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Old 10th Feb 2017, 09:14
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Whimlew
 
Join Date: Feb 2017
Location: Ocean City, NJ
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Rotorcraft Weight Estimates Utility

I've implemented Raymond W. Prouty's rotorcraft weight estimates utility.

It's been some time since he detailed out the components that could/should be weighted. I'm curious as to what is missing based on the design of newer rotorcraft. This is what the utility does now (Can anyone call out what's missing based on the components in newer aircraft?):

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Item Estimate Weight
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Rotor Group
Main Rotor Blades 927.46 lbs.
Main rotor hub and hinge 754.85 lbs.
Tail Group
Horizontal stabilizer 35.85 lbs.
Vertical stabilizer (Fin) 103.26 lbs.
Tail rotor 173.95 lbs.
Propulsion Group
Engine installation 1127.0 lbs.
Propulsion subsystems 128.64 lbs.
Fuel system 73.44 lbs.
Drive system 1867.25 lbs.
Flight Controls Group
Cockpit controls 38.2 lbs.
System controls (boosted) 172.06 lbs.
Standalone Groups
Body (Fuselage) 1858.1 lbs.
Alighting gear 530.33 lbs.
Nacelles 253.22 lbs.
Auxiliary power plant 150.0 lbs.
Instruments 171.95 lbs.
Hydraulics 89.04 lbs.
Electrical 546.58 lbs.
Avionics 150.0 lbs.
Furnishings and Equipment 638.68 lbs.
Air Cond. & anti-ice 160.0 lbs.
Manufacturing variation 80.0 lbs.
=================================
TOTAL EMPTY WEIGHT: 10029.86 lbs.
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Last edited by Whimlew; 12th Feb 2017 at 03:31.
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