47 votes
Accepted

Why does the lack of a magneto affect engine RPM?

Firstly, to understand the answer, we need to understand that the Cessna 152's and 172's run a 4 Cylinder, Horizontally-opposed Engine. Each Cylinder has 2 spark plugs, one on the top side of the ...
user avatar
  • 2,021
42 votes

Could this "Wingless Dodo" fly in real life?

There is an old saying "If you put a big enough engine on it, you can make anything fly." The Lockheed Starfighter was a classic example of that. With its short stubby wings it is basically a guided ...
user avatar
  • 4,806
33 votes
Accepted

C-152 carb heat on before landing in hot weather?

You should always pull the carb heat when throttling back no matter the conditions for 3 reasons: Ice forms from moisture (duh!), and there's much more moisture in hot tropical air than cold arctic ...
user avatar
  • 50.3k
24 votes

Why does the Cessna 152/172 nose wheel turn only when the aircraft is moving?

Because the nose wheel is only attached to the rudder pedals indirectly, through some springs that transfer the displacement of the pedals into a force that is applied to the position of the wheel. ...
user avatar
19 votes
Accepted

Which is safer? The Piper Tomahawk or the Cessna 152?

From the Wikipedia article on the Tomahawk: Safety record: According to the Aircraft Owners and Pilots Association Air Safety Foundation, which published a Safety Highlight report on the Piper ...
user avatar
  • 5,561
19 votes

C-152 carb heat on before landing in hot weather?

Carb heat use is not related to OAT, it's related to moisture and how it can turn to ice in the carb, causing the engine to stop. Carb ice can form at any outside air temperature, which is why you ...
user avatar
  • 11.4k
17 votes
Accepted

How can I mount my iPhone 6 in the cockpit to record my flights?

UPDATE 9/4/2017 I'm thrilled this post has been so helpful for so many people. As such, I wanted to update it with more details and more current links in case people are interested. Enjoy! You ...
user avatar
  • 1,715
16 votes

What determines the best glide speed?

Basically, the faster you go, the more lift and drag a wing will produce. These two values are not proportional, though. When speeding up, the amount of drag produced is higher than the extra amount ...
user avatar
16 votes

Should I have carb heat on for landing in a C152?

The approach and landing phase are the times when carburetor icing is MOST likely to occur. Once a carburetor has ice, it may take a period of time for full application of carburetor heat to clear ...
user avatar
  • 17.4k
16 votes
Accepted

Could this "Wingless Dodo" fly in real life?

The minimum speed of a Cessna 152 is 43 knots while the maximum speed is 110 knots. If the wing area is reduced to one half of its original size, and we accelerate to twice the minimum speed, the ...
user avatar
13 votes

Why is the magneto drop check done at 1700 RPM?

According to this article from the New Zealand CAA: The particular rpm setting at which the check is done is not very important for the purposes of the check, but other engine handling ...
user avatar
  • 70.4k
12 votes
Accepted

What is the maximum crosswind limit for a C150/2 aircraft?

Section 4 of the C152 POH lists the demonstrated crosswind component as 12KIAS. The 150 had a few variants so finding a published number is a bit more tricky. The Aerobat's are sometimes listed as ...
user avatar
  • 25.8k
12 votes

Why is the magneto drop check done at 1700 RPM?

It's not a magic number and, truth be told, the runup mag check is not a very good check of ignition system health. It's more of a "good'nuf" holdover from an era before multiprobe engine monitors. ...
user avatar
  • 5,898
11 votes

How can I take off in a straight line if the runway isn't visible ahead?

Thats what the compass is for. Continue to fly runway heading according to the compass & heading indicator. While you may not be able to see the runway, you may have other markers. Even a ...
user avatar
  • 28.5k
11 votes
Accepted

What flaps position should be used for taking off from a wet runway?

