't get a direct off airways clearence .... unless you're VFR on top.

huh....well how about that shtuff...

Thanks! Ya learn something new every day.

-mini

 

[milflyboy]

Apparently the definition of a complex airplane is one having a variable-pitch propeller, flaps, and retractable landing gear...

I am sure jets are condsidered complex even though they don't have variable-pitch propellers right? Or does the variable inlet guide vanes count ;o)

 

[nosehair]

I am sure jets are condsidered complex even though they don't have variable-pitch propellers right?

This comes from the same mind-set as those who think having a multi-engine rating also qualifies you to fly single-engines.

There are things about jets that prop pilots don't know, and, believe it or not, there are things about props that jet pilots don't know.

That's why this business is so much fun! There is neve an end of things to be learned.

 

[milflyboy]

This comes from the same mind-set as those who think having a multi-engine rating also qualifies you to fly single-engines.

There are things about jets that prop pilots don't know, and, believe it or not, there are things about props that jet pilots don't know.

That's why this business is so much fun! There is neve an end of things to be learned.

I totally agree. I took my ATP in a Piper Aztec. Before that I had only flown Jets (except for 10 hours in a single engine prop) all those handles and the stall characteristics took some getting used to.

I am actually serious when I ask: Is the complex label only used about props or are Jets included?

 

[JAFI]

Milflyboy, I think you are not versed with civie regulations so if you read 61.31 e. you will find your answer. If you do not have a copy handy, here is a link:

http://ecfr.gpoaccess.gov/cgi/t/text/text-idx?&c=ecfr&tpl=/ecfrbrowse/Title14/14tab_02.tpl
I think the key to remember is that when this reg was written many years ago civilian pilots were not moving from jets to props but instead, J3 cubs to Bonanazas and Piper Arrows. IMHO I think the reason was to insure the pilot of a fixed pitch prop, fixed gear, and no flap aircraft had some training and sign off to be able to handle the "complex" piston powered aircraft.

JAFI

 

[milflyboy]

Yes I do have the regs, but I still don't think they answer the question. They give the definition of Complex like it has been done by the original poster, but for logging purposes in a logbook would you log jet as complex? According to the definition you wouldn't, but does that make any sense?

 

[JAFI]

A jet is a "complex" aircraft but not for the requirements of part 61.31

BUT for you to be legal to fly a "complex airplane" under 61.31, you need a sign off by a flight instructor. The reg defines what a complex airplane is for the purpose of 61.31 and it includes a controlable pitch propeller, so no, a jet is not complex for the requirement of part 61.31. To be PIC of a jet (FAA wise) you need a type rating which is more training than just a CFI sign off.

Again think the transition from J3 cub to Piper Arrow.

A twin Otter is a twin turboprop aircraft. It is not complex because it does not have retractable gear, but it does have controllable prop and flaps. A Jet is not complex (for the requirement of 61.31) because it does not have a controlable prop.

For the logging part, you can log any jet time as jet time. but in regard to 61.31 it is not complex time.

If you want to go further, a high performance aircraft (according to 61.31) is an aircraft with more than 200 horsepower. So a jet is not a high performance aircraft (in regard to 61.31) because a jet's power is measured in pounds of thrust, not horsepower.

To fly a jet aircraft you do not need a complex sign off or a high performance sign off (you do need a type rating). To fly a Piper Arrow 201 hp aircraft you need both.

In the logbook world complex means what is in 61.31. A Boeing 767 is not a complex aircraft but a DC6 is.

I'm not sure how to explain this any better.

JAFI

 

[milflyboy]

"If you want to go further, a high performance aircraft (according to 61.31) is an aircraft with more than 200 horsepower. So a jet is not a high performance aircraft (in regard to 61.31) because a jet's power is measured in pounds of thrust, not horsepower."

But you can calculate the horse power equivalent at a given speed, altitude etc. Are you not logging it as high performance?

"(you do need a type rating)."
Not for my jet


"In the logbook world complex means what is in 61.31. A Boeing 767 is not a complex aircraft but a DC6 is."

That answers my question - Thanks !

 

[JAFI]

"But you can calculate the horse power equivalent at a given speed, altitude etc. Are you not logging it as high performance?"

You can calculate jet thrust into inches of Hg also but that does not mean you can log it as high performance. Again according to 61.31.

Complex time is mostly for light aircraft and insurance purposes. It means you are slightly more qualified than a C-172 pilot.

JAFI

 

[A Squared]

JAFI,


I gotta side with Milfboy on this one. The fact that a jet engine is customarily rated in thrust, doesn't mean that it doesn't have horsepower. I can assure you that any jet engine flying on a certificated aircraft has more than 200 horsepower. 61.31 specifies "an airplane with an engine of more than 200 horsepower" it doesn't say "rated at more than 200 horsepower" or anything of that nature. you say this is "Again according to 61.31.", but there is nothing in 61.31 which supports this. the regulation says "an engine of more than 200 horsepower" and without a doubt, the engine on the lowliest citation is capable of producing much more than 200 horsepower.