About this Plan
Celestian. Free flight power competition model.
Quote: "Remarkable go-go-go job has racked up many wins, set a National record, averages 4-1/2 minutes on 20 second run in dead air; for .049 and .051 power. Celestian, by Albert Kramer.
My first Celestian, built in January 1962 was an attempt to get away from contest airplanes that climb like overpowered rocket ships and last only a few weekends. It was also built to take advantage of the new unlimited rules.
Celestian is sort of a powered glider. In its original form, it had an 80 inch wingspan with the same fuselage and stabilizer as the present and final version. With a wingspan so extensive, it had the best glide of any powered contest airplane but lacked speed in its climb.
After a few days of flying, the original was cut down to the present 60 inch wingspan with a total 420 square inches of area. A bit more area was added to the rudder to help straighten out its climb. Within a month, Celestian was entered in two events at a contest at Taft, California and placed 4th in one event, 5th in the other. Two more Celestians were built with the only changes being methods of construction. These were completed, trimmed out, and flown every weekend for two months in preparation for a AAA contest which was to be held at Sepulveda Basin. Three events were entered at the AAA contest; Celestian placed in two of them, taking a first place in class 1/2A and a third place in ROW.
As an experiment, an .09 engine was tried. It proved to be too heavy and consequently the climb was not as fast and the plane did not glide well.
Since then, the plane has been entered at contests at Sepulveda Basin, Bakersfield, Taft, Tulare, Lake Elsinore, and Phoenix. Having entered over 29 events, Celestian has 17 trophies, three ribbons, merchandise awards, high time awards. Also, Celestian set a national record in class 1/2A of 24 minutes, 20 seconds.
Even though Celestian has the best features of today's popular contest planes, it is still completely original. It is very easy to build, having a square wing with an undercambered airfoil. Power is supplied by a Cox TD .049 or .051 swinging a Top Flite 5-1/4 x 4 nylon prop. Cox racing fuel is used in all flights.
Construction of the Celestian is very simple. The plane should turn out very light for its size if careful attention is given to the wood used. Although it is very light and has high aspect ratios, it can safely stand a D-T under power. When finished, the plane should weigh between 8-1/2 and 10 ounces, complete with engine, timer, and 9 coats of dope on all parts.
Begin construction with the fuselage. Cut out two identical sides (note that top edge is straight) and then glue 3/32 square runners to the four inside edges of the fuselage for the entire length. Two of these runners are spruce, placed in opposite corners of the fuselage..."
Hi Steve - Here is Albert Kramer's Celestian from American Modeler magazine issue July/August 1963.
Direct submission to Outerzone.
Supplementary file notes
Article pages, text and pics.
Did we get something wrong with these details about this plan (especially the datafile)?
That happens sometimes. You can help us fix it.
Add a correction
Do you have a photo you'd like to submit for this page? Then email firstname.lastname@example.org
User commentsNo comments yet for this plan. Got something to say about this one?
Add a comment
* Credit field
The Credit field in the Outerzone database is designed to recognise and credit the hard work done in scanning and digitally cleaning these vintage and old timer model aircraft plans to get them into a usable format. Currently, it is also used to credit people simply for uploading the plan to a forum on the internet. Which is not quite the same thing. This will change soon. Probably.
This model plan (like all plans on Outerzone) is supposedly scaled correctly and supposedly will print out nicely at the right size. But that doesn't always happen. If you are about to start building a model plane using this free plan, you are strongly advised to check the scaling very, very carefully before cutting any balsa wood.
© Outerzone, 2011-2021.
All content is free to download for personal use.
For non-personal use and/or publication: plans, photos, excerpts, links etc may be used, provided that full and clear credit is given to Outerzone with appropriate and specific direction to the original content i.e. a direct hyperlink back to the Outerzone source page.
Unauthorized use and/or duplication of this material without express and written permission from this site's owner is strictly prohibited. If we discover that content is being stolen, we will consider filing a formal DMCA notice.