Moonco and Crossbow (oz2352)
About this Plan
Moonco and Crossbow. One plan with 2 all-sheet CO2 model designs on the same sheet. A free pull-out from May 1978 Aeromodeller.
Moonco is a high wing cabin model, Crossbow is a flying wing pusher. Both models are all-sheet, and both use an interesting (Jedelsky?) wing construction, being built upside down and using a strip of TE-section balsa to form the LE of the finished wing. Article text is included here.
Quote: "Moonco has been made to resemble a powered cabin model of the late .1940s, Crossbow is a smaller version of a 0.5cc diesel flying wing that has been flown for the last six years. The original flew away from a meeting at Old Warden last summer.
Both models are of simple construction, which make them suitable for a beginner or a father-and-son project. Being all-sheet construction enables them to be built quickly, and each of the originals was ready to fly in seven hours. Weight is a major consideration with CO2 powered models and both planes should be made from straight grained medium soft sheet balsa. When complete Moonco should weigh no more than 3oz and Crossbow 2oz, otherwise performance can suffer.
The constructional notes are written with a beginner in mind, so that the builder of a few models will find all the information required on the plans. I suggest that all the balsa is sanded prior to the parts being cut out, as this eliminates much of the sanding work later on and helps to keep the weight down. To avoid distortion, non-shrinking adhesives should be used on all flying surfaces. I would recommend PVA, fast-drying epoxies or one of the new cyanoacrylates.
Cut out fuselage sides and mark the position of the formers, and glue formers 4 and 5 in position, when dry add the other side, checking that the top of the wing mounting is level. Whilst this is drying, cut two 4in long 1/16 sq strips from the sheet balsa and glue to the inside edge of the cabin area to make, an 1/8 in wide wing mounting. Hold the rear of the fuselage together with a paper-clip or clothes-peg and check symmetry before adding former 6 and gluing the sides so that they taper equally.
Formers 2 and 3 hold the CO2 tank in position and whilst 3 is flush with the top of the fuselage, 2 is set 1/8 in lower to allow clearance for the copper pipes to the filling nozzle. The engine former is made from two laminations of 1/16 sheet with the grain of the balsa at right-angles and then faced eith 1/32 ply. For ease of assembly, mark and drill the engine mounting holes before gluing the bulkhead into position. Use sheet with the grain across the fuselage between former 5 and the tailplane mount on the top; and between former 4 and the tail on the bottom..."
Supplementary file notes
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
Moonco and Crossbow
by John Kay
CO2 F/F Cabin Pusher
all formers complete :)
got article :)
Found online 31/01/2012 at:
Format: • PDFbitmap
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.