RCU Forums - View Single Post - Buiding the 33% Waco YMF-5 Barth Modellbau
Old 03-16-2007, 05:06 PM
  #76  
Barlingbomber
 
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Default RE: Buiding pics Waco YMF-5 Barth Modellbau

Hi Cesar and others reading this thread.
I have just acquired a Desert Aircraft DA 100 from a friend who is not going to use it and I wanted to ask what you guys think of it as a choice for the 1/3 Waco. here are the details for the engine

Specifications
Displacement: 6.10 ci (100 cc)
Output: 9.8 hp
Weight: 5.8 lbs (2.63 kilos)
Bore: 1.6771 in (42.6 mm)
Stroke: 1.3779 in (35 mm)
Length: in ( mm)
RPM Range: 1,000 to 6,700
RPM Max: 8,500
Fuel Consumption: 2.5 oz/min @ 6,000 RPM

It will turn a 26 x 12 up to a 28 x 10 prop or a 16x12 3 blade at I would estimate around the 6000rpm range for the larger prop. Its a bit smaller than the MVVS 116 you are going to use Cesar and produces 1.2 less horsepower. I appreciate that target weight etc play their part in how much power you need but I'd appreciate yours and anyone else's opinion on this engine as a choice for the 1/3 Waco if they have built and flown this model,

thanks,

Phil
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