BollAero 18 (oz13680)


BollAero 18 (oz13680) by Chris Boll 2009 - plan thumbnail

About this Plan

BollAero 18. Model aero engine.

Designed by Chris Boll. CAD by Ron Chernich.

For the full story on the BollAero - and more good photos of built engines - see:

Quote: "The BollAero 18 is a 1.8cc side-port, compression ignition engine designed by Chris Boll for home construction from barstock. Chris modeled it after the smaller ML Midge (oz13675) designed by Mark Lubbock. Plans for the engine originally appeared in Aviation Modeller International, but Chris generously offered them to readers of Model Engine News, so they were modelled in Alibre Design by Ron Chernich and made available for download in October, 2009."

Direct submission to Outerzone.

Quote: "Many model engine builders have started by building this engine, it really is easy to build and rewards with easy to start and good running characteristics – I know, as it was my first. Ed,"


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BollAero 18 (oz13680) by Chris Boll 2009 - model pic

  • (oz13680)
    BollAero 18
    by Chris Boll
    1.8 cc
    Engine Diesel
    clean :)
    complete :)
  • Submitted: 09/03/2022
    Filesize: 611KB
    Format: • PDFvector
    Credit*: EdHolly
    Downloads: 1033

BollAero 18 (oz13680) by Chris Boll 2009 - pic 003.jpg

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User comments

Steve & Mary the pioneers once again !! What a brilliant idea to add the engines into the database !! They're so very much part of our aeromodelling heritage !
KvdB - 12/03/2022
Engine drawings? Just when I'm considering buying a lathe/milling machine......
Tim Hooper - 12/03/2022
YIPPIEE! Now we have engine drawings! Thank you Steve and Mary, what a great idea! Howdy from Byhalia, Ms. USA
Al and the hounds
Al Robinson - 13/03/2022
I offer you here a link on the fantastic work of a French model maker Francis Derosier (Jyvaro site) who recreates engines in reduction including the famous Merlin Rolls-Royce. See: and also:
Olivier - 14/03/2022
Anybody know how to print the drawing with a black only printer? My attempt has none of the blue details. Quite funny, I was looking at the print out and thinking there's something not right...
James - 12/08/2022
I'd check your printer driver settings, and look for a "print in greyscale (black and white)" option. See if that fixes it.
SteveWMD - 12/08/2022
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