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Carf Skygate New Electric Gear Doesn't fit the plane

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Carf Skygate New Electric Gear Doesn't fit the plane

Old 01-20-2020, 05:23 PM
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rodrigomachado
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Default Carf Skygate New Electric Gear Doesn't fit the plane

Hi to all,

My first post on the forum. Very upset about it. While at Jetpower bought a new electric Landing Gear for Skygate Hawk from Carf. They shipped with some delay and to my surprise the gear doesn't fit on plane. Will need massive adaptation on gear door to make it close. These mods will be seen from outside of plane. Will have to cut a part of strut as well. Sanding inside the wing was made as mush as possible to keep the wing integrity and still doent fit.

Apparently the first one of these gear was sent to another friend in Brazil and was even worst. They sent a new trunion to him making the gear open 10 degrees more. Carf send me pictures of other planes with gear installed but they never sent one with doors closed.

So the sad part of this all is that Carf is shipping to customers a US$3.190 gear that they never installed in a plane at factory. We are their test dummies.

Wil send the videos on another post.

Rodrigo

Old 01-20-2020, 05:27 PM
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Rodrigo asked me to post the links since he is not allowed.


Old 01-21-2020, 03:33 AM
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Hi Rodrigo,
Just a thought re the door closing - my wheel sits a lot flatter in the well so is the wheel properly aligned? You may need a little 'toe in' but that looks excessive to me.
Best
Bob
Old 01-21-2020, 03:45 AM
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Dave Wilshere
 
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Hawk you normally need a tiny bit of toe out...
Old 01-21-2020, 06:21 AM
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In my thread Skygate Hawk - build (virtual manual) you will see in post 197 that the gear I had would not fit either, its a very tight fit generally by mine were welded wrong so check the alignment and make sure they are both the same first before entering into any airframe surgery!

marcs
Old 01-21-2020, 07:16 AM
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Originally Posted by Blancr View Post
Hi Rodrigo,
Just a thought re the door closing - my wheel sits a lot flatter in the well so is the wheel properly aligned? You may need a little 'toe in' but that looks excessive to me.
Best
Bob
is your gear the new electric one?
Old 01-21-2020, 08:45 AM
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RCISFUN
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I had an issue with my smaller CARF Hawk with the scale gear, my remedy was to make a angle wedge block that went under the Landing gear mount tabs to the rails, this angled the struts to allowed the tires to sit deeper in the openings allowing the doors to close completely.
Old 01-21-2020, 11:17 AM
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We have had two sets of the new electric gear for the Hawk. I’ll check whether either are fully installed.
Old 01-21-2020, 08:32 PM
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These gears don't seem to have the scale covers on them. I doubt if they would fit at all with the gear covers. Mine is not electric and would barely fit with the gear covers but with corner modifications.
Old 01-23-2020, 05:03 AM
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Originally Posted by DUCMOZ View Post
These gears don't seem to have the scale covers on them. I doubt if they would fit at all with the gear covers. Mine is not electric and would barely fit with the gear covers but with corner modifications.

Ok
this is will be a bit long but bare with me

A. The retract should be place in the wing in a way where the strut fork is almost all the way in the large door wheel Bay Area .

B. Shims should be placed between the retract aluminum flange and the retract plywood mount at an even height under all four flanges , then , more shims should be placed under the two rear flanges ( rear = closer to the wing tip)

this is action will lift the retract towards the strut gear door and tilt the strut positioning it away from the wing skin and the wheel to wheel gear door .

