Penny Wise (oz9141)
About this Plan
Penny Wise. Indoor rubber powered model.
The Chicken Ship (oz9140) and Penny Wise designs were both printed together on the same free plan sheet from Aeromodeller June 1971.
Quote: "Dave Linstrum's simple tissue-covered indoor model.
THE ORIGINAL THOUGHT behind the name of this model was the old saying of 'penny wise and pound foolish'.
The Penny Plane event was conceived by Erv. Rodemsky as a really simple event with a minimum weight requirement (equal to one US Copper Penny hence the name which weighs approximately 1/8 oz resulting in sturdy structures. Further limits are imposed on the wing span (18 in maximum projected) and motor stick length (10 in max - overall length of the fuselage not to exceed 18 in) all of which limit performance.
Despite these restrictions, designs in the USA have been surprisingly original, and even outright beginners have had most encouraging results. Although the rules permit bracing, it is seldom used - the secret really seems to be getting a reliable airframe with the right combination of motor (rubber cross section and length) for the props being used.
This class is quite a challenge to the expert to get good times from relatively heavy airframes, so it is interesting to them as well. Times of five minutes are good when there is a 30 foot ceiling height.
Use the lightest wood available for your Penny Wise - it may be built with light indoor-weight or regular 'out door' stock. However, if you use normal outdoor stock the model may go overweight.
Make the wing first, noting alternative sizes of wood for novices which are easier to handle, cutting ribs from quarter grain. Use a minimum of glue throughout to save weight - which means that joints must be accurate to provide sufficient strength. Note the 1/4 in wash-in at the LE of the port tip..."
Scan from DBHL, cleanup by theshadow.
ref DBHL-6476.
Direct submission to Outerzone.
Update 31/08/2017: added article, thanks to RFJ.
Supplementary file notes
Article.
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(oz9141)
Penny Wise
by Dave Linstrum
from Aeromodeller (ref:D1110)
June 1971
18in span
Rubber F/F
clean :)
all formers complete :)
got article :) -
Submitted: 23/08/2017
Filesize: 224KB
Format: • PDFbitmap
Credit*: DBHL, theshadow
Downloads: 972
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- Penny Wise (oz9141)
- Plan File Filesize: 224KB Filename: Penny_Wise_DBHL_oz9141.pdf
- Supplement Filesize: 410KB Filename: Penny_Wise_DBHL_oz9141_article.pdf
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Notes
* Credit field
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Scaling
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