RC Parachutist (oz6168)

 

RC Parachutist - plan thumbnail image

About this Plan

R/C Parachutist - Free flight RC model.

Quote: "RCM introduces true-scale precision parachuting - jumping from a powered aircraft, stable and steerable free-fall, plus radio controlled opening of the chute and steerable landing to a designated target.

I first had this idea in the Autumn of 1973 after completing my military service as an airborne infantryman and, since that time, haven't been able to lose my initial enthusiasm for the project. I wanted to carry out true-scale parachute jumps with a small model parachutist. With 'true scale' I mean: exit from a motor-powered R/C aircraft, stable and steerable free-fall; plus radio controlled opening of the chute and steerable landing to a designated target.

Fortunately, the state of the art of raio control technology has progressed so far today that it is possible to place a complete radio system in the body of a 15 inch high 'Pinocchio'. After a great deal of thought, as well as some sleepless nights, I started building the project on Christmas 1973.

The first problem was how to control the chute, itself. With my experience in full-size sport parachuting, this was quite easy to solve. I used a circular canopy parachute with a single steering gore at the rear side which produces the forward drag as well. Control lines are mounted on both sides of this gore and connected to the jumper's hand. The arms of the parachutist are moved vertically by two servos. By pulling one of the control lines, the airflow through the left out gore is conversed and the chute will turn to the side where the control line is pulled. The arms are moving around the shoulder joint only, while the legs are moving around one axle and are not controlled.

The next question was ow to achive stable position during a free-fall with a closed chute. A falling body obtains stability by a sufficient dihedral and a low centre of gravity..."

Supplementary file notes

Article pages, text and pics, thanks to N1EDM.

Corrections?

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

RC Parachutist - completed model photo

Datafile:

003.jpg
003.jpg

Do you have a photo you'd like to submit for this page? Then email admin@outerzone.co.uk

User comments

No comments yet for this plan. Got something to say about this one?
Add a comment

 

 
 

Download File(s):
 

Notes

* 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.

Scaling

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.

 

Terms of Use

© Outerzone, 2011-2019.

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.