Kitfox Series 7 Super Sport - Show Me Fox

[Jason Murphy]

I have decided to add my build log to the Kitfox Forums in addition to the EAA Builders Log to receive feedback from members of the forum.

https://eaabuilderslog.org?s=KitfoxS7SS

Thanks to everyone in advance!

[Jason Murphy]

Prepped and installed drag anti drag brackets between ribs 3 - 7.

Located and bonded ribs 3, 4, & 5 to wing spar. Secured with clamps and applied fillet of hysol.

Plan for next work session is to locate and bond ribs 6 & 7 in place. Waiting on drag anti drag bracket to arrive from kitfox.

Ordered plain aluminum hubcaps for grove wheels. Will polish to match landing gear.

Sanded ends of horizontal stabilizer and elevator to match. Applied additional Superfil to end caps due to removing too much material initially. Obtained a pleasing contour at the junction of the elevator and horizontal stabilizer.

Added superfil to inside of the end ribs to prevent moisture from becoming trapped inside.

[Jason Murphy]

Busy day, got a lot accomplished.


Bonded ribs 6, 7, 8, Skip 9, and 10 in place.


Bonded stringer into place.


Sanded superfil which had been applied to horizontal stabilizer.


Posted questions regarding flaperon brace and asked if air bubbles would show through covering.

[Jason Murphy]

Fitted Top False Ribs between rib bays 3,4, and 5. Each false rib numbered for reassembly after the spar has been prepped.

[Dave S]

Hi Jason,

Making good progress!

Regarding the air bubbles showing through - in my experience with car finishing and airplane covering, it is worth considering that any irregularity under the fabric/paint will show up much better after the job is done - by then it is a little difficult to put the eggs back in the shell; but, depends on if a person is concerned with that or not - on a utility finish it probably doesn't matter - it will fly either way.

[Jason Murphy]

Locate and fit remaining top false ribs on left wing. Number for reassembly after spar is prepped for bonding.

Remove trailing edge from right wing. Begin to remove the excess Hysol from between capstrips. This Hysol which had been generously applied while bonding trailing edge to seal the wood now interferes with installing the flaperon hinge brackets to the trailing edge which the flaperons attach.

Spoke with Brandon, he advises when he builds up a wing he will place the trailing edge, install flaperon hinge brackets, and install trailing edge support tubes in the trailing edge at the same time. This prevents cured adhesive from interfering with the installation of another component.

[Jason Murphy]

Had to remove cured hysol from trailing edge of wing. Took approximately 5 hours to remove. Hysol had to be removed because it interfered with locating and bonding of rib braces for flaperon attachment brackets.


Fitted rib brace material for flaperon attachment brackets.


Moved wing next to fuselage. Hung wing by rear spar per instruction manual.


Prepped bonding surfaces of left wing to bond false ribs.

[alexM]

Keep it up Jason. Good to see your build thread here.

[Jason Murphy]

Physically manipulated false ribs to work bends and warpage out.

Consulted with Brandon regarding Props, Upholstery, Rigging Wings, Locating and Rigging Flaperon.

Received replacement brackets for drag anti drag tubes.

Received hubcaps for wheels which will of course be polished to high luster.

Borrowed 0.3115 reamer for spar reinforcement braces from my cousin Gary.

[Jason Murphy]

Keep it up Jason. Good to see your build thread here.

Alex, Thanks for your support. Good to rear from you! I am posting both here and on the EAA Builders Log. A link is attached in my original post to my previous work.