- Design and development
- Variants
- Specifications (IS-29D2)
- Notes
- Further reading
| name=IS-29, IS-31, and IS-33 | image=IS 29D2.jpeg | caption=IS-29D2 }}{{Infobox Aircraft Type | type=Club-class Sailplane | national origin=Romania | manufacturer=ICA | designer=Iosif Șilimon | 1970}} | introduced= | retired= | status= | primary user= | more users= | produced= | number built=>200 | variants with their own articles=
}} |
The ICA IS-29 was a sailplane built in Romania in the 1970s. The prefix IS comes from Iosif Șilimon, the Romanian IAR (Industria Aeronautică Română) aeronautical engineer who designed it. Design and developmentThe 15-metre (49 feet) single-seat variant of the IS-28 series, the IS-29D2 single-seater has retractable gear, camber-changing flaps and Hütter type airbrakes on the upper wing surface only. The T-tail has a fixed stabilizer and elevator. The –29D model is of all metal construction while the earlier –29B has wooden wings. Developments include 19 metre (62 ft) -29E2 and 20 m (66 ft) -29E3 versions and a flapless, fixed gear 16.5-metre (54 feet) ‘club’ model -29G. The IS-29 was also produced in a motorglider version, designated the IS-29EM. This shared the low-set wings and three-point undercarriage of the IS-28M2, and the new wings of the IS-28MA. Variants- IS-29
- IS-29B - wooden wings of 15-metre span
- IS-29D
- IS-29D2
- IS-29D2 Club - Club-class version of IS-29D2
- IS-29E - open class version with ballast tanks
- IS-29E2 - version with 19-metre wings
- IS-29E3 - version with 20-metre wings
- IS-29EM - motorglider version
- IS-29G - Club-class version with 16.5-metre wings
- IS-31 - IS-29 with 20-metre wings and linked flaps and ailerons
- IS-33 - IS-29 with tanks for 150 kg (300 lb) of water ballast
Specifications (IS-29D2){{Aircraft specs
|ref=Jane's All the World's Aircraft 1988-89[1][2]
|prime units?=met
|genhide=
|crew=1
|capacity=
|length m=7.3
|length ft=
|length in=
|length note=
|span m=15
|span ft=
|span in=
|span note=
|height m=1.68
|height ft=
|height in=
|height note=
|wing area sqm=10.4
|wing area sqft=
|wing area note=
|aspect ratio=21.6
|airfoil=root:Wortmann FX 61-163, tip:Wortmann FX 60-126/1
|empty weight kg=240
|empty weight lb=
|empty weight note=
|gross weight kg=
|gross weight lb=
|gross weight note=
|max takeoff weight kg=360
|max takeoff weight lb=
|max takeoff weight note=
|more general=
|perfhide=
|stall speed kmh=65
|stall speed mph=
|stall speed kts=
|stall speed note= flaps down
|never exceed speed kmh=225
|never exceed speed mph=
|never exceed speed kts=
|never exceed speed note=in smooth air
- Max rough air speed: {{convert|172|kph|kn mph|abbr=on}}
- Max aero-tow speed: {{convert|140|kph|kn mph|abbr=on}}
- Max winch-launch speed: {{convert|130|kph|kn mph|abbr=on}}
|g limits=+5.2 -2.65
|glide ratio=37- Best glide speed: {{convert|93|kph|kn mph|abbr=on}}
|sink rate ms=0.65
|sink rate ftmin=
|sink rate note=- Minimum sink speed: {{convert|78|kph|kn mph|abbr=on}}
|lift to drag=
|wing loading kg/m2=34.62
|wing loading lb/sqft=
|wing loading note=
|more performance=
|avionics=
}}{{aircontent
|see also=
|related=
|similar aircraft=
|lists=
}}Notes1. ^{{cite book |title=Jane's All the World's Aircraft 1988-89 |year=1988 |publisher=Jane's Information Group |location=London |isbn=0-7106-0867-5 |editor=John W.R. Taylor|page=639}}
2. ^{{cite web|title=ICA IS-29D|url=http://www.j2mcl-planeurs.net/dbj2mcl/planeurs-machines/planeur-fiche_0int.php?code=3504|accessdate=17 January 2014}}
Further reading- Soaring Society of America
- {{cite book |last= Taylor |first= Michael J. H. |title=Jane's Encyclopedia of Aviation |year=1989 |publisher=Studio Editions |location=London |page=528 }}
- {{cite book |last= Hardy |first= Michael |title=Gliders and Sailplanes of the World |year=1982 |publisher=Ian Allan |location=Shepperton |pages=54–55 }}
- {{cite book |last= Coates |first= Andrew |title=Jane's World Sailplanes and Motor Gliders |year=1978 |publisher=MacDonald and Jane's |location=London |page=124 }}
- {{cite book |last= Simpson |first= R. W. |title=Airlife's General Aviation |year=1995 |publisher=Airlife Publishing |location=Shrewsbury |page= 342}}
- {{cite book |title=Jane's All the World's Aircraft 1977-78 |publisher=Jane's Yearbooks |location=London |page=608 }}
{{ICA aircraft}}{{IAR_Aircraft}} 3 : Romanian sailplanes 1970–1979|ICA aircraft|Glider aircraft |