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Old Dec 19, 2002, 07:12 AM
Drago
Guest
n/a Posts
P-39 nose gear door

Hi guys,

I'm about to start building Top Flite P-39 Airacobra with retracts and
everything, and am having trouble figuring out how to do nose gear door
mechanism. Any suggestion (preferably from someone who had already built it)
would be greatly appreciated.

Seems to me that there is no much room for any elaborate mechanism inside
the nose of P-39, so it would have to be pretty simple to work well.

I saw something (nose gear door) at these nice pages
(http://www.wingsontheweb.com/vhangar.../oct24-97.html), made by guy who
scratch built Dornier 335, but must admit I am not sure I could build
something like that without detailed plans of the mechanism.

Thanks in advance!


Drago




Old Dec 19, 2002, 08:12 AM
CurtD
Guest
n/a Posts
Re: P-39 nose gear door

SonicTronics makes a nice kit that works great for gear doors. Here's the
link:
http://sonictronics.evisionsite.com/Hinges.html

It's at the bottom of the page. The kit comes with full instructions on how
to use it.

"Drago" <smaug@bug.hr> wrote in message news:atscld$6l55$1@as201.hinet.hr...
> Hi guys,
>
> I'm about to start building Top Flite P-39 Airacobra with retracts and
> everything, and am having trouble figuring out how to do nose gear door
> mechanism. Any suggestion (preferably from someone who had already built

it)
> would be greatly appreciated.
>
> Seems to me that there is no much room for any elaborate mechanism inside
> the nose of P-39, so it would have to be pretty simple to work well.
>
> I saw something (nose gear door) at these nice pages
> (http://www.wingsontheweb.com/vhangar.../oct24-97.html), made by guy

who
> scratch built Dornier 335, but must admit I am not sure I could build
> something like that without detailed plans of the mechanism.
>
> Thanks in advance!
>
>
> Drago
>
>
>
>



Old Dec 19, 2002, 08:32 AM
Drago
Guest
n/a Posts
Re: P-39 nose gear door

Thanks a lot - plenty of other nifty thingies on their pages too..


Drago





"CurtD" <not_here@notnow.com> wrote in message
news:atsgj3$gr7$1@slb5.atl.mindspring.net...
> SonicTronics makes a nice kit that works great for gear doors. Here's the
> link:
> http://sonictronics.evisionsite.com/Hinges.html
>
> It's at the bottom of the page. The kit comes with full instructions on

how
> to use it.
>
> "Drago" <smaug@bug.hr> wrote in message

news:atscld$6l55$1@as201.hinet.hr...
> > Hi guys,
> >
> > I'm about to start building Top Flite P-39 Airacobra with retracts and
> > everything, and am having trouble figuring out how to do nose gear door
> > mechanism. Any suggestion (preferably from someone who had already built

> it)
> > would be greatly appreciated.
> >
> > Seems to me that there is no much room for any elaborate mechanism

inside
> > the nose of P-39, so it would have to be pretty simple to work well.
> >
> > I saw something (nose gear door) at these nice pages
> > (http://www.wingsontheweb.com/vhangar.../oct24-97.html), made by guy

> who
> > scratch built Dornier 335, but must admit I am not sure I could build
> > something like that without detailed plans of the mechanism.
> >
> > Thanks in advance!
> >
> >
> > Drago
> >
> >
> >
> >

>
>



Old Dec 19, 2002, 11:12 AM
Chris Spierings
Guest
n/a Posts
Re: P-39 nose gear door

If its the gear door itself that you are trying to fabricate I"d suggest you
build the fuse with the gear retracted. When you have everthing all shaped and
smooth iron on some monokote or similar covering. Then get yourself some 6
ounce glass cloth and some .75 ounce cloth. Lay up about 4 layers of the 6
ounce making sure the weave is 45 degrees off the previous layer then finally
add a layer of .75 cloth. Let all that cure and then pop it off. This is done
only over the area you expect to need a door for.

Pull the covering off the fuse and continue with your building and finishing.
When you ahve the retract in and the opening set up the way you want lay the
glass piece you made over the open and trace the size to fit the hole you've
made. Cut the door to fit mount with hinges like Sonictronics offers, follow
the directions about keeping the pivot points lined up and you'll have a pretty
nice set up.

Wish I could claim credit for this idea but I learned it from the Dave Platt
video.

