ULPower UL260i

The ULPower UL260i is a family of aircraft engines, produced by ULPower in Belgium.

UL260i
Type Piston aircraft engine
Manufacturer ULPower
Major applications Micro Aviation Bantam

Design

The UL260i series are all lightweight, four-cylinder, four-stroke, horizontally-opposed, air-cooled, direct drive engine designs that feature FADEC with multipoint fuel injection and dual ignition systems.[1]

Variants
UL260i
Base model, fuel injection, compression ratio of 8.16:1, producing 97 hp (72 kW)[1][2]
UL260iS
Model with a higher compression ratio of 9.10:1, fuel injection, producing 107 hp (80 kW)[3]
UL260iSA
Aerobatic model with a higher compression ratio of 9.10:1, fuel injection, producing 107 hp (80 kW)[4]
UL260iF
Model with a higher compression ratio of 9.10:1, fuel injection, producing 100 hp (75 kW), due to French regulatory requirements.[5]

Applications

Specifications

Data from Tacke[1]

General characteristics

  • Type: Flat-4
  • Bore: 106 mm (4.2 in)
  • Stroke: 74 mm (2.9 in)
  • Displacement: 2,592 cm3 (158.2 cu in)
  • Length: 543 mm (21.4 in)
  • Width: 654 mm (25.7 in)
  • Height: 475 mm (18.7 in)
  • Dry weight: 72 kg (159 lb)

Components

  • Valvetrain: single central camshaft, solid lifters, pushrods, rockers and OHV
  • Fuel system: dual electronic fuel injection
  • Fuel type: Mogas (95 Oct.RON / 91 AKI min.) / AVGAS
  • Oil system: Wet sump
  • Cooling system: Air-cooled

Performance

gollark: Surely you can just pull a particular tag of the container.
gollark: I can come up with a thing to transmit ubqmachine™ details to osmarks.net or whatever which people can embed in their code.
gollark: It's an x86-64 system using debian or something.
gollark: > `import hashlib`Hashlib is still important!> `for entry, ubq323 in {**globals(), **__builtins__, **sys.__dict__, **locals(), CONSTANT: Entry()}.items():`Iterate over a bunch of things. I think only the builtins and globals are actually used.The stuff under here using `blake2s` stuff is actually written to be ridiculously unportable, to hinder analysis. This caused issues when trying to run it, so I had to hackily patch in the `/local` thing a few minutes before the deadline.> `for PyObject in gc.get_objects():`When I found out that you could iterate over all objects ever, this had to be incorporated somehow. This actually just looks for some random `os` function, and when it finds it loads the obfuscated code.> `F, G, H, I = typing(lookup[7]), typing(lookup[8]), __import__("functools"), lambda h, i, *a: F(G(h, i))`This is just a convoluted way to define `enumerate(range))` in one nice function.> `print(len(lookup), lookup[3], typing(lookup[3])) #`This is what actually loads the obfuscated stuff. I think.> `class iｎt(typing(lookup[0])):`Here we subclass `complex`. `complex` is used for 2D coordinates within the thing, so I added some helper methods, such as `__iter__`, allowing unpacking of complex numbers into real and imaginary parts, `abs`, which generates a complex number a+ai, and `ℝ`, which provvides the floored real parts of two things.> `class Mаtrix:`This is where the magic happens. It actually uses unicode homoglyphs again, for purposes.> `self = typing("dab7d4733079c8be454e64192ce9d20a91571da25fc443249fc0be859b227e5d")`> `rows = gc`I forgot what exactly the `typing` call is looking up, but these aren't used for anything but making the fake type annotations work.> `def __init__(rows: self, self: rows):`This slightly nonidiomatic function simply initializes the matrix's internals from the 2D array used for inputs.> `if 1 > (typing(lookup[1]) in dir(self)):`A convoluted way to get whether something has `__iter__` or not.
gollark: If you guess randomly the chance of getting none right is 35%ish.

See also
Related development
Lists
Comparable engines

References
  1. Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, pages 262-263. Flying Pages Europe SARL, 2015. ISSN 1368-485X
  2. ULPower Aero Engines. "UL260i". ulpower.com. Retrieved 21 April 2018.
  3. ULPower Aero Engines. "UL260iS". ulpower.com. Retrieved 21 April 2018.
  4. ULPower Aero Engines. "UL260iSA". ulpower.com. Retrieved 21 April 2018.
  5. ULPower Aero Engines. "UL260iF". ulpower.com. Retrieved 21 April 2018.
  6. ULPower installation, Onex
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