Pacemaker 2 (oz7201)

 

Pacemaker 2 (oz7201) by Ted Woolsey, Ken Woolsey from RCMplans 1966 - plan thumbnail

About this Plan

Pacemaker 2. Radio control model.

Quote: "Irwin Ohlsson's famed Pacemaker, designed by Ted Woolsey in the 1930s, is brought out of retirement by Brother Ken. The grand old lady of free flight is all decked out with full proportional control and rarin' to go.

The Pacemaker II is a most unusual ship by current R/C standards and configuration. Old-time free-flighters among the RC fraternity will recognize it as Ted Woolsey's design for Irwin Ohlsson in the 1930's. A renowned flighter in its day, Ted's brother, Ken Woolsey, an airlines pilot and competent RCer, modified the famous old design for radio control in 1963. More recently, additional modifications were made, and the ship is currently flying with a Bonner Digimite proportional system, as shown on the plans.

As presented, this is not a construction article, inasmuch as we do not expect the inexperienced RC'er to tackle this project. The plans are completely detailed, and the proficient RCer will have little difficulty in reproducing the Pacemaker. It does, however, follow the construction methods of the early free-flight models, and as such, is a departure from the current slab-sided designs that can be put together in a few evenings. One note of caution - when constructing the Pacemaker II use a liberal amount of cement, particularly where longerons and uprights are joined. Ken found Ambroid to be the best for this purpose inasmuch as it has excellent body residue and is fast drying. Another recommended bonding agent for this type of construction would be the newer Franklin Titebond.

Truly, this plane is an aerodynamic beauty, and will undoubtedly bring back many nostalgic reminiscences to the free-flighter of the 1930's and '40's. But, in addition to these attributes, the Pacemaker II is an excellent performing aircraft with modern radio equipment. It will perform the AMA pattern with the exception of the proto taxi and braking maneuver. The flat wing with 1-1/2 degrees dihedral provides good inverted performance. For the first outside loops, however, use plenty of altitude - this is not an 80 mph modern-day multi! By far the most spectacular maneuvers that Ken has been able to accomplish with the Pacemaker II are the rolls, which are started with plenty of speed vertically, which then become momentarily horizontal, then end up in a power spin at full throttle. Recovery is very prompt with opposite rudder and neutral elevator applied at about one-and one-half turns and all controls returned to neutral and 2-1/2 to three turns. The stalling characteristics are most favorable with no tendency to spin out..."

Direct submission to Outerzone.

Supplementary file notes

Article.

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

Pacemaker 2 (oz7201) by Ted Woolsey, Ken Woolsey from RCMplans 1966 - model pic

Datafile:
  • (oz7201)
    Pacemaker 2
    by Ted Woolsey, Ken Woolsey
    from RCMplans (ref:308)
    August 1966 
    70in span
    IC R/C Cabin
    all formers complete :)
    got article :)
  • Submitted: 06/11/2015
    Filesize: 928KB
    Format: • PDFbitmap
    Credit*: RFJ, Circlip

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, 2011-2021.

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.