Questions tagged [ultralight]

Questions regarding very lightweight powered aircraft.

Filter by
Sorted by
Tagged with
12
votes
4answers
9k views

Which parts of class E airspace can an ultralight (part 103) fly in without prior ATC authorization?

I'd like to clarify a very specific statement from 14 CFR Part 103: 103.17 OPERATIONS IN CERTAIN AIRSPACE No Person may operate an ultralight vehicle within Class A, Class B, Class C, or Class D ...
11
votes
2answers
495 views

What is the primary reason that the non-towered airports KACV and KTVL have E4 extensions to E2 airspace?

NOTE-- this question is not about why it was desired to protect the airspace that ended up within the E4 "extensions". Rather, this question is about why that was done by designating that airspace as ...
5
votes
1answer
557 views

What classifies as an ultralight vehicle?

I am looking into the possibly of getting my pilots license and I noticed that it says you don't need a license for "ultralight vehicles". What are ultralight vehicles? I am located in the USA, ...
15
votes
5answers
13k views

What is meant by a “congested area of a city/town/settlement” in FAR 103?

FAR 103.15 states: No person may operate an ultralight vehicle over any congested area of a city, town, or settlement, or over any open air assembly of persons. I'm wondering what is meant by "...
8
votes
3answers
9k views

Is an ultralight aircraft allowed to fly near Class B airspace?

May an ultralight vehicle operating under FAR part 103 operate within Class G and E airspace while within the mode C veil surrounding a Class B airport? Quoting directly from Title 14 CFR 91.1 ...
2
votes
1answer
201 views

What are all the US airports where E4 “extensions” change to E2 and become part of a larger E2 “surface area” when the tower closes for the night?

Of all the US airports with part-time control towers and with E4 "extensions", in which cases are the airspace definitions written so that the E4 "extensions" change to E2 and become part of a larger ...
2
votes
3answers
3k views

Is it allowed to launch powered paragliders from national parks?

I'm new to the sport and can't find a written answer. I've been told by local PPG pilots that it is illegal to launch from state/federal parks. I live near Johnson's Beach, Gulf Islands National ...
14
votes
3answers
1k views

What is a biplane propeller and how efficient is it?

Lazair ultralight series II used biplane props to absorb more power from the engine....so my question is what really is a biplane propeller and are they efficient in comparison to a four bladed prop?
3
votes
1answer
177 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?
1
vote
1answer
117 views

What is the maximum takeoff weight allowed for a part 103 ultralight?

What is the max takeoff weight (MTOW) for a part 103 vertical takeoff (VTOL) ultralight? And is the value peak or continuous limit?
19
votes
2answers
5k views

Could I use a powered parachute to fly around New York City?

NYC traffic is so horrendous that it would be pretty convenient to be able to take off with a powered parachute (PPC) from the top of a building or from a park and be able to fly above all the traffic ...
4
votes
1answer
195 views

What are the historical precedents of today's E2 and E4 airspace? (US)

What are the historical precedents of today's E2 and E4 airspace? From what previous airspace classes did these airspaces evolve? How do these precedents help us understand the significance of the ...
3
votes
1answer
715 views

What are the FAA regulations on lighting for ultralight vehicles?

I'm in the process of scoping out a project involving an ultralight vehicle and some Neo pixel LEDs. In the US, there are many regulations for lights on cars. Things like the location on the vehicle, ...
0
votes
1answer
104 views

What indications has the FAA given that phrases like “surface area of Class E airspace designated for an airport” do or don't include E4 “extensions”?

The dashed magenta shape on the sectional chart around KGUP depicts the horizontal extent of the Class-E-to-surface at KGUP. Inside this perimeter, Class E airspace extends all the way down to the ...
2
votes
2answers
524 views

How much lift does the wing attach fitting actually carry?

How do I calculate the lift force that the the bolt that join the wings to the fuselage of a strutted or braced airplane carry? I know in a cantilever airplane,the bolts have to carry all of the lift ...
18
votes
3answers
5k views

What is the rationale behind “One engine - Two propellers” configuration?

I stumbled upon a very unusual Russian amateur built ultralight: One engine, two propellers configuration My first impression is that it adds another useless ...
8
votes
2answers
6k views

What does “clear of clouds” mean in FAA FAR part 103?

In FAR part 103 when they are talking about visibility requirements for flying an ultralight, sometimes instead of giving exact distances, they will just say "clear of clouds". For example: ...
8
votes
3answers
2k views

Why is the tail group of virtually every airplane swept instead of straight?

Even low performance airplanes like ultralights have their tail group (vertical and horizontal stabilizer with rudder and elevator) swept backwards knowing fully well that a straight tail group will ...
4
votes
1answer
223 views

Does a tandem ultralight need flaps on the rear wing if the front wing has flaps?

Does a tandem ultralight need flaps on the rear wing if the front wing has flaps? I understand that most Rutan canards don't have flaps as I was told if the main wing has flaps, the canards need one ...
10
votes
1answer
380 views

In the United States, are ultralights legally considered aircraft?

I sometimes hear it stated that in the United States, ultralight vehicles are not legally considered to be aircraft. For example, Wikipedia used to state: In the United States ultralights are ...
3
votes
1answer
4k views

How to select the most efficient airfoil for low speed flight?

What airfoil (or family) has the highest $C_L/C_D$ ratio at speeds in the $50\:km/h$ range. The use case would be an ultralight with a max speed of $50\:km/h$
1
vote
1answer
253 views

In reference to airspace, what does the FAA mean by “within the lateral boundaries of”? Is this construed to also imply a vertical limit?

Several FARs use the phrase "within the lateral boundaries of" (x airspace). What does the FAA interpret this phrase to mean? Specifically, what is the vertical extent of the airspace encompassed by ...
0
votes
1answer
209 views

May an ultralight vehicle pass directly above KEGE at 9200 MSL at 1600Z with no prior authorization without violating FAR 103.17?

May an ultralight vehicle pass directly above KEGE at 9200 MSL at 1600Z with no prior authorization without violating FAR 103.17? http://vfrmap.com/?type=vfrc&lat=39.643&lon=-106.916&zoom=...