Cloud-Dozer (oz4504)


Cloud-Dozer (oz4504) by RV Bentley 1946 - plan thumbnail

About this Plan

Cloud-Dozer. Cloud Dozer by Vince Bentley, 72in span petrol free flight model. Printed in five instalments in Model Aircraft magazine, from May through to September, 1946.

Quote: "This month brings the first instalment of the building instructions for the six-feet span duration model 'Cloud-Dozer' and we start with the wing. The ribs come first, so start by drawing out all the ribs full size, plotting them out by way of the usual methods from the ordinates given on the plan. Cut out two of each rib and half rib from 1/8in thick medium balsa sheet, with the exception of rib No 1, which should be cut from 1/4in thick hard sheet, and faced on one side with 1mm ply..."

Direct submission to Outerzone.

Update 12/06/2013: Added a supplement final part to the article pages, thanks to stormin.

Update 12/01/2018: Added further pages to article, now complete, thanks to GeoffO.

Note: Some parts of the design drawings (tail fin, etc) appear in the article file, and not in the plan file.

Update 29/05/2018: added additional article, from Aeromodeller August 1983, thanks to RFJ.

Supplementary file notes

Original article, all 5 parts compiled together, total 11 pages.
Additional Aeromodeller article.


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Cloud-Dozer (oz4504) by RV Bentley 1946 - model pic

  • (oz4504)
    by RV Bentley
    from Model Aircraft
    May 1946 
    72in span
    IC F/F Pylon
    clean :)
    all formers complete :)
    got article :)
  • Submitted: 07/06/2013
    Filesize: 752KB
    Format: • PDFbitmap
    Credit*: stormin, Pit
    Downloads: 3043

Cloud-Dozer (oz4504) by RV Bentley 1946 - pic 003.jpg
Cloud-Dozer (oz4504) by RV Bentley 1946 - pic 004.jpg
Cloud-Dozer (oz4504) by RV Bentley 1946 - pic 005.jpg

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User comments

I built a Cloud Dozer back in the mid '50s and took it to Warden Hills west of Luton for its d├ębut. The first flight, with the prop on backwards and a Comp Special four-stroking, resulted in a stately, protracted and dead straight descent. Much encouraged I turned the prop round, half filled the tank and started the engine, this time letting it two-stroke. The Cloud Dozer climbed vertically like a home-sick angel and when the engine cut, entered a stable, circling glide landing about a quarter of a mile away. I flew it many times after that (with a finer pitched prop!) until, after joining the army (Royal Signals) and being posted to Tonfanau, which was right on the coast just north of Twywn (between Aberdovey and Barmouth, North Wales), I flew it from the playing fields there. All went well until it reached a height of about 50 feet where the wind shifted from a mainly onshore breeze to an offshore gale and the last I saw of it, and my lovely old Comp Special, it was heading out across the sea to Ireland... Cheers,
Chuck - 26/06/2014
It seems the plans don't show the tail fin and rudder - many thanks to Ross for checking this. Does anyone have more info on this one? Thanks
SteveWMD - 12/01/2018
Cloud Dozer fin is in Model Aircraft August 1946 issue. see Mary's page at
Pit - 12/01/2018
Aha, thanks Pit. Ok, have added more pages to the article, it now includes drawing of tailplane, and also some notes on flying the model.
SteveWMD - 12/01/2018
Picture of an an old friend who sadly is in a care home now, of his Electric R/C Cloud Dozer, just one of the 145 models left in his collection [main pic, 005].
Brian Austin - 28/10/2020
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Download File(s):
  • Cloud-Dozer (oz4504)
  • Plan File Filesize: 752KB Filename: Cloud-Dozer_oz4504.pdf
  • Supplement Filesize: 749KB Filename: Cloud-Dozer_oz4504_article_AM.pdf
  • Supplement Filesize: 1796KB Filename: Cloud-Dozer_oz4504_article_MA.pdf
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