The POH for a 152 lists the flap settings for takeoff as between 0° and 10°. It makes no specific mention of take off from a wet runway, however you could follow the same procedures for a soft/...
user avatar
  • 25.8k
11 votes

C-152 carb heat on before landing in hot weather?

You have mentioned OAT, but remember there are 2 variables for potential icing - the other being Dew Point. You (roughly) 85F OAT could easily fall into Serious Icing at glide power for a wide range ...
user avatar
  • 25.8k
11 votes
Accepted

Can I do an alternator check at idle in a C152?

The problem is the light might come on on its own at idle, which is normal. The warning light comes on when the system voltage is below 12.5 volts on a 14 volt system, and 25 volts on a 28 volt system....
user avatar
  • 108k
11 votes

Why does the Cessna 152/172 nose wheel turn only when the aircraft is moving?

I'm not a pilot, nor have I ever been in a C172, but I'm going to go out on a limb here and answer from a logical physics point of view and say the answer is that it's because the nose-wheel steering ...
user avatar
  • 15.1k
10 votes

How should wake turbulence from aircraft on the ground be avoided during landing?

Wake turbulnce occurs when an aircraft is creating lift. Since, the airliner is on the ground, there is no wake turbulence. If you are worried about jet blast from the airliner holding short between ...
user avatar
  • 11.2k
10 votes

What is that pitot-like device under the left wing of the Cessna 152?

It's the fuel tank vent. It prevents forming a vacuum in the gas tank as it's drained, which would prevent further fuel flow to the engine.
user avatar
9 votes
Accepted

Long pole on the tail of a Cessna, what could it be?

What you describe does not match any banner tow rig I am familiar with, and I have towed banners. What it sounds like is a magnetometer, which might be on a survey aircraft. They can be on a boom (...
user avatar
  • 17.4k
9 votes

Could this "Wingless Dodo" fly in real life?

This depends on if you modify the wing or not. If you are asking the question: If you chop 3/4 of each wing off will a plane still fly? The answer is more or less no. The wings simply won’t ...
user avatar
  • 96.3k
8 votes
Accepted

How can I take off in a straight line if the runway isn't visible ahead?

Generally speaking you continue your climb after rotation although this will depend on the runway, runway conditions and airport procedures. Soft Field Take Off: In some cases if you are leaving ...
user avatar
  • 96.3k
8 votes
Accepted

What is my BHP if I open full throttle and how is it controlled?

Rated BHP is measured at sea-level on a standard day. For the Cessna 152 I'm guessing you have an O235-L2 which is rated at 110HP @ 2550 RPM. Now to understand how mixture affects the power produced ...
user avatar
  • 35.2k
8 votes

What determines the best glide speed?

The most important factors for the best glide speed are the aircraft's wing loading, the air density, the wing's aspect ratio, and the aerodynamic quality of the aircraft. The aircraft must create ...
user avatar
8 votes
Accepted

How can I correctly calculate fuel for a Cessna 152?

The short answer is: Yes, your calculation is reasonable. Fuel consumption values are not an exact science, they are average values and rounded in many cases or based on pilot experience. Using ...
user avatar
  • 15.5k
8 votes
Accepted

Does full nose up trim yield best glide in Cessna 172/152 for a given load?

That ground instructor is giving you bad information. You can not make a blanket statement like "full nose up trim" and expect it to be valid for any and all situations. You are correct that the best ...
user avatar
  • 32.4k
7 votes

Where can I find the correct POH for my Cessna 152?

Strictly speaking the POH/AFM is specific to your airframe as it generally contains the weight and balance information which will be unique to your airframe as it is equipped. Thus you should always ...
user avatar
  • 96.3k
7 votes

Why does the lack of a magneto affect engine RPM?

Assuming that one knows how engines work, one can explain it this way as well: Two spark plugs that fire simultaneously provide two spark locations that are physically apart from each other where the ...
user avatar
  • 71

Only top scored, non community-wiki answers of a minimum length are eligible