Questions tagged [multi-engine]

Aircraft equipped with more than one engine.

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3
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2answers
240 views

Are run-ups required for multiengine piston aircraft?

Are run-ups required or advisable on multiengine piston aircraft?
3
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1answer
688 views

Rotation direction for adjacent propellers, how do different arrangements compare?

(YouTube) The Airbus A400M uses counter-rotating pairs where the blades meet moving downward (if there is a better description, tell me please). I played the video frame-by-frame to make sure it ...
3
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1answer
1k views

What are the requirements for a PPL to upgrade from SEL to MEL?

Reading the requirements for MEL it is confusing which things must be done in a multi-engine, and which things carry over from SEL. If I already have SEL do I need to do a cross country in a multi-...
3
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1answer
214 views

if your Seneca weight is 4000 pounds , and you have 800m visibility, would you take off? [closed]

An examiner asked me if your Seneca weight is 4000 pounds , and you have 800m visibility, would you take off ? I said by law the visibility is ok but still I would not because if we get an engine ...
3
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1answer
336 views

Is there any legal way to fly an inline twin-engine aircraft with a single-engine certificate?

Is there any legal way to fly an inline twin-engine aircraft with only a single-engine endorsement? For example, if it's an ultralight or amateur built? I understand Rutan's Defiant was an inline ...
3
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0answers
87 views

Requirements for multi-engine rating

In a facebook group I stumbled over this nice little picture: Also there was a discussion about the type rating of this plane, especially if it classifies as a multi-engine plane. It is a Colomban ...
2
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2answers
1k views

In a Vmc demo, why is it important to lose 1 knot per second?

I got asked two questions on my checkride: Why is it important to lose 1 knot per second (approximately) in a Vmc Demo? How do we know we're losing 1 knot per second? My answer to question 1 would ...
2
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4answers
1k views

How does setting takeoff flaps improve aircraft performance?

A study guide I recently found indicates that Vmc and aircraft performance improve with takeoff flaps set. The Vmc improvement makes sense but the performance improvement does not. At a basic level, ...
2
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2answers
318 views

Does transport-type certification account for engine separation and its possible effect on hydraulic lines?

This question is inspired by the United Airlines Flight 328 where the No. 2 engine is damaged. Some multi-engine aircraft are design to withstand the detachment of an engine while some are not. Boeing ...
2
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1answer
986 views

How to calculate optimal prop diameter, pitch, torque and power coefficient given required thrust?

this is my first post here, so bear with me if this isn't the right place. I'm coming here from Stack Overflow, and this seemed to be the most relevant Stack Exchange for my question. So, I'm ...
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2answers
209 views

How do different training paths to multi-engine rating compare?

I am going to be initiating my private pilot license shortly and wanted some feedback and comments with regards to utilizing single engine (minimum) and multi-engine to obtain my multi-engine rating ...
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3answers
1k views

Can an aeroplane ever be so far away from an airport that it cannot land? [duplicate]

Hypothetically, if an aeroplane with two engines is flying over the ocean and is far away from land, is it not quite likely (but still not very likely at all), that one engine fails and it cannot get ...
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2answers
197 views

Does counter-rotating propellers on multi engine airplanes have critical engine?

I read from most of the article and books that counter-rotating propellers multi engine airplanes do not have critical engine, but it just happened to my friend who did his Commercial Multi Engine ...
1
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2answers
388 views

Why aren’t multiengine general-aviation aircraft required to be capable of sustained single-engine flight?

While perusing the See How it Flies website, I came across this alarming statement regarding multiengine general-aviation aircraft: You must not allow yourself to think that just because airliners ...
1
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1answer
283 views

What would happen if multi engines operated symmetrically?

What would happen if a multi engine operated symmetrically? So if one engine were to rotate counter-clockwise and the other clockwise. What are the advantages and downsides to this?
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1answer
491 views

Do multi engines face the torque effect?

Do multi engines face the torque effect? What about jets?
1
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1answer
599 views

Is there a difference in aerodynamic efficiency between single engine and twin engine airplanes?

I've learned a lot of great information about aviation on this website. One insight I learned from a poster here is that, all else equal, for every doubling of engine power that you give an airplane, ...
1
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1answer
117 views

How to improve engine-out handling on a multi-engined aircraft?

Hypothetically, if I wanted to create a multi-engine airplane with the best single-engine handling characteristics/lowest Vmc, would moving the vertical stabilizer far back be beneficial (even if it ...
1
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1answer
1k views

What's the difference between the Multi Engine Instrument Rating and Instrument Rating in Canada?

Are the requirements for the Multi Engine Instrument Rating the same as Instrument Rating in Canada or is there a separate exam for each of them? Thanks!
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2answers
1k views

Why should a Piper Seneca not take off after an engine failure below 100MPH?

In the Seneca (PA34-200) AFM, in the ENGINE FAILURE DURING TAKEOFF section, it is noted that if engine failures occurs during takeoff ground roll and 100 MPH has not been attained, the pilot must ...
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0answers
103 views

Would throttle steering of a forward-swept-winged aircraft be possible?

Fortunately (or perhaps unfortunately, given the number of crashes that had to occur for us to figure it out), the use of throttle manipulation to control an airliner with disabled primary flight ...
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0answers
50 views

Is it possible to swap RR trent 900 engines to GP 7200 for existing A380 air frame? [duplicate]

If an A380 was originally equiped with RR trent 900 engines, but decided to switch to GP 7200 for any reason, would this be possible? Has this kind of engine swap (different manufacturer engine swap) ...
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2answers
733 views

Why do some multi-engine aircraft have accelerate-go distance in their performance charts and some don’t?

I'm curious about why some airplanes have accelerate-stop distance (ASD) and accelerate-go distance (AGD) in their performance charts and some don’t include that. Does anyone know why?
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1answer
262 views

Why does Vmca decrease with increasing altitude?

A question from a mock MEP class rating test: Many thanks for your help.
0
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1answer
387 views

What is the correct go-around procedure in a PA-44?

I wanted some advice on a procedural-type question. In the PA-44 (Piper Seminole) go-around procedure, it is listed as follows: MIXTURES ............................................FULL RICH ...

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