[gurps] [VEHICLE] of the week 672 – Anachronistic Cargo Helicopter

[Onno Meyer]

  This is a weekly posting with GURPS vehicles (and the like) to the 
GURPSnet mailing list. I grant the permission for all non-commercial 
redistribution of my work, but I would like to know if you put it on 
a website or the like. My site is down for rebuilding, but sooner or 
later the old stuff should reappear at   omeyer.gmxhome.de
  Onno Meyer, 2007-09-10

Anachronistic Cargo Helicopter v1.0 (TL6)
  Copyright 2007 by Onno Meyer

  In some alternate history stories, one side finds efficient uses for 
historical technologies. In other novels, genuine time travelers bring 
modern concepts with them. This large helicopter is reminiscent of the 
CH-47 or CH-46, using rotary engines instead of turbines.
  The helicopter has a cargo hold with a rear ramp and folding benches 
for up to 50 troops. Compact vehicles like jeeps or small armored cars 
can be carried internally, bulky vehicles like trucks or artillery can 
be carried as a sling load. The combat radius with an internal payload 
of 5 tons is almost 200 miles at 100 mph. In an alternate history game, 
a few hundred cargo helicopters might explain a successful Sealion or 
help to make Olympic and Coronet different from a replay of Overlord.
  At routine travel speed, the engines burn 200 gallons of aviation gas 
per hour. A full load of fuel is $320.

Subassemblies: Body +5, eight Small Wheels +1, two Rotors +2. 
Powertrain: Two 2,000-kW multiple main rotor drivetrains; two 2,000-kW 
  aerial turbocharged HP gas engine; 6,400-kWs lead-acid batteries.
Fuel: 800 gallons avgas (fire 14).
Occ: 4 RCS, 50 folding CS.

Armor      F    RL     B     T     U
Body:     3/5   3/5   3/5   3/5   3/5
Wheels:   3/5   3/5   3/5   3/5   3/5
Rotor:    3/5   3/5   3/5   3/5   3/5

Equipment
  Body: Two medium-range radios; intercom; navigation instruments; IFF; 
cargo ramp. External: 10,000-lb. hardpoint.

Statistics
Size: 110'x60'x24'   Payload: 8 tons      Lwt.: 18 tons
Volume: 2,180 cf     Maint.: 6 man-hrs.   Price: $1,323,995

HT: 9.   HP: 750 Body, 28 each Wheel, 338 each Rotor

aSpeed: 150   aAccel: 4   aDecel: 14   aMR: 3.5   aSR: 2
Stall Speed 0. Ceiling 2,300 yards.

Design Notes
  Body is 2,000 cf. Wheels are 100 cf. Rotors are 40 cf. Structure is 
light and expensive. Armor is expensive metal. Light, self-sealing 
tanks. Mechanical controls with duplicate maneuver controls. 147.35 cf 
empty space in body. Empty weight is 20,000 lbs.
  The vehicle uses the design rules from GURPS Vehicles [2nd edition, 
3rd printing, Dec 2004 errata], WWII (only the aerial engine and cruise 
speed/fuel consumption rules, not the entire modular system), VXi, VXii 
(the armor volume and ceiling rules), and the text format from Vehicles 
Lite. 


Next Week: A heavy biplane bomber.