Questions tagged [sailplane]

Use with [glider] for sailplanes: a type of glider intended for soaring and designed with conventional aerodynamic control surfaces, else use [glider] only.

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How to prevent dizziness when thermalling in the back seat?

I recently started learning to fly sailplanes. I am usually quite resistant against airsickness, both when flying commercially as well as flying in the front seat of a sailplane (either when the ...
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3 votes
1 answer
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What are the three different altitudes shown in the Perlan II?

The Perlan II glider has two altitude indicators and an altimeter on the navi screen, each showing different altitudes: How is each of the altimeters different? One indicator certainly shows MSL and ...
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17 votes
1 answer
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Are there any gliders that can fly over the Himalayas?

Do gliders (sailplanes) use ridge and wave lift in the Himalayas to go to extreme altitudes, possibly above Everest's peak?
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9 votes
3 answers
556 views

Why don't [most] sailplanes use whole-airplane / ballistic parachutes?

My understanding is that sailplanes usually have the pilots wear the parachute on their back, requiring the pilot to bail out of the aircraft before they can use the parachute. Given the maturity of ...
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1 vote
1 answer
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Do the soaring and/or ballooning communities in the US recommend 123.5 as the preferred frequency for air-to-air and air-to-ground use?

Does the soaring community (e.g. the Soaring Society of America) or the ballooning community in the US recommend 123.5 as the preferred frequency for air-to-air and air-to-ground use by glider pilots ...
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2 votes
1 answer
273 views

Does the FAA or FCC recommend 123.5 as the preferred frequency for air-to-air and air-to-ground use by glider pilots or balloon pilots?

Does the FAA or FCC recommend 123.5 as the preferred frequency for air-to-air and air-to-ground use by glider pilots or balloon pilots speaking to other glider or balloon pilots or ground support crew,...
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15 votes
5 answers
6k views

Why are 3- or 4-seat gliders so rare?

Sailplanes capable of climbing in rising air (not troop transports, which can only descend after the towrope releases) have one or two seats. I know of only one type with more, the Schweizer SGS 2-32 ...
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1 vote
1 answer
121 views

Could the Perlan II glider be used for nearspace tourism?

I asked the same question about the SR-71 Blackbird, and I'm also curious about the Perlan II sailplane which travelled above 70,000 ft, and is planned to be flown to 90,000 ft, if it could be used ...
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12 votes
2 answers
3k views

Is it feasible to circumnavigate the Earth in a sailplane?

Would it be feasible and survivable to circumnavigate the Earth in a glider or sailplane without propulsion and without landing until the circumnavigation is completed, when you'd return to the same ...
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  • 617
9 votes
2 answers
3k views

Why do sailplanes have such large tails?

Since a sailplane is focused on performance - what with tricky laminar flow airfoils and all. Eo why this Instead of this It looks to me like that long tail is needed to balance the cockpit. Buy ...
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2 votes
2 answers
385 views

Do the rules used in modern soaring competitions forbid gyroscopic flight instruments, or forbid the use of AHRS-driven attitude displays, etc?

In the past, the rules for soaring competitions in the US and many other countries have not permitted gliders (sailplanes) to have working gyroscopic instruments installed, to prevent pilots from ...
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0 votes
1 answer
207 views

Is it fairly common for student glider pilots to have wing tip strikes, especially in gusty cross wind conditions?

Is it fairly common for student glider pilots to have wing tip strikes, especially in gusty cross wind conditions? I understand gliders are landed level, slow down and then the wing drops onto a wing ...
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3 votes
1 answer
181 views

How much altitude can a glider gain only from losing speed?

Say we have a glider flying near its top speed. If pilot decides to "trade speed for altitude" how much can it climb before hitting stall speed? Assuming pilot will use most effective climb ...
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  • 131
5 votes
1 answer
259 views

Would all these three things have the exact same effect on the flight duration of a glider?

Consider a glider trimmed to fly at some given angle-of-attack, gliding in smooth air (no thermal convection, ridge lift, wave lift, etc.). If air density is somehow kept exactly constant in all ...
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1 vote
1 answer
250 views

Is the time spent flying in a Sailplane concidered a valid flight hour for a LAPL / PPL license?

I live in the Netherlands. In order to get a Light aircraft pilot licence (LAPL) license 30 flight hours are demanded, A private pilot licence (PPL) requires to have 45 flight hours. flying in a ...
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-1 votes
1 answer
633 views

How safe are sail planes? [closed]

I think sailplanes have to be pretty safe. Because if it falls it will gain speed, which will be converted to lift. So unless you do something stupid sailplanes can't just fall out of air. Am I ...
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1 vote
1 answer
784 views

What are the takeoff and landing distances of motor gliders?

I'm doing some estimations of weight and thrust loading for a college project, and in the formula below the landing distance is not a variable, but should be estimated using similar aircraft and usual ...
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16 votes
2 answers
3k views

Is there an abnormal condition that could have caused this fatal accident involving a stall?

In 2009, a Grob 103 glider stalled and crashed at Richmond Field, Michigan, killing the passenger but not the pilot. (NTSB accident report: CEN09LA353) The accident occurred after a failed winch ...
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1 vote
2 answers
544 views

How to deal with turbulence while flying glider? (Cautions in applying rudder)

I just watched video explaining how the American Airline Flight 587 crashed It led me to think about glider flying. The cause of that crash was that the first officer ...
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2 votes
2 answers
757 views

What should I look for in weather reports in order to pick a day for glider flying?

I understand weather can change unexpectedly, and local sky condition (e.g. cloud types) can't be predicted, but if I want to fly glider at a specific location, say, some time next week, and use ...
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  • 367
15 votes
6 answers
9k views

What happens if only rudder is applied in a turn without ailerons? Do the two have to be applied together all the time?

Fresh newbie in glider flying. I was told the joystick (aileron) and the pedal (rudder) should always be applied together when making a turn. My question is, what happens if I only pedals the rudder ...
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11 votes
6 answers
6k views

What is the difference between a glider and a sailplane?

The words "glider" and "sailplane" seem to refer to similar or the same type of aircraft. In particular, the Wikipedia articles "Glider (aircraft)" and "Glider (sailplane)" seem to be describing the ...
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13 votes
3 answers
2k views

Do thermals stop rising when clouds are formed?

Glider pilots know that one indication of thermal lift is the formation of cumulus-type clouds. My question is: Does the rising air (that lifted the moisture to form the the cloud) stop rising after ...
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8 votes
1 answer
923 views

What PPL routes are available with gliding experience?

I'm an early solo glider pilot, with the long term goal of also obtaining a PPL (not a LAPL(A)). I am planning to do this after I have obtained at least my bronze badge, which I aspire to within the ...
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3 votes
1 answer
208 views

Can a kite take advantage of crosswinds to gain speed? [closed]

In a form off a kite can wind be redirected like a sail boat in any direction? Can cross winds around a jet stream be helpful in speed in such a design?
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18 votes
2 answers
2k views

When is a sailplane a sailplane?

A simple question that I could not find an answer to: When is a sailplane a sailplane (from a regulatory point of view), especially a powered one of the TMG (touring motor glider) variety? EASA has ...
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