Jatex (oz8086)
About this Plan
Jatex. Ja-Tex. Free flight Jetex model. Wing area 130 sq in.
Quote: "The JA-TEX has proven to be a stable, high climbing design and has always been a reliable ship, that once trimmed, remains trimmed. and is a constant threat in any competition.
Its origin dates back to the 1959 Nats, which was my first time on the Air Force team. and also my first Nats. I made it a point to watch the Rocket F/F event, as I had never seen it flown.
I was amazed at the weird and unusual designs. Some had extremely long tail moment arms, and some had stabs almost as big as the wings. Also. I noticed a dozen different locations and ways of mounting the engines. Some climbed extremely fast. but were unstable in their recoveries and glides. Others (especially the larger ones) were stable in the climb and glide but were lacking in altitude and even their excellent glide could not make up for this.
All in all, I did not see a particular design that showed me that any one trend had an advantage. In the spring of 1960, still bugged by the designs problems, I decided to build one for the forthcoming 'Tulsa Glue Dobers Annual.'
I felt that stability and simplicity were the two major items to design around. For stability, I used the same basic layout I have used with success in gas F/F, with a short tail moment arm for good recovery. Since I had no torque problems, a large vertical fin was used for stability under power.
For simplicity, the three-piece square tipped wing and a square stab were used. This allowed building time kept to a minimum. The size was a compromise of what I had seen the year before. Figuring that if we had the stability a small light ship could bomb up where the thermals were, this has proven to he true. The finished ship weighed in at 1-1/8 oz minus the motor..."
Direct submission to Outerzone.
Update 06/10/2016: article pages, text & pics added, thanks to RFJ.
Supplementary file notes
Article pages, text & pics.
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-
(oz8086)
Jatex
by Reid Simpson
from Model Airplane News
February 1964
29in span
Jetex F/F
clean :)
all formers complete :)
got article :) -
Submitted: 28/09/2016
Filesize: 238KB
Format: • PDFbitmap
Credit*: dfritzke
Downloads: 865
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- Jatex (oz8086)
- Plan File Filesize: 238KB Filename: Jatex_MAN_1964_oz8086.pdf
- Supplement Filesize: 1080KB Filename: Jatex_MAN_1964_oz8086_article.pdf
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