whittney guthrie. history & purpose john thorpe designed the cherokee to compete with the cessna...
TRANSCRIPT
![Page 1: Whittney Guthrie. History & Purpose John Thorpe designed the Cherokee to compete with the Cessna 172 (1962) Arrow came later (1967) to compete with Mooney](https://reader030.vdocuments.net/reader030/viewer/2022032705/56649daa5503460f94a9825e/html5/thumbnails/1.jpg)
Piper ArrowWhittney Guthrie
![Page 2: Whittney Guthrie. History & Purpose John Thorpe designed the Cherokee to compete with the Cessna 172 (1962) Arrow came later (1967) to compete with Mooney](https://reader030.vdocuments.net/reader030/viewer/2022032705/56649daa5503460f94a9825e/html5/thumbnails/2.jpg)
History & PurposeJohn Thorpe designed the Cherokee to compete
with the Cessna 172 (1962)
Arrow came later (1967) to compete with Mooney
Shares an airframe with the Cherokee for economics & students can easily transition into the retractable gear
Base price in 1967: $16,900.00Base price in 2012: $414,900.00
![Page 3: Whittney Guthrie. History & Purpose John Thorpe designed the Cherokee to compete with the Cessna 172 (1962) Arrow came later (1967) to compete with Mooney](https://reader030.vdocuments.net/reader030/viewer/2022032705/56649daa5503460f94a9825e/html5/thumbnails/3.jpg)
Brief Overview4 passenger, all metal, single engine, low wing
Retractable gear: Tricycle
200 hp IO-360
2 blade constant speed propeller
BEW: 1890lbs | Max takeoff: 2750lbs
![Page 4: Whittney Guthrie. History & Purpose John Thorpe designed the Cherokee to compete with the Cessna 172 (1962) Arrow came later (1967) to compete with Mooney](https://reader030.vdocuments.net/reader030/viewer/2022032705/56649daa5503460f94a9825e/html5/thumbnails/4.jpg)
FuselageLength: 27’
Width: 3’ 6”
Height: 3’ 11”
Nowhere near the fineness ratio of 3
Single door located on the passenger side
![Page 5: Whittney Guthrie. History & Purpose John Thorpe designed the Cherokee to compete with the Cessna 172 (1962) Arrow came later (1967) to compete with Mooney](https://reader030.vdocuments.net/reader030/viewer/2022032705/56649daa5503460f94a9825e/html5/thumbnails/5.jpg)
WingSpan: 35’ 5”
Average chord: 4’ 4”
Aspect ratio: 8.23 (Relatively low)
Area: 170 sq. ft
Semi-tapered: Good stall & slow flight
NACA: 652-415
Wing loading: 16.18lbs per sq. ft
![Page 6: Whittney Guthrie. History & Purpose John Thorpe designed the Cherokee to compete with the Cessna 172 (1962) Arrow came later (1967) to compete with Mooney](https://reader030.vdocuments.net/reader030/viewer/2022032705/56649daa5503460f94a9825e/html5/thumbnails/6.jpg)
EmpennageStandard vertical
stabilizer with rudder
Stabilator: Because of absence of downwash from wings
Anti-servo tab: Prevents over controlling
![Page 7: Whittney Guthrie. History & Purpose John Thorpe designed the Cherokee to compete with the Cessna 172 (1962) Arrow came later (1967) to compete with Mooney](https://reader030.vdocuments.net/reader030/viewer/2022032705/56649daa5503460f94a9825e/html5/thumbnails/7.jpg)
EngineIO-360: Injected/Opposed/4 cylinder/361 cu. In. (5.9lt.)
200 hp: Doesn’t require a high performance endorsement
Compression ratio: 8.5:1
Air cooled
Direct drive
8qt max/2qt min
Power loading: 13.75hp per lb
![Page 8: Whittney Guthrie. History & Purpose John Thorpe designed the Cherokee to compete with the Cessna 172 (1962) Arrow came later (1967) to compete with Mooney](https://reader030.vdocuments.net/reader030/viewer/2022032705/56649daa5503460f94a9825e/html5/thumbnails/8.jpg)
Landing GearTricycle
Retractable
Held up by hydraulic
pressure
But what if it fails? Simple…
![Page 9: Whittney Guthrie. History & Purpose John Thorpe designed the Cherokee to compete with the Cessna 172 (1962) Arrow came later (1967) to compete with Mooney](https://reader030.vdocuments.net/reader030/viewer/2022032705/56649daa5503460f94a9825e/html5/thumbnails/9.jpg)
References http://www.what2fly.com/secure/planemodels/2821277.jpg
http://www.pilotfriend.com/aircraft%20performance/Piper/17.htm
http://www.piper.com/Company/Publications/SL%200576.pdf
http://www.lycoming.com/images/engine_series_360.jpg
http://www.multiplyleadership.com/tag/aileron/page/2/
http://www.rcgroups.com/forums/showthread.php?t=1209115
http://www.youtube.com/watch?v=lUlV-8MXm4k