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P51
12 - 24 lb. 630 Series Pneumatic Retracts
Dimension Drawings & Spare Part List Are In PDF Format And Require
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630 Series Pneumatic Main Gear Retracts
These series of pneumatic retracts are designed for R/C aircraft weighing up to 24lbs.. Constructed with heat treated aluminum alloy frames and trunions, these gear are furnished with 1/2” dia. 4130 alloy steel tubular RoboStruts. They offer long dependable service for large aircraft flying off grass or paved runways. Powered by a 1/2” bore triple sealed Robart air cylinder, all of these units feature positive up and down locks. Easily adjusted for toe-in with the unique Robart “split-lock” trunion. Available in standard 90°, 85° Main Gear, and 90°, 100°, 105°, and 110° Nose Gear retract angles, with straight or offset struts. The Nose Gear units are standard as a steerable with an offset strut. These gear are also available without a strut, for use with any 7/16” or 1/2” dia. RoboStrut.
(Robart Air Control Kit Required. Sold Separately)

Part # 630
90 deg. Retract with 1/2" dia. Straight Strut

MSRP $251.20 (pr.)

Dimension Drawing

Spare Parts List


Part # 630RS
90 deg. RoboStrut Ready Retract Mechanism Only

MSRP $152.90 (pr.)

Dimension Drawing

Spare Parts List


Part # 631
85 deg. Retract with 1/2" dia. Straight Strut

MSRP $251.20 (pr.)

Dimension Drawing

Spare Parts List


Part # 631RS
85 deg. RoboStrut Ready Retract Mechanism Only

MSRP $152.90 (pr.)

Dimension Drawing

Spare Parts List


Part # 632
90 deg. Retract with 1/2" dia. 4" Offset Strut

MSRP $251.20 (pr.)

Dimension Drawing

Spare Parts List


Part # 633
85 deg. Retract with 1/2" dia. 4" Offset Strut

MSRP $251.20 (pr.)

Dimension Drawing

Spare Parts List


630 Series Pneumatic Nose Gear Retracts

Part # 638RS
90 deg. RoboStrut Ready Nose Retract Mechanism Only


Part # 639RS
100 deg. RoboStrut Ready Nose Retract Mechanism Only


Part # 640
105 deg Nose Gear Retract 3 1/2" Offset Strut

MSRP $152.90 (ea.)

Dimension Drawing

Spare Parts List


Part # 640RS
105 deg. RoboStrut Ready Nose Retract Mechanism Only


Part # 641RS
110 deg. RoboStrut Ready NoseRetract Mechanism Only


Part # 642RS
95 deg. RoboStrut Ready NoseRetract Mechanism Only


Part # 643RS
90 deg. RoboStrut Ready Nose Belly/Firewall Mount Retract Mechanism Only

MSRP $98.80 (ea.)

Dimension Drawing

Spare Parts List


Part # 644RS
95 deg. RoboStrut Ready Nose Belly/Firewall Mount Retract Mechanism Only

MSRP $103.80 (ea.)

Dimension Drawing

Spare Parts List


Part # 645RS
100 deg. RoboStrut Ready Nose Belly/Firewall Mount Retract Mechanism Only

MSRP $103.80 (ea.)

Dimension Drawing

Spare Parts List


Part # 646RS
105 deg. RoboStrut Ready Nose Belly/Firewall Mount Retract Mechanism Only

MSRP $103.80 (ea.)

Dimension Drawing

Spare Parts List


Part # 647RS
110 deg. RoboStrut Ready Nose Belly/Firewall Mount Retract Mechanism Only

MSRP $103.80 (ea.)

Dimension Drawing

Spare Parts List