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Forum: RC Warbirds and Warplanes

11-25-2009, 07:52 PM

Replies: 3,368

Top Flite '.60 size' P-51D Mustang ARF: Building & Modifications

Views: 696,464

Posted By rare_bear

RE: Top Flite '.60 size' P-51D Mustang ARF: Building & Modifications

yeah, maybe because it's such a short distance, it's that much less back pressure going down the remaining length of 1/2 inch tubing.... i don't know how to analyze the fluid dynamics.

here's...

Forum: RC Warbirds and Warplanes

11-25-2009, 02:06 PM

Replies: 3,368

Top Flite '.60 size' P-51D Mustang ARF: Building & Modifications

Views: 696,464

Posted By rare_bear

RE: Top Flite '.60 size' P-51D Mustang ARF: Building & Modifications

a bologne cut:
http://www.ronayers.com/catalogs/pu/parts.cfm?topsecid=1&subsecid=1&type=196&secid=33

measured increase in RPM's here (7'th post down):
...

Forum: RC Warbirds and Warplanes

11-24-2009, 02:43 PM

Replies: 3,368

Top Flite '.60 size' P-51D Mustang ARF: Building & Modifications

Views: 696,464

Posted By rare_bear

RE: Top Flite '.60 size' P-51D Mustang ARF: Building & Modifications

the pipes at central are 3/8 inch tubing. i am using 1/2 inch.

i used to use those 3/8 inch pipes and going to 1/2 inch gave me an extra 400 rpm's.... which translates into speed.
using a...

Forum: RC Warbirds and Warplanes

11-22-2009, 06:07 PM

Replies: 3,368

Top Flite '.60 size' P-51D Mustang ARF: Building & Modifications

Views: 696,464

Posted By rare_bear

RE: Top Flite '.60 size' P-51D Mustang ARF: Building & Modifications

here are some stats on props for ys engines on warbirds i've had in the past:

ys110fz using 30% nitro on a world models 46size mustang (currently flying)
13x10apc 11,070rpm
12x12apc...

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