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Old 03-31-2011, 04:19 PM
  #495  
hyman
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Default RE: C-ARF Ultra Flash build Thread + Video

Dave you're probably right about the tail cone, i'll try this setup and see how it goes coz
ORIGINAL: Dave Wilshere


ORIGINAL: hyman


ORIGINAL: Dave Wilshere


ORIGINAL: hyman

Hello everyone,

In the manual its mentioned that I need to get the inner thrust tube to at least 8 mm to the outer thrust tube. To acheive that I need to insert the pipe into the bell mouth only 5 mm which is too little. At the end, My setup ended up with 15 mm to the outer thrust tube. I didn't think it would make any difference, what do you think?

Hassan
Hassan

MMmmmm Why? All Flashes are the same. 15mm is really too much and you will lose some thrust, ok from running and cooling though. With your carbon bell mount does it come through the rear wing opening former much?

Dave

Dave the inner thrust tube is in the bellmouth 10 mm as mentioned and the bell mouth is flush on the bulkhead

Strange! Looks as mine, I'll go and look... Maybe your fuselage tail cone was not trimmed as much and is longer.

My tail pipe was only inserted 8mm and looking at my model the outer pipe is 1.5-2mm back from the tail cone, so these mm add up.

Dave