View source for Arup S-3

<!-- This article is a part of [[Wikipedia:WikiProject Aircraft]]. Please see [[Wikipedia:WikiProject Aircraft/page content]] for recommended layout. -->
{|{{Infobox Aircraft Begin
| name=S-3
| image=
| caption=
}}{{Infobox Aircraft Type
| type=[[Experimental aircraft]]
| national origin=[[United States of America]]
| manufacturer=[[Arup Manufacturing Corporation]]
| designer=Ralph Gaighen,  Cloyd L. Snyder
| first flight=15 July 1934
| introduced=
| retired=
| status=
| primary user=
| more users= <!--Limited to three in total; separate using <br /> -->
| produced= <!--years in production-->
| number built=1
| program cost= <!--Total program cost-->
| unit cost= <!--Incremental or flyaway cost for military or retail price for commercial aircraft-->
| developed from=[[Arup S-2]]
| variants with their own articles=
}}
|}
The '''Arup S-3''' was the third in a series of low aspect ratio aircraft developed by Dr. Snyder of [[South Bend, Indiana]].
==Design and development==
Raoul Hoffman worked to engineer the [[Arup S-2]] with Dr. Snyder. Around 1933 he was diagnosed with [[tuberculosis]] and left the company for the warmer climate of Florida where he developed his own variation, the [[Hoffman Flying Wing]]. He was replaced by Ralph Graigen to develop the next generation of the aircraft.<ref>{{cite journal|journal=Skyways|date=July 1995|page=45}}</ref>
The S-3 featured a straight [[leading edge]] with the [[trailing edge]] tapering back to the rear of the aircraft, giving it a thumbnail like appearance from the top. The aircraft featured a tall [[tricycle landing gear]] with a small tailwheel in case of over-rotation on takeoff. The [[Aircraft fabric covering|fabric covered]] [[fuselage]] was made of welded steel tube with wooden [[wing rib]]s. The S-3 differed from the S-2 in that it included a small rudder and elevator at the rear of the fuselage, rather than placing all of the controls on the low aspect ratio wing. The fuselage was sharp-edged with a less streamlined windshield. The dihedral was inadvertently increased compared to the S-2 due to errors in the wing jigs.<ref name="The ARUP story">{{cite journal|journal=Sport Aviation|date=March 1967|title=The ARUP story}}</ref>
==Operational history==
The S-3 was assigned the number 14147. It flew only once at St.Joe county airport with Glen Doolittle as the test pilot; the aircraft displayed poor performance. Before the second flight signs of sabotage were discovered and the aircraft was put under day and night guard by the backers. The S-3 was destroyed by arson in a hangar fire shortly afterward. Gaighen was fired and Raoul Hoffman was brought back as lead engineer for Arup for the follow-on [[Arup S-4]] which flew successfully with the reused engine from the fire damaged S-3.<ref name="The ARUP story"/><ref>{{cite journal|journal=Skyways|date=July 1995|page=47}}</ref>
==Variants==
*[[Arup S-4]]
<!-- ==Units using this aircraft/Operators (choose)== -->
==Specifications (Arup S-3) ==
{{Aircraft specs
|ref=Skyways and Aerofiles<ref name="Aerofiles Al">{{cite web|url=http://aerofiles.com/_al.html|title=Aerofiles Al - Az|last=Eckland|first=K.O.|date=November 12, 2008 |accessdate=11 December 2011|location=USA}}</ref>
|prime units?=kts<!-- imp or kts first for US aircraft, and UK aircraft pre-metrification, met(ric) first for all others. You MUST choose a format, or no specifications will show -->
<!--
General characteristics
-->
|genhide=
|crew=
|capacity=
|length m=
|length ft=17
|length in=6
|length note=
|span m=
|span ft=22
|span in=
|span note=
|width m=<!-- if applicable -->
|width ft=<!-- if applicable -->
|width in=<!-- if applicable -->
|width note=
|height m=
|height ft=
|height in=
|height note=
|wing area sqm=
|wing area sqft=273
|wing area note=
|aspect ratio=<!-- give where relevant eg sailplanes  -->
|airfoil=
|empty weight kg=
|empty weight lb=
|empty weight note=
|gross weight kg=
|gross weight lb=
|gross weight note=
|fuel capacity=
|more general=
<!--
Powerplant
-->
|eng1 number=1
|eng1 name=[[LeBlond 5DE]]
|eng1 type=5-cyl. air-cooled radial piston engine
|eng1 kw=<!-- prop engines -->
|eng1 hp=70<!-- prop engines -->
|prop blade number=<!-- propeller aircraft -->
|prop name=
|prop dia m=<!-- propeller aircraft -->
|prop dia ft=<!-- propeller aircraft -->
|prop dia in=<!-- propeller aircraft -->
|prop dia note=
<!--
Performance
-->
|perfhide=Y
|max speed kmh=
|max speed mph=
|max speed kts=
|max speed note=
|cruise speed kmh=
|cruise speed mph=
|cruise speed kts=
|cruise speed note=
|stall speed kmh=<!-- aerobatic -->
|stall speed mph=<!-- aerobatic -->
|stall speed kts=
|stall speed note=
|never exceed speed kmh=
|never exceed speed mph=
|never exceed speed kts=
|never exceed speed note=
|range km=
|range miles=
|range nmi=
|range note=
|endurance=<!-- if range unknown -->
|ceiling m=
|ceiling ft=
|ceiling note=
|g limits=<!-- aerobatic -->
|roll rate=<!-- aerobatic -->
|glide ratio=<!-- sailplanes -->
|climb rate ms=
|climb rate ftmin=
|climb rate note=
|time to altitude=
|sink rate ms=<!-- sailplanes -->
|sink rate ftmin=<!-- sailplanes -->
|sink rate note=
|lift to drag=
|wing loading kg/m2=
|wing loading lb/sqft=
|wing loading note=
|power/mass=
|thrust/weight=
|more performance=
}}
<!-- ==See also== -->
{{aircontent
<!-- include as many lines are appropriate. additional lines/entries with carriage return. -->
|see also=
|related=
|similar aircraft=<!-- similar or comparable aircraft -->
|lists=<!-- related lists -->
}}
==References==
{{reflist}}
<!-- ==External links== -->
[[Category:1930s United States experimental aircraft]]
[[Category:Single-engined tractor aircraft]]
[[Category:Aircraft first flown in 1934]]
[[Category:Mid-wing aircraft]]
[[Category:Aircraft flown once]]