Linked Questions

12 votes
5 answers
13k 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 ...
rmaddy's user avatar
  • 313
8 votes
2 answers
13k views

What is the difference between Marginal VFR (MVFR) and Special VFR (SVFR)?

I would like to know the difference between marginal VFR (MVFR) and Special VFR (SVFR), particularly when flying in the US airspace. What does each of them mean exactly?
Francesco C's user avatar
  • 1,527
9 votes
2 answers
4k views

May aerobatics be performed over a controlled airport without getting a waiver?

CFR 14 Part 91.303 states: Aerobatic flight. No person may operate an aircraft in aerobatic flight-- (a) Over any congested area of a city, town, or settlement; (b) Over an open air assembly of ...
rmaddy's user avatar
  • 313
1 vote
2 answers
1k views

What does "1000ft above" mean in the context of VFR flight minimums?

There are a bunch of VFR flight minimums. My question here is the follows: Lets say one of the minimums is '1000 feet above'. Does that mean. A. The flight should be 1000 feet above clouds? B. The ...
Jesh Kundem's user avatar
4 votes
3 answers
1k views

Does an SVFR clearance extend to Echo surface extensions?

Sec. 91.157 Special VFR weather minimums. (a) Except as provided in appendix D, section 3, of this part, special VFR operations may be conducted under the weather minimums and requirements of this ...
user avatar
1 vote
4 answers
521 views

When did this content first appear in the "Airspace" entry of the "Legend" section of the Airport/ Facilities directory?

When did language like NOTE: AIRSPACE SVC TIMES INCLUDE ALL ASSOCIATED ARRIVAL EXTENSIONS. Surface area arrival extensions for instrument approach procedures become part of the primary core surface ...
quiet flyer's user avatar
  • 22.6k
4 votes
1 answer
2k views

Does FAR 91.155c apply to class E surface extensions?

Federal Aviation Regulation (FAR) 91.155 says under (c): Except as provided in §91.157, no person may operate an aircraft beneath the ceiling under Visual Flight Rules (VFR) within the lateral ...
user avatar
10 votes
2 answers
943 views

What is the primary reason that the non-towered airports ACV, TVL, SGU, BIH, and SIT/PASI 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 ...
quiet flyer's user avatar
  • 22.6k
2 votes
1 answer
2k 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 ...
quiet flyer's user avatar
  • 22.6k
5 votes
2 answers
280 views

Why does the surface-level Class E airspace at SIT/PASI (Sitka Alaska) extend so far to the northwest?

The August 1992 Final Rule "Terminal Airspace Reconfiguration" (page 38963, Federal Register Volume 57 No 167, August 27 1992) (link to pdf of entire issue opening to this page) stated that ...
quiet flyer's user avatar
  • 22.6k
4 votes
1 answer
304 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 ...
quiet flyer's user avatar
  • 22.6k
0 votes
2 answers
636 views

In the US, how does the distinction between E2 and E3/E4 airspace affect pilots?

In the US, practically speaking, how does the distinction between the E2 and E3/E4 subtypes of Class E airspace affect pilots?
quiet flyer's user avatar
  • 22.6k
2 votes
1 answer
443 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 ...
quiet flyer's user avatar
  • 22.6k
3 votes
1 answer
215 views

In the US, can airspace simultaneously be E2 and E4? What happens at KSTC to the airspace in the dashed magenta boundary when the tower closes?

In the US, can the same airspace simultaneously be E2 and E4? Consider the case of KSTC -- St. Cloud Regional Airport, MN. http://vfrmap.com/?type=vfrc&lat=45.546&lon=-94.059&zoom=10 On ...
quiet flyer's user avatar
  • 22.6k
1 vote
2 answers
167 views

Why do NY ARTCC Standard Operation Procedures have different altitude limits than the NY Class B airspace?

The NY Class B airspace is defined, officially, as seen in this document, which can be found in the VFR Class B Graphics in the FAA website. In this graphic (and in the corresponding shapefile, Class ...
Vector Zita's user avatar
  • 1,853

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