Chris

Drago wrote:

> Hi guys,
>
> I'm about to start building Top Flite P-39 Airacobra with retracts and
> everything, and am having trouble figuring out how to do nose gear door
> mechanism. Any suggestion (preferably from someone who had already built it)
> would be greatly appreciated.
>
> Seems to me that there is no much room for any elaborate mechanism inside
> the nose of P-39, so it would have to be pretty simple to work well.
>
> I saw something (nose gear door) at these nice pages
> (http://www.wingsontheweb.com/vhangar.../oct24-97.html), made by guy who
> scratch built Dornier 335, but must admit I am not sure I could build
> something like that without detailed plans of the mechanism.
>
> Thanks in advance!
>
> Drago


Old Dec 19, 2002, 02:52 PM
Drago
Guest
n/a Posts
Re: P-39 nose gear door

Chris,

great advice - I was thinking of just cutting the balsa door out of the fuse
once I get the nose gear into place, but it probably wouldn't hold the shape
once cut out from the fuse - your method seems much better.

I am a little apprehensive about glassing since I'm alergic to epoxy, but I
guess an overall, latex gloves and mask should do the job.

Thanks,

Drago




"Chris Spierings" <spierings@removemailbag.com> wrote in message
news:3E01EDBB.CB0DDC89@removemailbag.com...
> If its the gear door itself that you are trying to fabricate I"d suggest

you
> build the fuse with the gear retracted. When you have everthing all

shaped and
> smooth iron on some monokote or similar covering. Then get yourself some

6
> ounce glass cloth and some .75 ounce cloth. Lay up about 4 layers of the

6
> ounce making sure the weave is 45 degrees off the previous layer then

finally
> add a layer of .75 cloth. Let all that cure and then pop it off. This is

done
> only over the area you expect to need a door for.
>
> Pull the covering off the fuse and continue with your building and

finishing.
> When you ahve the retract in and the opening set up the way you want lay

the
> glass piece you made over the open and trace the size to fit the hole

you've
> made. Cut the door to fit mount with hinges like Sonictronics offers,

follow
> the directions about keeping the pivot points lined up and you'll have a

pretty
> nice set up.
>
> Wish I could claim credit for this idea but I learned it from the Dave

Platt
> video.
>
> Chris
>




Old Dec 19, 2002, 05:32 PM
Sherman F. Dickson II
Guest
n/a Posts
Re: P-39 nose gear door

Lay wax paper over the area. Its easier. I am in the process of building
a plane that will have retracts hopefully, so I have been doing some
research on gear doors and actuators also. I came across this site last
article last evening. Maybe it will be of some help to you also.
http://www.fly-imaa.org/imaa/hfarticles/howto.html

BTW if you happen to receive any good sketches on the subject, I would
appreciate it if you could pass them along to me.

Sherman

Drago wrote:
>
> Chris,
>
> great advice - I was thinking of just cutting the balsa door out of the fuse
> once I get the nose gear into place, but it probably wouldn't hold the shape
> once cut out from the fuse - your method seems much better.
>
> I am a little apprehensive about glassing since I'm alergic to epoxy, but I
> guess an overall, latex gloves and mask should do the job.
>
> Thanks,
>
> Drago
>
> "Chris Spierings" <spierings@removemailbag.com> wrote in message
> news:3E01EDBB.CB0DDC89@removemailbag.com...
> > If its the gear door itself that you are trying to fabricate I"d suggest

> you
> > build the fuse with the gear retracted. When you have everthing all

> shaped and
> > smooth iron on some monokote or similar covering. Then get yourself some

> 6
> > ounce glass cloth and some .75 ounce cloth. Lay up about 4 layers of the

> 6
> > ounce making sure the weave is 45 degrees off the previous layer then

> finally
> > add a layer of .75 cloth. Let all that cure and then pop it off. This is

> done
> > only over the area you expect to need a door for.
> >
> > Pull the covering off the fuse and continue with your building and

> finishing.
> > When you ahve the retract in and the opening set up the way you want lay

> the
> > glass piece you made over the open and trace the size to fit the hole

> you've
> > made. Cut the door to fit mount with hinges like Sonictronics offers,

> follow
> > the directions about keeping the pivot points lined up and you'll have a

> pretty
> > nice set up.
> >
> > Wish I could claim credit for this idea but I learned it from the Dave

> Platt
> > video.
> >
> > Chris
> >

Old Dec 19, 2002, 05:32 PM
Sherman F. Dickson II
Guest
n/a Posts
Re: P-39 nose gear door

I was looking at their door hinge kit and it looks interesting. I know
that you can get door sequencers to have servo's drive the retract doors
but on a smaller model the added weight isn't good. Does the kit include
instructions on how to make simple door actuators?

