Amateur built aircraft are not type certified. These requirements do not apply.
On Mon, Jul 9, 2018 at 8:26 AM, Kayak via KRnet <email@example.com> wrote: > I looked into this and a motor glider must have certain specs to qualify. > > IIRC, wing span to gross weight. However, the sonex page states that > tyhis may not apply to experimental category, and certainly a 27ft > wingspan on a KR1 would fly more like a glider. Especially if equipped > with a full feathering prop for example. > > Here it is: > > https://www.sonexaircraft.com/aircraft-certification/ > > > Definition of Motorglider or Powered Sailplane > > Sonex Aircraft, LLC accepts the formal definition of Powered > Sailplanes for Type Certificated Aircraft from both the United States > and the European Aviation Authorities. While it is not formally > defined that an Aircraft Registered in the Experimental Category must > meet these same criteria, any aircraft which does meet the criteria is > an indisputable "Motorglider" or "Powered Sailplane." The language in > both the U.S. and the European documents are nearly identical and the > portion of the documents which apply to this definition as follows: > > > > United States Department of Transportation, Federal Aviation Administration > Advisory Circular AC 21-17a, dated 10 February 1993 > > 7. ACCEPTABLE CRITERIA. > b. Additional Criteria for Powered Gliders. > (1) Powered fixed wing gliders may be type certificated under > Section 21.17(b) if: > (i) The number of occupants does not exceed two; > (ii) Maximum weight does not exceed 850 kg (1874 pounds); and > (iii) The maximum weight to wing span squared (w/b2) does not > exceed 3.0 kg/M2 (0.62 lb./ft.2). > NOTE: These criteria originated from JAR-22. > > Joint Aviation Authorities > JAR-22 Amendment 7, dated 1 September 2003 > > JAR 22.1 Applicability > (a) This JAR-22 prescribes minimum airworthiness standards for the > issue of type certificates, and changes to those certificates, for > sailplanes and powered sailplanes in the utility U and aerobatic A > categories: > (1) Sailplanes the maximum weight of which does not exceed 750 kg: > (2) Single engine (spark- or compression-ignition) powered > sailplanes the design value W/b2 (weight to span2) of which is not > greater than 3(W[kg], b[m]) and the maximum weight of which does not > exceed 850 kg: and > (3) Sailplanes and powered sailplanes the number of occupants of > which does not exceed two. > > _______________________________________________ > Search the KRnet Archives at https://www.mail-archive.com/ > firstname.lastname@example.org/. > Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options. > To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org > _______________________________________________ Search the KRnet Archives at https://email@example.com/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org