C. The wheels have a 0-0.5 tow in , definitely no tow out .

If some one needs more help on these procedures Iíll be more than happy to explain it over the phone and email . Iíve built a few of these hawks so Iím very familiar with the issue .
If done right , no altering of the composite parts is needed at all .
No matter if itís electric or air operated , with strut covers on as they should be .
Old 01-23-2020, 05:07 AM
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Default Hawk gear

Originally Posted by Dave Wilshere View Post
Hawk you normally need a tiny bit of toe out...
When done right , no toe out at all
Old 01-23-2020, 07:34 AM
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Originally Posted by lavi rider View Post
When done right , no toe out at all
with the electric gear? Have you installed one?
Old 01-23-2020, 10:28 AM
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Default Hawk gear

The difference lays with the electric retract motor . The geometry is the same , struts are the same .
Old 01-23-2020, 10:32 AM
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Default Hawk gear

Anyways , Iím offering you my help bro.

good luck
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Old 01-23-2020, 10:43 AM
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Originally Posted by lavi rider View Post
Anyways , Iím offering you my help bro.

good luck
lavi thanks for your offer. I dont have a plane. Rodrigo and another friend from Brazil have this electric gear. The strut is not the same. 100%
different gear. Airtech that did the pneumatic one is retired.
Old 01-23-2020, 11:16 AM
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I should get some pictures soon. The first og
f my guys has had hust installed and the doors close. He’s re doing the leg covers, so the gear has been taken out. The new legs are not identical to the originals...
Old 01-23-2020, 12:32 PM
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Originally Posted by lavi rider View Post
Ok
this is will be a bit long but bare with me

A. The retract should be place in the wing in a way where the strut fork is almost all the way in the large door wheel Bay Area .

B. Shims should be placed between the retract aluminum flange and the retract plywood mount at an even height under all four flanges , then , more shims should be placed under the two rear flanges ( rear = closer to the wing tip)

this is action will lift the retract towards the strut gear door and tilt the strut positioning it away from the wing skin and the wheel to wheel gear door .

C. The wheels have a 0-0.5 tow in , definitely no tow out .

If some one needs more help on these procedures Iíll be more than happy to explain it over the phone and email . Iíve built a few of these hawks so Iím very familiar with the issue .
If done right , no altering of the composite parts is needed at all .
No matter if itís electric or air operated , with strut covers on as they should be .
Hi Levi

My main problem on both has been attaching the linkage for the little gear door. where have you been attaching it to ?

Behzad
Old 01-23-2020, 02:00 PM
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Default Hawk gear

To the strut of course .
send me you email Iíll take some photos
Old 01-23-2020, 02:07 PM
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Default Hawk gear

Guys
the over all geometry of the struts is the same at all end points as the ones done by Airtech . Iíve seen the new struts . I repeat if done right it fits the plane just right . Itís a matter of understanding the situation of how it all goes together
Old 01-23-2020, 02:20 PM
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Originally Posted by lavi rider View Post
To the strut of course .
send me you email Iíll take some photos
Just sent you a PM.

Old 01-23-2020, 02:34 PM
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You have to shim the retract units on the wing mounting rails.
Old 01-23-2020, 05:19 PM
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Originally Posted by RCISFUN View Post
I had an issue with my smaller CARF Hawk with the scale gear, my remedy was to make a angle wedge block that went under the Landing gear mount tabs to the rails, this angled the struts to allowed the tires to sit deeper in the openings allowing the doors to close completely.

Rich, sent you a PM...
Old 01-23-2020, 05:37 PM
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RCISFUN
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Originally Posted by Ruizmilton View Post
Rich, sent you a PM...
Responded to your PM... Lavi rider provided a detailed explanation on how to shim the retract units in his post
The other issue I had wit the scale retract units was the bushings they used, they were made out of aluminum????
And the tolerances were very sloppy, I made new bushing from bronze material and it took all of the slop out.
The stock gear bushing allowed the tire end to move almost a 1/4", this made it so the tire would hit the wheel opening upon closure...
Old 01-23-2020, 11:19 PM
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Some pictures




Old 01-24-2020, 05:40 PM
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rodrigomachado
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Dave,

Was he able to fit? These pictures show gear closed with no strut and closed without being attached to fuselage. Was he able to close the doors? What he did?

Thanks for your help

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