Zenith701801-List Digest Archive

Sun 03/02/14


Total Messages Posted: 2



Today's Message Index:
----------------------
 
     1. 05:13 AM - Re: 701SP Bubble doors (Clive Richards)
     2. 06:53 AM - Re: 701SP Bubble doors (MacDonald Doug)
 
 
 


Message 1


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    Time: 05:13:35 AM PST US
    From: "Clive Richards" <s.clive.richards@homecall.co.uk>
    Subject: Re: 701SP Bubble doors
    Thanks for your replys However the reported problem was not with the latches. The report from the pilot says The aircraft was performing gentle manoeuvers at 100 mph when the pilot noted that both cabin doors were bulging into the slipstream & almost instantly the left door fractured and departed the airframe. These were the latest type bubble doors with a composite frame. Just enquiring if anyone else flying with these have had any problems or are happy with them, as I have seen no reports on this list. Clive ----- Original Message ----- From: Gary Gower To: zenith701801-list@matronics.com Sent: Sunday, March 02, 2014 5:47 AM Subject: Re: Zenith701801-List: 701SP Bubble doors With more than 5 years (cant remember now) flying my 701 (about 300 hrs) and giving lots of rides... A few of them even without the doors. I dont see any problem with the latching system of the 701 doors... As in all aircraft: The Pilot (Captain) is responsible that the doors are correctly closed and the passengers seat belted and advised (Sit down, bucke up, dont touch, dont yell, dont complain:-) Before every flight. The big first diferences from driving and flying is the planning and the check list(s)... I tell the parents of Young Eagles that learning to fly makes responsible boys. Gary Gower. On Saturday, March 1, 2014 3:57 PM, MacDonald Doug <dougsnash@yahoo.com> wrote: If you are worried about the 701 doors coming off in flight I would recommend contacting Zenith and getting the latch kit for the 750. The 750 door is a bit larger and has three latch points as opposed to the one on the 701. Doug M CH-701 from scratch On Saturday, March 1, 2014 2:51:12 PM, Clive Richards <s.clive.richards@homecall.co.uk> wrote: Hi List I see from a accident report in UK that a set of bubble doors broke up in flight, is this an isolated incident or have I missed other reports? as we have a set for the plane we are building but may now be banned from fitting. Clive do not archive om/Navigator?Zenith701801-List" target="_blank" rel="nofollow">http://wt; http://www.matronics.com/contri============== http://www.matro===================


    Message 2


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    Time: 06:53:49 AM PST US
    From: MacDonald Doug <dougsnash@yahoo.com>
    Subject: Re: 701SP Bubble doors
    The only way that I have heard of the bubble doors failing in flight is if the latch pops and-one opens up into the slipstream.- That is why I sug gested supplementary latches as a potential solution (at least one which mi ght pacify the UK authorities).- =0A=0AThe bubble shape of the door makes it act like an airfoil in flight and it is common for the doors to flex ou twards a bit at the back edge.- depending on how much material was trimme d from the fiberglass frame during installation, it is possible that the do or flexed enough for the main-latch bar to lose contact with the doorfram e and the door pop open.- In the slipstream at 100 mph the door could eas ily be ripped from the hinge or otherwise broken.- The pressure change fr om one door popping could explain why the second door opened as well.- Wh ile 100 mph doesn't sound like much, the VNE of the 701 is only 110 so real ly the plane was at the top end of its performance envelope.=0A=0AAll of th is, of course,-is idle speculation on my part.- All I know for sure is after about 240 hours on my plane the only issue I have had with my bubble doors has been the need for weather stripping as it gets pretty chilly here in Canada in January.=0A=0ADoug M=0A=0A=0A=0AOn Sunday, March 2, 2014 7:20 :18 AM, Clive Richards <s.clive.richards@homecall.co.uk> wrote:=0A =0AThan ks for your replys However the reported problem =0Awas not with the latches . =0AThe report from the pilot says The aircraft was =0Aperforming gentle m anoeuvers at 100 mph when the pilot noted that both cabin =0Adoors were bul ging into the slipstream & almost instantly the left door =0Afractured and departed the airframe. =0A-These were the latest type-bubble doors =0Aw ith a composite frame. =0A- =0AJust enquiring if anyone else flying with these =0Ahave had any problems or are happy with them,-as I have seen no reports on =0Athis list. =0AClive =0A----- Original Message ----- =0A>From : Gary Gower =0A>To: zenith701801-list@matronics.com =0A>Sent: Sunday, Ma rch 02, 2014 5:47 =0AAM =0A>Subject: Re: Zenith701801-List: 701SP Bubble d oors =0A>=0A> =0A>With more than 5 years (cant remember now) flying my- 701- (about 300 hrs) and giving lots of rides... A few of them even with out the doors.- =0A>I dont see any problem with the latching system of th e 701 doors...- =0A>=0A>As in all aircraft: The Pilot (Captain) is respon sible that the doors =0A are correctly closed and the passengers seat belt ed and advised (Sit down, =0A bucke up, dont touch, dont yell, dont compla in:-)- Before every =0A flight.=0A>=0A>The big first diferences from dri ving and flying is the =0A planning and the check list(s)...- I tell the parents of Young Eagles =0A that learning to fly makes responsible boys. =0A>Gary Gower.=0A>=0A>=0A>=0A>=0A>On Saturday, March 1, 2014 3:57 PM, Mac Donald Doug <dougsnash@yahoo.com> wrote:=0A> =0A>If you are worried about t he 701 doors coming off in flight I would recommend contacting Zenith and getting the latch kit for the 750.- The 750 door is a bit larger and has three latch points as opposed to the one on the 701. =0A>=0A> =0A>Doug M =0A>CH-701 from scratch =0A>=0A>=0A>=0A>On Saturday, March 1, 2014 2:51:12 PM, Clive Richards <s.clive.richards@homecall.co.uk> wrote:=0A> =0A> =0A>H i List =0A>I see from a accident report in UK that a set of bubble doors b roke up in flight, is this an isolated incident or have I missed other rep orts? as we have a set-for the-plane we are building but may now-be banned from fitting. =0A>Clive =0A>- =0A>do not archive=0A>om/Navigator?Z enith701801-List" target="_blank" rel="nofollow">http://wt; http://foru ms.matronics.com/=0A>=0A>=0A>http://www.matronics.com/Navigator?Zenith7018 ==0A>=0A>=0A>href="http://www.matronics.com/Navigator?Zenith701801-List ">http://www.matronics.com/Navigator?Zenith701801-Listhref="http://forums .matronics.com">http://forums.matronics.com=0Ahref="http://www.matronics. =======




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