Discussions on Aircraft model
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I've renamed the type /aviation/aircraft_model from "Aircraft" to "Aircraft model"; nothing else about the type has changed -- it always represented the model and not a particular aircraft, it was just confusingly named.
Also, I've created a new type, Aircraft, specifically for individual aircraft.
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Thanks!
Can you fix up the name of the Aircraft saved view to? (ie rename it to Aircraft Model)
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Wacky; I would have thought that would have come along for the ride. I'll have to figure out how to rename the automatically-created type views.
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Silly me; changing the name is easy if you're logged in as a domain administrator.
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Thanks!
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Looking at the Wikipedia article for the Mooney M20
It appears that the The M20TN Acclaim replaced the M20M Bravo in the company's line.
My thoughts are that rather than just a Date for Retired, perhaps we can expand the schema a bit more to allow capturing replacement variants ? or do we already have that modeled in the current schema somewhere that I'm missing ?
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Example:
The Gulfstream G450 has a maximum cruise altitude of 45,000 feet.
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Is "maximum cruise altitude" a better designation, or should we use "service ceiling"?
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Newer FAA CFR shows certifications with the following wording:
Cirrus Design SR22 - Maximum Operating Altitude : The aircraft is limited to 17,500 ft MSL.
I think your mention of "service ceiling" is equal to the words "Maximum Operating Altitude" ?
-Thad
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It's been a long time since I've looked at these things, but I think there was some requirement that at the "service ceiling" a plane should still be able to maintain a certain rate of climb. I guess that was to give some margin over stall. I had our club's Warrior (PA-28-161) up near the published service ceiling, and it was very much like the slow flight demonstrations you give during your check rides.
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I just mistakely typed the China Clipper as an Aircraft before I realized that the type is actually for models of aircraft. Is there a type for instances of an aircraft e.g. the "Enola Gay" ?
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The Spirt of St. Louis has been typed as an Aircraft Model as well. Any progress on a type for instances of an aircraft? Can we get the name of /aviation/aircraft_model changed from 'Aircraft' to 'Aircraft Model' so that people know they're choosing the wrong type?
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+1 To a new aircraft type (== aircraft instance), and renaming aircraft to aircraft model.
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Calling The Spirit of St. Louis an aircraft model isn't such a bad thing - officially it was a "Ryan NYP", but only one was made.
On the other hand, I think maybe there should be a manufacturer/model or type/model heirarchy to make it clearer.
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Each aircraft has several models (e.g. Cessna has 172R, 172Q, 172P etc)
there shuold be a table for the variations or each aircaft will be "new" entry, and a new field called Aircraft brand name will be added (e.g. Cessna is the manufacturer, 172 is the brand name, and R, Q, and P are the model name)
The following fields should be available for the airplains as well:
And most important, a place to add reference (where the data is from) should be added to ALL fields (but this is something freebase should add) as a workaround, a general field called tech data references should be added (a list of strings)
Data from Quest for Performance[46]
General characteristics
- Crew: 1
- Capacity: 3 passengers
- Length: 27 ft 2 in (8.28 m)
- Wingspan: 36 ft 1 in (11.0 m)
- Height: 8 ft 11 in (2.72 m)
- Wing area: 174 ft² (16.2 m²)
- Airfoil: NACA 2412 (modified)
- Empty weight: 1,620 lb (736 kg)
- Useful load: 830 lb (376 kg)
- Max takeoff weight: 2,450 lb (1,113 kg)
- Powerplant: 1× Lycoming IO-360-L2A flat-4 engine, 160 hp (120 kW) at 2,400 rpm
- * Zero-lift drag coefficient: 0.0319
- Drag area: 5.58 ft² (0.52 m²)
- Aspect ratio: 7.32
- Lift-to-drag ratio: 11.6
- Wing loading: 14.1 lb/ft² (68.8 kg/m²)
- Power/mass: 15.3 lb/hp (9.25 kg/kW)
Performance
- Never exceed speed: 163 knots (187 mph, 302 km/h)
- Maximum speed: 123 knots (141 mph, 228 km/h) at sea level
- Cruise speed: 122 knots (140mph, 226 km/h)
- Range: 610 nm (790 mi, 1,272 km) at 55% power at 12,000 ft (3,040 m)
- Service ceiling: 13,500 ft (4,116 m)
- Rate of climb: 720 ft/min (3.7 m/s)
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These are all great ideas. Perhaps someone who has more knowledge of aircraft could jump in? ptomblin, are you still around? Interested?
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I'm not really around much. My personal feeling is that a Cessna 172S doesn't really differ that much from a 172R, and maybe a timeline of the differences would be more appropriate.
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While searching the web for info on the Rutan Voyager, I noticed that weight (dry and loaded) was one of the frequently-referenced stats. It might be useful to include weight as a property of aircraft.
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Here's a Smithsonian page with good aircraft property names. I've excerpted some that would be useful generally.
* * *
Weight:
gross: 4,397 kg (9,695 lb)
empty: 1,021 kg (2,250 lb)
Engines: Teledyne Continental
front: Type O-240, 130 hp
rear: Type IOL-200, 110 hp
Height: 3.1 m (10 ft 4 in)
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