Sherman

CurtD wrote:
>
> SonicTronics makes a nice kit that works great for gear doors. Here's the
> link:
> http://sonictronics.evisionsite.com/Hinges.html
>
> It's at the bottom of the page. The kit comes with full instructions on how
> to use it.
>
> "Drago" <smaug@bug.hr> wrote in message news:atscld$6l55$1@as201.hinet.hr...
> > Hi guys,
> >
> > I'm about to start building Top Flite P-39 Airacobra with retracts and
> > everything, and am having trouble figuring out how to do nose gear door
> > mechanism. Any suggestion (preferably from someone who had already built

> it)
> > would be greatly appreciated.
> >
> > Seems to me that there is no much room for any elaborate mechanism inside
> > the nose of P-39, so it would have to be pretty simple to work well.
> >
> > I saw something (nose gear door) at these nice pages
> > (http://www.wingsontheweb.com/vhangar.../oct24-97.html), made by guy

> who
> > scratch built Dornier 335, but must admit I am not sure I could build
> > something like that without detailed plans of the mechanism.
> >
> > Thanks in advance!
> >
> >
> > Drago
> >
> >
> >
> >

Old Dec 19, 2002, 06:12 PM
Drago@Madness
Guest
n/a Posts
Re: P-39 nose gear door

Sherman, thanks a bunch!
I'll make sure that I pass along to you any info on this matter I come
across.

On your previous question (instructions on making gear door actuators) there
are none. Otherwise - great kit, and great instructions.


Drago



"Sherman F. Dickson II" <dicksonsf@comcast.net> wrote in message
news:3E0246F4.597214F3@comcast.net...
> Lay wax paper over the area. Its easier. I am in the process of building
> a plane that will have retracts hopefully, so I have been doing some
> research on gear doors and actuators also. I came across this site last
> article last evening. Maybe it will be of some help to you also.
> http://www.fly-imaa.org/imaa/hfarticles/howto.html
>
> BTW if you happen to receive any good sketches on the subject, I would
> appreciate it if you could pass them along to me.
>
> Sherman
>
> Drago wrote:
> >
> > Chris,
> >
> > great advice - I was thinking of just cutting the balsa door out of the

fuse
> > once I get the nose gear into place, but it probably wouldn't hold the

shape
> > once cut out from the fuse - your method seems much better.
> >
> > I am a little apprehensive about glassing since I'm alergic to epoxy,

but I
> > guess an overall, latex gloves and mask should do the job.
> >
> > Thanks,
> >
> > Drago
> >
> > "Chris Spierings" <spierings@removemailbag.com> wrote in message
> > news:3E01EDBB.CB0DDC89@removemailbag.com...
> > > If its the gear door itself that you are trying to fabricate I"d

suggest
> > you
> > > build the fuse with the gear retracted. When you have everthing all

> > shaped and
> > > smooth iron on some monokote or similar covering. Then get yourself

some
> > 6
> > > ounce glass cloth and some .75 ounce cloth. Lay up about 4 layers of

the
> > 6
> > > ounce making sure the weave is 45 degrees off the previous layer then

> > finally
> > > add a layer of .75 cloth. Let all that cure and then pop it off.

This is
> > done
> > > only over the area you expect to need a door for.
> > >
> > > Pull the covering off the fuse and continue with your building and

> > finishing.
> > > When you ahve the retract in and the opening set up the way you want

lay
> > the
> > > glass piece you made over the open and trace the size to fit the hole

> > you've
> > > made. Cut the door to fit mount with hinges like Sonictronics offers,

> > follow
> > > the directions about keeping the pivot points lined up and you'll have

a
> > pretty
> > > nice set up.
> > >
> > > Wish I could claim credit for this idea but I learned it from the Dave

> > Platt
> > > video.
> > >
> > > Chris
> > >



Old Dec 19, 2002, 11:42 PM
David AMA40795 / KC5UH
Guest
n/a Posts
Re: P-39 nose gear door

Here is a site with some ideas fer ya....

http://flyinglindy.homestead.com/b25...ectronics.html

Have fun!

David

On Thu, 19 Dec 2002 13:05:00 +0100, "Drago" <smaug@bug.hr> wrote:

>Hi guys,
>
>I'm about to start building Top Flite P-39 Airacobra with retracts and
>everything, and am having trouble figuring out how to do nose gear door
>mechanism. Any suggestion (preferably from someone who had already built it)
>would be greatly appreciated.
>
>Seems to me that there is no much room for any elaborate mechanism inside
>the nose of P-39, so it would have to be pretty simple to work well.
>
>I saw something (nose gear door) at these nice pages
>(http://www.wingsontheweb.com/vhangar.../oct24-97.html), made by guy who
>scratch built Dornier 335, but must admit I am not sure I could build
>something like that without detailed plans of the mechanism.
>
>Thanks in advance!
>
>
>Drago
>
>
>
>


 


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