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Engine Hoods

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tonyrenshaw268(at)gmail.c
Guest

Posted: Tue Apr 19, 2011 1:17 am Post subject: Engine Hoods

Gidday,

I am wondering if there is any consensus to a way to open up the lid of the cowl, exposing the engine easily for our birds? To be honest, I am sure a car style bonnet would be the most ideal, and I am wondering if anyone has attempted it??

Reg

Tony Renshaw

Sydney Australia

grahamsingleton(at)btinte
Guest

Posted: Tue Apr 19, 2011 2:05 am Post subject: Engine Hoods

Tony

start from the thought that there is at least 6lb/sq inch pressure inside it, that adds up to quite a load.

You can use hinge (same as a Glasair or RV) down the sides, just pull the hinge pin out to 

release. Then camlocks or southco across the firewall

Graham

From: Tony Renshaw <tonyrenshaw268(at)gmail.com>

To: europa-list(at)matronics.com

Sent: Tuesday, 19 April, 2011 10:13:38

Subject: Europa-List:  Engine Hoods



--> Europa-List message posted by: Tony Renshaw <tonyrenshaw268(at)gmail.com (tonyrenshaw268(at)gmail.com)>



Gidday,

I am wondering if there is any consensus to a way to open up the lid of the cowl, exposing the engine easily for our birds? To be honest, I am sure a car style bonnet would be the most ideal, and I am wondering if anyone has att//www.matronics.com/Navigator?Europa-List" ="http://forums.matronics.com" target="_blank">http://forums.matronics.                    &nbsptronics.com/contribution" target="_blank">http://www.matronics.com/contri================



    

 [quote][b]

tonyrenshaw268(at)gmail.c
Guest

Posted: Tue Apr 19, 2011 2:52 am Post subject: Engine Hoods

Thks Graham,

I reckon that sounds like a good idea. I have found a removeable pin MS20001-5 hinge supplier, using a composite hinge and removable pin. I just think that the curvature of the cowl may prohibit "easy" removal, therefore defeating the purpose. I can't figure something like camlocks to undo the cowls, followed by a similar mech to the bonnet to open conventionally. 

Reg

TonyR. 

On 19/04/2011, at 8:03 PM, GRAHAM SINGLETON wrote:



 	  Quote: 	
		   Tony

 start from the thought that there is at least 6lb/sq inch pressure inside it, 

 that adds up to quite a load.

 You can use hinge (same as a Glasair or RV) down the sides, just pull the hinge 

 pin out to 

 

 release. Then camlocks or southco across the firewall

 Graham

 

 

 

 

 ________________________________

 From: Tony Renshaw <tonyrenshaw268(at)gmail.com>

 To: europa-list(at)matronics.com

 Sent: Tuesday, 19 April, 2011 10:13:38

 Subject: Engine Hoods

 

 

 

 Gidday,

 I am wondering if there is any consensus to a way to open up the lid of the 

 cowl, exposing the engine easily for our birds? To be honest, I am sure a car 

 style bonnet would be the most ideal, and I am wondering if anyone has attempted ========

kheindl(at)msn.com
Guest

Posted: Tue Apr 19, 2011 3:16 am Post subject: Engine Hoods

 I wonder if it would really be a worthwhile project. I once timed the removal/replacement of the top hood, using a manual screwdriver, and no rushing. It takes less than 5 minutes. Compare that to all the other tasks when you want to go flying, and it turns out to be pretty trivial. And you wouldn't want to do this every time.

Karl

 	  Quote: 	
		   Subject: Re: Engine Hoods

 From: tonyrenshaw268(at)gmail.com

 Date: Tue, 19 Apr 2011 20:48:34 +1000

 To: europa-list(at)matronics.com

 --> Europa-List message posted by: Tony Renshaw <tonyrenshaw268(at)gmail.com>

 Thks Graham,

 I reckon that sounds like a good idea. I have found a removeable pin MS20001-5 hinge supplier, using a composite hinge and removable pin. I just think that the curvature of the cowl may prohibit "easy" removal, therefore defeating the purpose. I can't figure something like camlocks to undo the cowls, followed by a similar mech to the bonnet to open conventionally. 

 Reg

 TonyR. 

 On 19/04/2011, at 8:03 PM, GRAHAM SINGLETON wrote:

 > Tony

 > start from the thought that there is at least 6lb/sq inch pressure inside it, 

 > that adds up to quite a load.

 > You can use hinge (same as a Glasair or RV) down the sides, just pull the hinge 

 > pin out to 

 > 

 > release. Then camlocks or southco across the firewall

 > Graham

 > 

 > 

 > 

 > 

 > ________________________________

 > From: Tony Renshaw <tonyrenshaw268(at)gmail.com>

 > To: europa-list(at)matronics.com

 > Sent: Tuesday, 19 April, 2011 10:13:38

 > Subject: Engine Hoods

 > 

 > --> Europa-List message posted by: Tony Renshaw <tonyrenshaw268(at)gmail.com>

 > 

 > Gidday,

 > I am wondering if there is any consensus to a way to open up the lid of the 

 > cowl, exposing the engine easily for our birds? To be honest, I am sure a car 

 > style bonnet would be the most ideal, and I am wondering if anyone has attempted ========

========================

paul.the.aviator(at)gmail
Guest

Posted: Tue Apr 19, 2011 4:57 am Post subject: Engine Hoods

The one upside, for a 914 owner at least is that being able to open the cowl after flying would be great for letting the heat out.  



