Observer (oz13649)
About this Plan
Observer. Bostonian class rubber model.
Quote: "The Observer. A Bostonian, by LF Randolph.
IF YOU'VE NEVER built any type of rubber model or have had disappointing results from a peanut or scale kit, this airplane's for you! So far every airplane built from these plans has flown and flown well. The builders have ranged from Old Timers to beginners and all have been successful. Even if you are ham-handed and have never covered with anything lighter than MonoKote (you can use it for the windshield), it will still fly. Of course the lighter and cleaner it is, the better it will fly.
The Observer qualifies as a Bostonian, and a very competitive one at that, but it was intended for fun-flying in school gyms and auditoriums. When the wind is calm, it can be flown outdoors with no problems - other than trees and house tops.
Construction: Pin the plans to either a building board, soft pine cardboard, or a foam board, and cover them with waxed paper. Build both fuselage sides at the same time, one right over the other, and use Ambroid cement rather than one of the instant kinds. If the 1/16 square pieces seem too small to handle, use some tweezers for the tight places. Hold the pieces in position with pins on both sides of them rather than through the wood.
When the glue is dry, remove the sides from the waxed paper and separate them by running a double-edged razor blade between them. If you accidentally break a joint, just re-glue it.
Refer to the top view, and cut six pieces of 1/16 square balsa all the same length to fit between the sides at the cabin. Pin the two fuselage sides upside down over the top view, and glue these pieces between them. Make sure the sides are square by holding them true with right-triangles. When the glue has set, pull the tail together and glue it at the tail post. Then add the cross pieces from the cabin to the tail.
Cut former F-1 , glue it at the nose, and add the 1/16 square doublers in the cabin area. Inlay the 1/16 sheet at the top and bottom of the nose..."
Observer, MAN, August 1984.
Direct submission to Outerzone.
Supplementary file notes
Article pages, thanks to RFJ.
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(oz13649)
Observer
by Randy Randolph
from Model Airplane News
August 1984
16in span
Rubber F/F Cabin
clean :)
all formers complete :)
got article :) -
Submitted: 23/02/2022
Filesize: 336KB
Format: • PDFbitmap
Credit*: Circlip, RFJ
Downloads: 892
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User comments
Hi Mary and Steve, this is the Observer oz13649 [main pic, 006, 007]. As I didn't build it for a Bostonian rules comp I added an extra wing bay on either side, making it just under 19" span, to give a bit more wing area for very little extra weight. Covered in Esaki tissue, it came out at 18.6g ready to fly. Many thanks for Outerzone and the work you do.Pete Startup - 08/06/2022
I built this model two years ago. See: https://www.youtube.com/watch?v=KyTRg8hgZ6s&ab_channel=MaciejJ beautiful model photos.
Maciej - 08/06/2022
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- Observer (oz13649)
- Plan File Filesize: 336KB Filename: Observer_oz13649.pdf
- Supplement Filesize: 3819KB Filename: Observer_oz13649_article.pdf
- help with downloads
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.
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