About this Plan
Acrobat. Radio control model for 2 channels.
Quote: "With rudder and elevator control, this sturdy little RC job does tight loops, Immelmans, true stalls, and flew inverted. Fine on rudder only. Acrobat, by Bill Winter.
The Acrobat is a small (less than 4-1/2 feet) radio job, utilizing two controls by means of the Bonner compound escapement to give both rudder and elevator on a single channel. Although the plane weighs three pounds 11 ounces, it is on the fast, peppy side when powered with the Cub 14 and 9 x 6 Power Prop, with good fuel. Tight consecutive loops, vertical dives, true stalls, and even brief inverted flights have been achieved.
However, the combination of rudder and elevator is not for the beginner in RC and is recommended only for an experienced flier who has quick reactions and can anticipate the performance of a plane in various maneuvers. The beginner should fly with rudder alone; the moderately experienced pilot should leave the elevator mechanism disconnected until he is familiar with the ship and only then gingerly begin to feel out the flippers.
Anyone capable of building an RC job will not need construction details; instead let's concentrate on the control systems and how to fly the plane, it is imperative that the radio, Atalli, escapements, and linkages be in perfect order at all times and, idle 1W-- secondly, the operator must be positive that he can obtain any desired control without mistakes. The finished plane should be bench tested until it is obvious that the system works perfectly and reliably, and that the flier can work either a beep box, ground control switch or microswitch without picking up the wrong controls. It is particularly important that the compound escapment be thoroughly checked out and that the proper rubber size and length be determined for your ship, as well as the range of turns in the rubber that provide safe operation.
There is a possibility for a compound escapement to hang up on the third position (the electrical contact then being closed to operate the second escapement) on 1/8 in rubber. Should this occur in flight, any subsequent pulses to obtain rudder will give up and down elevator instead..."
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 email@example.com
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, 2011-2020.
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.