DQA 704


DQA 704 - plan thumbnail image

DQA 704 - completed model photo more pics (2)

DQA 704  
by Stu Babcock
from RCMplans (ref:9043)
December 1964 
32in span
Tags: IC R/C Trainer
all formers complete :)
got article :)

This plan was found online 24/03/2011 at: http://www.rcgroups.com/forums/showthread.php?t=1265873&page=180
Outerzone planID: oz12 | Filesize: 187KB | Format: • PDFbitmap | Credit*: rchopper56


About this Plan

DQA 704 - Radio control sport model. Wingspan 32in for rudder only proportional.

This plan file includes a text article with some history...The D.Q.A. 704 was designed in the Summer of 1964 by Stu Babcock as a test bed for Babcock Controls new BC-21 and BC-22 single channel systems ...we were not only thoroughly convinced that Babcock's new single channel escapement and proportional systems were ideally suited for the sport flier and newcomer to radio control, but that the ship used as a test bed was one of the best flying, small-field single channel airplanes we had run across.

Update 15/08/2017: added scan of original article, thanks to davidterrell80.

Supplementary files

Plan file includes article text.
Scan of original article, with images, also available as separate file.


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User comments

DQA photos [see more pics 003, 004]. Came in at 9 7/8 oz but tail heavy. With nose weights should hit the design weight of 11 oz. Would recommend extending the nose a 1/2" or so for more battery room and for balance. The fuselage is short compared to the wing span.
bhibbets - 12/08/2013
D.Q.A. 704 stands for Damn Quick Airplane, and the 704 is how much it cost to build, not counting engine and radio. Mine was covered in red silk for the wing and jap tissue everywhere else. It's one of the original "park flyers" because that's where I flew mine. Nobody complained about the shriek from the Cox Pee Wee 020. I used the exact same Controlaire Mule transmitter shown in the photo, with a Citizenship "sugar cube" receiver and escapement. It needs every bit of the seemingly excessive downthrust for the Pee Wee, which was a little too much motor. Nowadays it would make a fine electric with about a 300 motor, and I would leave the landing gear off and skid it to a stop on the grass.
DougSmith - 14/07/2015
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