With that said, I am not about to go modify mine and my experience during the build process is that all the little modifications sure added to the build time!

 

On Tue, Apr 19, 2011 at 6:14 AM, Karl Heindl <kheindl(at)msn.com (kheindl(at)msn.com)> wrote:

 	  Quote: 	
		         I wonder if it would really be a worthwhile project. I once timed the removal/replacement of the top hood, using a manual screwdriver, and no rushing. It takes less than 5 minutes. Compare that to all the other tasks when you want to go flying, and it turns out to be pretty trivial. And you wouldn't want to do this every time. 



Karl

	




 

  [quote][b]

rampil

Joined: 04 May 2007
Posts: 870

Posted: Tue Apr 19, 2011 6:50 am Post subject: Re: Engine Hoods

It is not a difficult project to simply replace the lateral nutplates

with Southco or CamLok quarter turn fasteners. The only minor issue

is that the rivet holes for the nutplates do not fit the new fasteners.

I think the best solution is to fill the old holes and back them with a

long horizontal strip of glass, then back the glass with a long strip

of say 40 thou 6061 an inch high to hold the new rivets.



The nut plates on the fire wall can stay behind, just replacing the lateral

cowl screws cuts the job by more than 2/3.

_________________
Ira N224XS

fklein(at)orcasonline.com
Guest

Posted: Tue Apr 19, 2011 7:44 am Post subject: Engine hoods

On Apr 19, 2011, at 2:13 AM, Tony Renshaw wrote:



 	  Quote: 	
		  --> Europa-List message posted by: Tony Renshaw <tonyrenshaw268(at)gmail.com (tonyrenshaw268(at)gmail.com)>



Gidday,

I am wondering if there is any consensus to a way to open up the lid of the cowl, exposing the engine easily for our birds? To be honest, I am sure a car style bonnet would be the most ideal, and I am wondering if anyone has attempted it??

	


Alex Bowman's XS mono has a proper "bonnet"...I believe it is secured w/ 3 southco fasteners on each side...2 fwd & 1 at aft corner.



What I like about it is that in addition to being able to have a good look at everything, you don't have to worry about placing the top cowl on the tarmac or seeing it blown away in the wind when removed. Note the 2 streamlined surface pivots. I'm thinking about doing something similar but w/ concealed hinges...just thinking.



Fred

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budyerly(at)msn.com
Guest

Posted: Tue Apr 19, 2011 2:18 pm Post subject: Engine Hoods

<?xml:namespace prefix="v" /><?xml:namespace prefix="o" /><![endif]-->  Karl,

 Well put, but with my electric screw gun (non-environmentally correct as it  is not solar) it only takes two minutes.

 To others:

 If I drop a screw or it gets muggered up, I go to the bag and get  another.  Can't do that with cam locks, as the plane requires different  sizes, but they serve their purpose.  I have done it both ways, and I like  it simple with screws.

 If you want truly custom, which is sometimes what we get to do here, get  complex and wonderful.

 Making a car hood to hold shape and the whole cowl only weighing 10 pounds  is quite a task.  (OK, my painter puts on a lot of paint so it's 15.)   A proper car type hood and cowl stiff enough to do the job is going to be a bit  on the cheeky side, but frankly the exercise will consume a lot of time.   But if you have plenty of time, go ahead, just make sure it meets the  structural requirements..  As for hinges, if you move the intakes and get  the sides right you can rework the cowl and make it happen, but again, the  builder will be adding much time for little convenience.  Hinges make a  nice clean side to the cowl.  But after a few years, the tinnermans start  to wear into the paint, and the rivets in the hinges start to wiggle a bit so it  is six of one and half dozen of the other.

  

 As far as access, or even heat dissipation, make the two access holes for  the cooling and oil,  larger and  set the geometry so when opened they  let the heat out after landing so you can check under the hood easily after a  sip of gas and a slug of water while checking the weather, NOTAMS and  filing.  Then it is a warm preflight and takeoff verses a hot  one...

  

 Just trying to keep it simple.

 Remember light airplanes bounce, heavy ones crash.

 Bud

 [quote]   ---

fklein(at)orcasonline.com
Guest

Posted: Tue Apr 19, 2011 5:03 pm Post subject: Engine Hoods

On Apr 19, 2011, at 3:13 PM, Bud Yerly wrote:

 	  Quote: 	
		  Making a car hood to hold shape and the whole cowl only weighing 10 pounds is quite a task.  (OK, my painter puts on a lot of paint so it's 15.) 	




Bud...are you saying the stock Europa cowl, upper plus lower, weighs 10 to 15 pounds?

Hmmmmm...my upper weighs 5.7#, lower weighs about 13# including inlet and exit ducts for the twin rads...all filled and sanded, but no paint...

Fred



 [quote][b]

budyerly(at)msn.com
Guest

Posted: Wed Apr 20, 2011 10:45 am Post subject: Engine Hoods

<?xml:namespace prefix="v" /><?xml:namespace prefix="o" /><![endif]-->  Fred,

 I was using the weight on the shipping document to be honest, I  haven't really weighted it until today.  While waiting for my wife to give  me a ride to the airport, I weighed my cowl with the very scientific scale from  Wal-Mart and it is 8 pounds finished painted and with vinyl graphics.   

  

 I have a lot of glass and fixes to this old cowl as it was one that was  improperly cut (I scrounged everything).  So probably a normal cowl is 5-6  pounds finished.

 Bud

  

  

 ---

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