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Celestian ( 60 in. / 152.4 cm )


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Celestian model airplane plan

Celestian

American Modeler magazine's Celestian

Celestian is a 1/2A/A AMA gas free flight design by Al Kramer of the famous San Valeers free flight club in Los Angeles.
Al flew this plane to win the 1/2A event at the AMA Nationals held at Los Alamitos Naval Air Station, California, in 1963. The plane is large and light, 420 square inches wing area with a flying weight under 9 ounces (estimated). The multi-spar wing with its undercambered airfoil, coupled with the aircraft's light weight, delivers "floater" performance and thermal-catching glides after the engine shuts down by timer command. Powered by either a Cox Tee Dee 049 or 051, the same plane could compete in either 1/2A or A free flight simply by changing engines. Since the 60s, engine runs have gotten much shorter (4-5 seconds today vs. 20 seconds then) and competitive 1/2A/A designs are subsequently much smaller and lighter than in the early 60s. Regardless, the Celestian would be really fun to build and fly for Nostalgia events or sport free flight where longer engine runs would be the norm. Pick balsa stock for lightness and strength, put a strong 1/2A/A engine on the front, be sure to install a dethermalizer, and enjoy the thrill of a Celestian climbing out in a Vertical Take Off (VTO)! Thanks to "theshadow" for bringing back the plans for this classic 1/2A/A free flight design!

Link to this page: https://aerofred.com/details.php?image_id=80137

Details: Full Details
ID: 80137
File Size: 1.1 MB
Type: Airplane
Class: Free-Flight
Use: Thermal
Motor: Gas-Powered
Motor Size:0.049-To-0.15-CI (2-strokes)
Wingspan: 60 in. / 152.4 cm
Publisher: American Modeler magazine
Designer: Al Kramer
Date: 07/1963
Material:Various-Wood-Types
Listing Editor: Aerofred - Unedited Plans
Added: 25/03/2015 19:39
Updated: 25/12/16 05:17:32pm
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Filetype: .pdfSoftware for .pdf files

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Plan Attributes: Edit Attributes
Plan ID:80137
Keywords:Celestian 1/2A A free flight gas competition Kramer San Valeers
Class:Free-Flight
Model Type:Airplane
Aircraft Use:Thermal
Wingspan: 60 in. / 152.4 cm
Wingspan Class:125cm-To-160cm (50in-To-63in)
Wing Position:High-Mounted-Wing
Wing Style:Straight-Wing-Rect
Wing Dihedral:Polyhedral
Landing Gear:Skid
Motor Type:Gas-Powered
Motor Size:0.049-To-0.15-CI (2-strokes)
Number of Motors:1-Tractor
Material:Various-Wood-Types
Construction Skills:Low-Intermediate
Pilot Skills:Low-Intermediate
Publisher:American Modeler magazine
Date:07/1963
Designer:Al Kramer
Restorer:theshadow
Category:Wood Model Airplane Plans
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