dieselpunkisdad:dieselpunkisdad:In progress: I started sketching the CAC Boomerang requested by @kal
dieselpunkisdad:dieselpunkisdad:In progress: I started sketching the CAC Boomerang requested by @kalashnikovs-and-lace . So far it’s outlines and flat colors only. Next step are decors and insignia, highlights and shadows, a little texture on the exhaust pipe. Actually, I may redraw the exhaust entirely. It is a very characteristic part of the CAC Boomerang and there were multiple variations on how the exhaust was let out and cooled. I drew a basic one because at this size the differences don’t really show. For the record: - There was a shorter sideways angled pipe with heat protection plating following the exit:- And later one that looks like it has little cooling fins: As it turns out there is an entire reddit discussion dedicated to these. This is how they look up close:Apparently these are called porcupines and were introduced with CA-13 Boomerang Mk.II in 1942. Redditor Tenroh_ points out an original scanned archive document of the Royal Australian Airforce, DTS [Directorate Technical Services] - Boomerang aircraft - cowlings and [engine-airframe] fittings:on page 14 the night flying report says:“During and after take-off, reflections of the exhaust flame in the perspex windshield are bad. The whole of the starboard mainplane is illuminated by the flame.”So they installed this exhaust flame dampering porcupine because the exhaust flames were so bright at night that the reflections blocked the pilots view of the instruments. The fact that with flame suppression you also did not stand out on the night sky like a falling star whenever you kicked the engine to full power probably helped as well.So this is how they turned out with the porcupines, cleanup, decor, highlights and shadows and animation:A pair of CA 13 Boomerangs of the 83rd Australian Home Defense Squadron overflying a cloud bank whilst patrolling the coast. -- source link