# Weatherly 620

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Weatherly_620
> Markdown URL: https://mediated.wiki/source/Weatherly_620.md
> Source: https://en.wikipedia.org/wiki/Weatherly_620
> Source revision: 1329650827
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

<!-- This article is a part of Wikipedia:WikiProject Aircraft. Please see Wikipedia:WikiProject Aircraft/page content for recommended layout. -->
{{Infobox aircraft
| name                = Weatherly 620
| logo                = 
| logo_size           = 
| image               = Weatherly 620B (VH-WEI) at Bankstown Airport (1).jpg
| alt                 = 
| caption             = A Weatherly 620B in 1998
| long_caption        = 
| other_names         = 
| aircraft_type       = [Agricultural aircraft](/source/Agricultural_aircraft)
| aim                 = 
| outcome             = 
| related             = 
| national_origin     = United States
| manufacturer        = [Weatherly Aircraft Company](/source/Weatherly_Aircraft_Company)
| design_group        = 
| designer            = 
| builder             = 
| issuer              = 
| status              = 
| owners              = 
| primary_user        = 
| more_users          = 
| service             = 
| major_applications  = 
| proposals           = 
| prototypes          = 
| number_built        = 155
| construction_number = 
| civil_registration  = 
| military_serial     = 
| radio_code          = 
| requirement         = 
| aircraft_carried    = 
| flights             = 
| total_hours         = 
| total_distance      = 
| construction_date   = 
| introduction        = 
| retired             = 
| first_flight        = 1979
| initiated           = 
| in_service          = 
| last_flight         = 
| expected            = 
| developed_from      = [Weatherly 201](/source/Weatherly_201)
| variants            = 
| developed_into      = 
| preservation        = 
| fate                = 
| predecessors        = 
| successors          = 
| concluded           = 
}}

The '''Weatherly 620''' is a 1970s [American](/source/United_States) [agricultural monoplane](/source/Agricultural_aircraft) designed and built as an improved variant of the [Weatherly 201](/source/Weatherly_201) by the [Weatherly Aircraft Company](/source/Weatherly_Aircraft_Company) of McClellan, California.<ref name="Janes" />

==Design==
The Weatherley 620 is an all-metal single-seat low-wing cantilever [monoplane](/source/monoplane) with a [conventional landing gear](/source/conventional_landing_gear) with a tailwheel. Examples have been fitted with a [Pratt & Whitney R-985](/source/Pratt_%26_Whitney_R-985) [radial engine](/source/radial_engine), and [PT6A](/source/PT6A) or [TPE331](/source/TPE331) turboprop engine, driving a three-bladed tractor propeller. In the forward [fuselage](/source/fuselage), the aircraft has a either a 355 US gallon hopper or a 320 US gallon hopper that feeds an agricultural dispersal system. Most pilots that fly the weatherly aircraft, prefer the 320 gallon hopper aircraft. <ref name="Janes" />

==Variants==
;Model 620
:1979 initial production variant.
;Model 620A
:1987 production variant with a [Pratt & Whitney R-985](/source/Pratt_%26_Whitney_R-985) radial engine.
;Model 620B
:1992 production variant with a [Pratt & Whitney R-985](/source/Pratt_%26_Whitney_R-985) radial engine.
;Model 620TP
:1980 turboprop variant with a [Pratt & Whitney PT6A-11AG](/source/Pratt_%26_Whitney_PT6).
;Model 620B-TG
:1997 improved turboprop variant to replace the 620TP with a [Honeywell TPE331](/source/Honeywell_TPE331) turboprop.

==Specifications (620BTG)==
thumb|Side view of Weatherly 620B
{{Aircraft specs
|prime units? = kts

|ref=<small>Jane's All The World's Aircraft 2004-05</small> <ref name="Janes" />

|crew=1
|capacity = 355 US Gallons (1344litres) hopper

|length ft=29
|length in=8
|length m=9.04 
|span ft=46
|span in=8
|span m=14.22 
|height ft=9
|height in=6
|height m=2.90 
|wing area sqft=277 
|wing area sqm=23.1 
|empty weight lb=3030 
|empty weight kg=1374 
|max takeoff weight lb=6000 
|max takeoff weight kg=2721 

|eng1 name=[Honeywell TPE331](/source/Honeywell_TPE331)
|eng1 type=turboprop
|eng1 number=1
|eng1 hp=500 
|eng1 kw=373 
|cruise speed kts=122 
|cruise speed mph=140
|cruise speed kmh=226
|never exceed speed kts=153 
|never exceed speed mph=176
|never exceed speed kmh=283
|stall speed kts=62 
|stall speed mph=72
|stall speed kmh=115
|ceiling ft=15000 
|ceiling m=4572 
|climb rate ftmin=1400 
}}

 
{{aircontent
 
|see also=
|related= 
|similar aircraft= 
|lists= 
}}

==References==
===Notes===
<references>

<ref name="Janes">Jackson 2004, p. 801</ref>

</references>

===Bibliography===
{{Refbegin}}
* {{cite book |editor-last= Jackson|editor-first= Paul |title= Jane's All the World's Aircraft 2004-2005|year= 2004|publisher= Jane's Information Group |location=Coulsdon, Surrey, United Kingdom|isbn=0-7106-2614-2}}
{{Refend}}

==External links==
{{commons category|Weatherly 620}}
*[http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/9d1a704a47a8d74286256b35005456d9/$FILE/A26WE.pdf   TYPE CERTIFICATE DATA SHEET NO. A26WE]

Category:1970s United States agricultural aircraft
Category:Single-engined tractor aircraft
Category:Low-wing aircraft
620
Category:Single-engined turboprop aircraft
Category:Aircraft first flown in 1979
Category:Aircraft with conventional landing gear

---
Adapted from the Wikipedia article [Weatherly 620](https://en.wikipedia.org/wiki/Weatherly_620) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Weatherly_620?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.