About this Plan
Bulldozer. Free flight gas cabin model. From Model Airplane News, May 1945.
Quote: "THE Bulldozer was primarily designed for beginners in the gas model field. Most novices are easily discouraged because the ship they choose to start building gas models is usually one that requires an expert craftsman. The Bulldozer's simple but sturdy construction can really absorb punishment, while its boxlike construction offers the maximum in simplicity and strength.
The wing uses an airfoil which has been thoroughly tested and used in many of my previous designs. The most efficient type of dihedral is a continuous curve and the nearest thing to it is polyhedral which was used to advantage in the Bulldozer. The tail section consists of a lifting stabilizer which helps lift the weight of the fuselage and also helps to prevent loops under full power. The wing and tail section are held on with rubber bands and in case of a crackup will simply fly off.
All in all the Bulldozer really lives up to its name. From the moment the wheels leave the ground and the ship points its nose skyward, nothing can stop it. It climbs steeply to the left under power and glides to the right when the engine cuts. The glide is something to rave about because it takes advantage of the slightest thermals. Also, it performs equally well in all kinds of weather.
Now to begin actual construction. First of all, scale the plans up to full size, which isn't difficult because all the measurements are plainly shown.
Fuselage. Pin the longerons down directly on the plans and cement the uprights in place. The hardwood motor bearers and the gussets are built directly into the fuselage. Both sides can be made simultaneously and then split apart when dry; you will find this procedure saves time and assures absolute uniformity. In putting the fuselage together it is best to cement the rear first, then glue on the spacers at the cabin..."
Update 25/05/2018: Added article, thanks to Pit.
Update 25/05/2018: Replaced this plan with a clearer copy, scaled up to full size.
Direct submission to Outerzone.
Supplementary file notes
Previous scan version.
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
by Jerry Stoloff
from Model Airplane News
IC F/F Cabin
all formers complete :)
got article :)
Found online 29/04/2011 at:
Format: • PDFbitmap
Credit*: Brner, Pit, WMD
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, 2011-2019.
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.