---------------------------------------------------------- Kitfox-List Digest Archive --- Total Messages Posted Wed 01/15/14: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:33 PM - Re: Re: Ballast in front for models 2 & 3 582 engines (James Shumaker) ________________________________ Message 1 _____________________________________ Time: 08:33:24 PM PST US From: James Shumaker Subject: Re: Kitfox-List: Re: Ballast in front for models 2 & 3 582 engines The feeling of being tail heavy does not mean anything if your CG is not co rrect.- The trim speed on the model 3 is set with the horizontal stabilat or position.- If the CG is within the envelope then the Stabilator incide nce can be set for pitch trim at cruise.- When that is set then you may f eel the plane become more tail heavy when you add a passenger....that is it will fly hands off at a slower speed with two in the plane than with one.. ..depending on the weight distribution of the passenger.- I have found th at small passengers with cushions behind them do not change the trim much. - Heavy passengers generally make the plane fly a little slower with the CG slightly further aft.- =0A=0AAll that being said, it is better to move the battery forward than to add weight.=0A=0AJim Shumaker=0AModel 3- 120 0 hours=0ARotax 912ul- (nose heavy)=0A=0A=0A_____________________________ ___=0A- From: Mike Chaney =0ATo: "kitfox-list@matron ics.com" =0ASent: Tuesday, January 14, 2014 6:0 8 AM=0ASubject: Re: Kitfox-List: Re: Ballast in front for models 2 & 3 582 engines=0A =0A=0A=0AMichel=0A=0AWhen I had a 582 attached to the front of my Mod. IV I added some weight.- I put lead shot in a two inch PVC pipe a nd then glued two end caps to contain the shot.- I then attached the pipe to the cabin side of the firewall.=0AOn a side note.- From what I hear a bout melting lead you need to be careful about the fumes produced from the melting process.- =0A=0AMike=0A1996 Kitfox IV/Jabiru=0A=0A=0A=0A=0AOn Tue sday, January 14, 2014 4:12 AM, Michael Laundy wro te:=0A =0AI suggest you have the aircraft accurately weighed so you can ch eck the C of G is within limits. In my MK3 the battery is just aft of the e ngine bulkhead, the C of G is nicely within limits although I do find I run out of up elevator approaching the stall or when trying to do a 3 point la nding.=0A=0AAlso on my mk 3 the angle of incidence on the horizontal stabil iser is adjustable, you may be able to adjust that on your aircraft to make it feel less tail heavy provided the C of G is within limits.=0A=0AMike La undy=0A=0AMk3 Rotax 582 -Cornwall UK=0A=0A=0A=0AOn Tuesday, 14 January 20 14, 9:08, Michel wrote:=0A =0A--> Kitfox-List message p osted by: "Michel" =0A>=0A>In my humble opinion, when=0A considering the CoG of a Kitfox, the most important thing is that, in case of elevator failure, the aircraft=0A climbs at full throttle and descent at idle throttle.=0A>=0A>Next, can you do a 3-points landing without difficul ties? After the 582, I installed a Jabiru on my Kitfox 3 and that added wei ght forward. I couldn't get the tailwheel to touch the ground first when at stall speed. I then moved the battery from the bulkhead (standard place, I think, for the model 3) to, behind the seat. I still had difficulties to l and 3-point. I then gap sealed the elevator and not it works.=0A>=0A>Any le ad ballast in an aircraft seems to me like a poor idea. I am sure the CoG c an be placed in a better place by other means.=0A>=0A>Cheers,=0A>Michel=0A> =0A>--------=0A>Kitfox 3 - Jabiru 2200=0A>=0A>=0A>=0A>=0A>Read this topic o nline here:=0A>=0A>http://forums.matronics.com/viewtopic.php?p=416883#416 883=0A>=0A>=0A>=0A>=0A>=0Ahttp://www.matronics.com/Navigator?Kitfox-List=0A ============= ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message kitfox-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Kitfox-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/kitfox-list Browse Digests http://www.matronics.com/digest/kitfox-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.