Today's Message Index:
----------------------
1. 08:05 AM - Bungee Cord (spcialeffects)
2. 08:13 AM - Re: Classic Cowls and a 914 (spcialeffects)
3. 08:15 AM - Re: Classic Cowls and a Rotax 914 (spcialeffects)
4. 08:23 AM - Re: Bungee Cord (Pete Lawless)
5. 05:44 PM - Re: Bungee Cord (jonathanmilbank)
Message 1
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Hello all. Well i have just installed the bungee to the landing gear frame and
the whole thing retracts into the wheel well lovely, however i cant put it back
down again using the lever.....its just too stiff. I have to get under the plane
and pull the wheel down. Now i noticed on the diagram in chapter 29 the arrows
on the bungee. The first two point up and the rest point down. This depends
on the way you wrap the bungee around the lower tube (weather in front or
behind the tube). Are the arrows wrong? Should it be 2 down and 7 up? Most of
the weight (the wheel) is behind the lever so i imagine the bungee is really there
to lift the wheel not put it down, is this right? Input to aid my aching
hands, from pulling on that cord, is much appreciated. Thanks Frank
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=429168#429168
Message 2
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| Subject: | Re: Classic Cowls and a 914 |
Hi Erich, thanks for the reply. Yes the cowls or the bearer frame needs modifying
in order to get the 914 with turbo under the cowls. Because of the 4" forward
and 1.5" hight difference the XS cowl was developed. Here in the UK any modifying
to the cowl or frame needs to be tested and the findings put forward to
the LAA for approval which all takes time, money and effort which just prolongs
the time it takes to get into the air. Thanks again
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=429169#429169
Message 3
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| Subject: | Re: Classic Cowls and a Rotax 914 |
44 views and only 1 reply....sort of answer my question. XS cowls it is then
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=429170#429170
Message 4
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Hi Frank
Sounds like you have the bungee set much too tight. It should not
require any effort to drop the gear and very little to retract it.
Try loosening it of some until you can easily retract and drop the gear.
Regards
Pete
On 23/08/14 16:05, spcialeffects wrote:
>
> Hello all. Well i have just installed the bungee to the landing gear frame and
the whole thing retracts into the wheel well lovely, however i cant put it back
down again using the lever.....its just too stiff. I have to get under the
plane and pull the wheel down. Now i noticed on the diagram in chapter 29 the
arrows on the bungee. The first two point up and the rest point down. This depends
on the way you wrap the bungee around the lower tube (weather in front or
behind the tube). Are the arrows wrong? Should it be 2 down and 7 up? Most of
the weight (the wheel) is behind the lever so i imagine the bungee is really
there to lift the wheel not put it down, is this right? Input to aid my aching
hands, from pulling on that cord, is much appreciated. Thanks Frank
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=429168#429168
>
>
Message 5
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Hi Frank,
I agree that your bungee seems far too tight. In my opinion, the best way to test
on the ground after adjusting (loosening in your case) the bungee, is with
the wings rigged. Remove the top engine cowling and wrap a strop around the frame
behind the engine, then using a crane or block and tackle, raise the aircraft
until the mono-wheel is just off the ground. Place padded trestles lightly
(not jammed) under the wing tips and climb carefully into the cockpit.
A couple of assistants, one on each side to watch/steady things would be good.
They could also simulate air loads by lifting gently on the flap trailing edges
when required. IMHO the bungee is set right when the uc/flap lever can "float"
approximately in the middle of the gate with air loads.
This amount of bungee tension is just great, as it allows you to vary the drag
(a la glider) using flaps during a practiced forced landing as a substitute for
glider-type speed brakes. It worked for me!
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=429193#429193
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