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Re: replacement engine

Richard Stubbs All Messages By This Member #12439 开云体育 I think that Aeromomentum engine looks like a fine option. It’s a little heavier than the Rotax 912 I believe but could still work. The thing about the X-Air standard (much preferred over the X-Air F in my view) is that it’s designed to fly relatively slowly so adding bags of power might make it more economical but not necessarily any quicker. For this reason a reliable and less expensive 4 stroke option to the Rotax 582 only is surely worth considering. As Michael Coates once stated, the absolutely best fit for the standard X-Air is the 75Hp Rotax 618. Although not produced any more - you can still find newly rebuilt 618 motors on Barnstormers and several that I know of have gone for well over 1000 hours fault free if set up properly. It’s a peach of an engine. ????????? ? toggle quoted message Show quoted text From: [email protected] [mailto:[email protected]] On Behalf Of Hank Optland Sent: Friday, 29 July 2022 11:12 To: [email protected] Subject: Re: [XAIR] replacement engine ? I wonder if a 90 hp "Viking 90" motor (stated weight 72 kg) or an 85 hp "Aeromomentum AM10" (63 kg) could be considered? ? ? ? ? Get From: [email protected] <[email protected]> on behalf of Jonathan Webb <avia1or01@...> Sent: Friday, July 29, 2022 8:45:13 PM To: [email protected] <[email protected]> Subject: Re: [XAIR] replacement engine ? I have an X-Air F? ( Falcon in the UK ) with Rotax 912 and it works very well.? Performance is no greater than a 2 stroke but much greater reliability. Theoretically it should use less fuel but mine burns around 14 litres an hour. Previous owner said it burnt 12 litres an hour . The difference might be because I fitted heated carb bodies when I bought it to prevent carb ice. If attachments work there is a photo of the engine installation attached.? The Engine mount is special for the 912 and the forward engine struts are shortened. There are some weight concerns. Mine was the development aircraft and has lightweight wheels, floor and originally had a smaller single tank. It now has double tanks ( 55 Litres )? and as I fly alone a long range tank with another 20 litres, so now aircraft endurance is far greater than pilot endurance !! - more than 5 hours. In the UK there are a couple flying with the D-motor which seems an interesting combination.? The only thing I don't like with the 912 is flying with high revs ( cruise 4800-5000 rpm ) which makes for a noisy cockpit although a recent Bose A20 has improved the situation. The D-Motor , like the Jabiru flies with half the revs so would be more comfortable but for me reliability is the No consideration.? I like the D Motor but would want to wait a few years to see how the reliability is before flying with one. Regards, Jonathan On 29/07/2022 10:13, Michael Coates wrote: Too heavy for the X-Air Standard....??? They own the X-Air Airframe as their test bed but cant use it because of the weight etc....???? However it looks promising ! Clive Cunningham wrote on 29/07/2022 5:27 pm: Keep an eye on Radial Motion. 3 cyl air cooled radial engine being made in Australia. Looks like a winner! ? Clive Cunningham K&M HD Motorcycles U2 5-9 Kingston Ave? Richmond? South Australia 5033?? Ph +61 8? 8234 1090? kmmotor@... kmmotorcycles.com.au -- With regards,??? Michael Coates ? AU +61 7 5522 0583 USA +1 213 984 1237 ? ? PIPISTREL AIRCRAFT DEALER OF THE YEAR 2012 Winner of the EAA August Raspet Award 2012 PIPISTREL AIRCRAFT DEALER OF THE YEAR 2017 ? mailto:mcoates@... ? skype name:?? xcomavionics ? Please note: because of the volume of e-mail we are now receiving our replies are done using voice recognition software in an effort to speed up the reply process. Sometimes the voice recognition program inserts silly words or doesn't actually do what it is meant to do.? Occasionally these mistakes get through our quick proofreading of each e-mail sent, so please accept my apologies if the odd mistake gets through. ? Legal Notice: The information contained in this email is confidential and intended only to be read by the person(s) to whom it is addressed. No one is authorized to copy, use, disclose, distribute or rely on this information for any purpose whatsoever. If this communication has been sent to you in error, please email the sender and delete the message. ? "Amateurs practice till they get it right; Professionals practice till they can’t get it wrong." ?

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#12439

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