---------------------------------------------------------- Zenith-List Digest Archive --- Total Messages Posted Tue 05/16/06: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:16 AM - CH 640 Cowl (steveadams) 2. 09:32 AM - Re: Zodiac XL Wheel Pants (JAPhillipsGA@aol.com) 3. 09:57 AM - Re: HAVE PLANS - NEED ALUMINUM (Jimmy Mathis) 4. 12:38 PM - Re: Re: HAVE PLANS - NEED ALUMINUM (martyn@flight.co.za) 5. 01:04 PM - Re: Engine choices for CH701 (Craig Moore) ________________________________ Message 1 _____________________________________ Time: 08:16:12 AM PST US Subject: Zenith-List: CH 640 Cowl From: "steveadams" --> Zenith-List message posted by: "steveadams" I have just about 200 hrs of flight time on my CH640. I just wanted to post a quick message about the cowl. The only problem that has developed with my airframe has been a few cracks in the upper cowl. All are along the front, 1 is about 20 cm from the lateral edge, and 2 more are in the center area where there is a cutout for the spinner and starter gear. The ones in the center at this point are supericial, not through the full thickness, and about 1-2 cm long. I think this is because there must be quite a bit of upward flexing of the center of the cowl in flight (maybe my baffling is too airtight). I had already reinforced these areas with some extra layers of fiberglass, but they developed some small cracks anyway. I am going to modify the cowl a bit by adding a connection from the upper to lower cowl around the sides of the spinner/starter gear (basically making seperate inlets on the right and left instead of one gaping hole) to keep the cowl from flexing up in the middle. Cooling has never been an issue so I don't think this will have any significant effect there. Does anyone foresee any other potential problems with doing this?It's not a major problem, but once you are flying it is painful to have to stop, do some repairs and repaint the cowl. On the upside, I guess it will give it a sportier look :) I just thought builders would want to know this is a potential problem, and you should at a minimum reinforce the cowl a bit. Other than the cowl there have been absolutely no problems. This is a great airplane. Happy building. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=34859#34859 ________________________________ Message 2 _____________________________________ Time: 09:32:14 AM PST US From: JAPhillipsGA@aol.com Subject: Re: Zenith-List: Zodiac XL Wheel Pants --> Zenith-List message posted by: JAPhillipsGA@aol.com Tim, I hate to admit it, but probably just for looks. I believe another shape of pants might improve speed, but the ZAC pants are just too broad and fat to do much. FWIW, Bill of Georgia do not archive ________________________________ Message 3 _____________________________________ Time: 09:57:36 AM PST US From: Jimmy Mathis Subject: Zenith-List: RE: HAVE PLANS - NEED ALUMINUM --> Zenith-List message posted by: Jimmy Mathis Hey Martyn: I called Airparts INC and asked if they ship to South Africa and they said YES. They will ship by sea or by air. Their number is 913-831-1780. The web address is www.airpartsinc.com I have dealt with them several times and have had excellent service. Jimmy Mathis 601XL Texas ________________________________ Message 4 _____________________________________ Time: 12:38:09 PM PST US Subject: Re: Zenith-List: RE: HAVE PLANS - NEED ALUMINUM From: martyn@flight.co.za --> Zenith-List message posted by: martyn@flight.co.za Roger Wilco Regards Martyn Ward > --> Zenith-List message posted by: Jimmy Mathis > > Hey Martyn: > > I called Airparts INC and asked if they ship to South > Africa and they said YES. They will ship by sea or by > air. Their number is 913-831-1780. The web address is > > www.airpartsinc.com > > I have dealt with them several times and have had > excellent service. > > > Jimmy Mathis 601XL Texas > > ________________________________ Message 5 _____________________________________ Time: 01:04:19 PM PST US From: Craig Moore Subject: Zenith-List: Re: Engine choices for CH701 --> Zenith-List message posted by: Craig Moore >--> Zenith-List message posted by: JohnDRead@aol.com >I live in Colorado at 7200 feet elevation, I will be >flying off grass. There are many 10,000 foot days >during the Summer. > > Question - which engine would be best for this >application, Jabiru 3300, Jabiru 2200, Rotax 912m, >Rotax 914, O235, turbine? > >Regards, John Read > John, Here is a link to a great review of the 102hp Smart engine in an FK9. It is a 3 cylinder 4 stroke with, fuel injection, turbocharger, dual ignition, optional intercooler. Has great fuel economy too! http://www.ecofly.de/download/TodaysPilot_11_05.pdf They also have and 82hp version with the same configuration, and a 60hp diesel version. Maybe by the time I am ready to build, these will be more readily available. Best regards, Craig Moore 701 builder wannabe __________________________________________________