Aluminum Ribs

Manufactured by

Carlson Aircraft Inc.

Aluminum Ribs

built-up rib

Piper STC'd Ribs

R-3 series airfoil is a USA-35B modified as per original Piper design.

T-Cap section is extruded 6061-T6. Intercostals are 2024-T3
Rib is riveted to cap of metal I-beam spar.
Rib is screwed to web of a wooden spar.

Rivets attaching intercostals to rib base can be pre-drilled but un-attached for easy replacement purposes at no extra charge. (Request with order.)

Rivets are 5056 series, closed end aluminum with steel mandrel and domed head.

A single rib will be sent upon request for the price of the rib plus $25.00 shipping and handling.

USA-35B - Replacement Ribs For: J-2 Through PA-18

(A) = 63" (B) = 9" (C) = 31"

PR3F FULL $67.00
PR3BU BUTT $67.00
PR3BURR BUTT REINFORCING PKG. $35.00
PR3A AILERON $67.00
PR3FL FLAP $67.00
PR3IN INBOARD - (R or L) $72.00
PR3OU OUTBOARD - (R or L) $72.00
PR3W WING TIP - (R or L) $67.00
PR3TBU TANK BUTT - (R OR L) $72.00
PR3TO TANK OUTER - (R or L) $72.00
PR4TB TANK BAY $72.00
PR3TN TIP NOSE $36.00
PR3N NOSE $36.00
PRTS TRANSFER $75.00

Note: All published prices subject to change

NOTE: USA Dollars only. Please call for current USA and foreign trade pricing.

For wood spar wings add " - W" to the end of part number.
For metal spar wings add "- M" to the end of the part number.
Designate RIGHT or LEFT where indicated.



Experimental Aircraft Aluminum Ribs


Gottingen 387 (Modified) - (Experimental)

(A) = 48" (B) = 9 1/4" (C) = 24"

R-1-F FULL RIB - (R or L) $50.00
R-1-A AILERON - (R or L) $50.00
R-1-IN INBOARD $55.00
R-1-OU OUTBOARD $55.00
R-1-N NOSE RIB - (R or L) $28.00

Designate R or L with number for right or left hand.

Note: All published prices subject to change

NOTE: USA Dollars only. Please call for current USA and foreign trade pricing.


Gottingen 397 (Modified) - (Experimental)

(A) = 54" (B) = 9" (C) = 26 1/2"

R-2-F FULL RIB - (R or L) $55.00
R-2-A AILERON - (R or L) $55.00
R-2-IN INBOARD $59.00
R-2-OU OUTBOARD $59.00
R-2-N NOSE RIB - (R or L) $28.00

Designate R or L with number for right or left hand.

Note: All published prices subject to change

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USA 35B - (Experimental)

(A) = 63" (B) = 9" (C) = 31"

R-4-F FULL RIB $60.00
R-4-A AILERON $60.00
R-4-IN INBOARD - (R or L) $65.00
R-4-OU OUTBOARD - (R or L) $65.00
R-4-WT WING TIP - (R or L) $58.00
R-4-BU TANK BUTT RIB - (R or L) $68.00
R-4-TO TANK OUTER RIB - (R or L) $68.00
R-4-TB TANK BAY RIB $65.00
R-4-WTN WING TIP NOSE (R or L) $28.00
R-4-N NOSE - (R or L) $28.00

Designate R or L with number for right or left hand.

Note: All published prices subject to change

NOTE: USA Dollars only. Please call for current USA and foreign trade pricing.


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