C-46 Commando
by Mars-Bound_Hokie
uploaded 2023-11-09
20 downloads /
3
points
SPH
stock+DLC aircraft
#c46 #wwii #usa #curtiss #cargo


The C-46 Commando on display in the SPH.

  • FIRST AND FOREMOST, the actual root part should be the Mk1-3 Command Pod kept inside the fairing in the front. I had to re-root the craft from the monoprop tank to the pod (and remove the front doors) due to crew seating and controls orientation problems. So, if you want to move the plane around in the SPH, grab the pod.
  • I made the cockpit as a separate craft (better version to come later), then proceeded with the rest of the plane. Unbeknownst to me early on, the lander can doors in the front won’t open unless they’re sticking out an absurd amount - rendering my ladders useless. If you want to enter and exit the plane, then use the doors at the rear.
  • I went for a 2.5-m (medium-sized tank) fuselage because, while this plane is larger than your typical 1 to 2-man fighter, using Mk3 parts felt like overkill and would reduce the accuracy of the aesthetic. Not to mention a 2.5-m fuselage would mean less weight for the prop engines than a Mk3.

That was why I started with the 2.5-m cockpit in the first place, so I can use it in future projects involving medium-large planes. Again, I’ll put out a better cockpit craft file later.

  • For the wings, I borrowed the ones from swjr-swis’s Skytrain replica and removed the control restrictions he had placed on the ailerons. To keep up with the aesthetic and to increase power capacity, I installed a battery and a fuel tank for each engine.
  • As for the engines itself, I reduced the motor size and output to 50%. While I could have gotten away with using R-25 ducted blades since the real-life Commando’s propeller diameter is close to that of the P-61 Black Widow’s, I decided to stick with Type S (largest) propeller blades so that the look is unmistakable.
  • Since the Commando was a cargo plane, why not install a cargo storage unit?
  • I don’t know if the real-life Commando had nav lights in WWII, but I put them on anyway in this case. After all, if you’re going to be carrying supplies over treacherous mountains OR be used for commercial airlines after the war, why not have those?

For the back, since C-46s were used to tow transport gliders into battle, I installed a telescoping hydraulic cylinder and a claw in the back for decoration. If you want to modify it to actually be used for towing gliders, knock yourself out.

For once, Famous Four kerbalnaut Jeb Kerman willingly decided to slow down a little bit after his years-long endeavor in space. When he was done spending time with his dad, Jeb Senior, (and getting some legal documents and titles straightened out, since Jeb Senior was previously presumed dead), he signed up for Warbird Airshow Pilot lessons through the Nye Island Aeropleen Museum (NIAM).

  • Bob had commented that whoever was in charge of making the sign was probably not used to the Nye Islanders’ thick accents.
  • Here, we see Jeb acting as the COPILOT of an old C-46 Commando. Burma Kerman IV, a descendant of a Second Imperial Wars cargo pilot, is acting as the pilot-in-command this time.

As the Commando is flying over its own Hump, Jeb decided to let the glider tow cable loose. As NIAM restoration engineer Genebro Kerman, who was on board at the time, would tell you, Burma Four was not happy.

  • BURMA FOUR: Jeb, what did I tell you about extending the tow cable mid-flight?
  • JEB: Aw, come on, it looks totally badass. We look like… a dragon with a sweet paint job attacking a mountain village.
  • BURMA FOUR: Reel it back in or I report a hijacking and shove you out through the cargo doors.

Real-life Counterpart Performance Stats

(C-46D Commando)

Maximum Speed: 245 mph (109.5 m/s)

  • Cruising Speed: 175 mph (78.2 m/s)

Service Ceiling: 27,600 feet (8.41 km)
Range: 1,200 miles (1,931 km)
Source: Air Force Museum Website

Details

  • Type: SPH
  • Class: aircraft
  • Part Count: 117
  • Pure Stock
  • KSP: 1.12.4

The Commando several minutes after going over Alt Test Mountains and getting to cruising speed.
Jeb mentioned that this plane could be used for airliners, then Genebro replied with the fact that surplus Commandos were for a while after the Second Imperial Wars.

  • At least until said airlines started having trouble paying the maintenance bills.

Description

The Curtiss C-46 Commando was a cargo and personnel transport used by the United States Army Air Forces, as well as the Navy and Marine Corps, during WWII. Derived from the Curtiss CW-20 pressurized high-altitude airliner design, the Commando was introduced in 1941 and then served in every theater of the war. It carried more cargo than the more well-known C-47 Skytrain and offered better performance at higher altitudes, but it required more extensive maintenance and had a relatively high loss rate. After the war, surplus Commandos were used by some air carriers (though they still needed more intense and expensive maintenance) while the U.S. Air Force used them in the Korean and Vietnam Wars for various operations; one of those missions included the failed Bay of Pigs invasion. The U.S. ended up retiring the Commando in 1968, although other countries and civilian businesses continued to use it.
The Commando’s most famous role during WWII was transporting war materials over the “Hump,” which was the name given to eastern end of the Himalayan Mountains between India and China. This hazardous air route supplied China with essential war materials while Japan held the Burma Road. This route was often described as “… the roughest, toughest 600 miles of airway in the world,” and for good reason since hundreds of aircraft were lost along with over a thousand lives. In the end, however, these supply runs were what kept China in the war.

A stock aircraft called C-46 Commando. Built with 117 of the finest parts, its root part is RCSTank1-2.

Built in the SPH in KSP version 1.12.4.

The Commando cruising in peace over Kerbin. This picture was taken after covering 750 km.

Takeoff Instructions

  1. Engage the brakes and turn on SAS.
  2. Full throttle.
  3. Disengage brakes.
  4. Press and hold H (translate forward). It increases the propeller blade deploy angle - hence your speed.
  5. Retract gear when airborne.
  6. Keep tapping H as necessary to keep optimal blade angle (which maximizes thrust). It is recommended to tap rather than press and hold for fine-turning blade angle.
  7. Best blade angle for maximizing thrust during takeoff is 25 degrees, then 30-33 after you’ve decided your heading and began your ascent to cruise altitude. Once you’ve reached said cruising altitude, the best blade angle is 45 degrees - but you do what works best for you.

Be advised that you may need to slowly lower blade angle again at some point. When that happens, translate back using N.

Propeller Controls

  • H: Translate forward (increase blade angle)
  • N: Translate backward (decrease blade angle)

Landing Advice

After you land the plane, (unless you’re all done with it) press and hold N to return the blade angles back to 0 before taking off again.

ARM CONTROLS

  • I / K: Extend/retract arm
  • 5: Open/close claw

Jeb, Genebro, and Burma Four’s plane running on fumes after nearly 1,000 km and 2 hours of flight. The engines had a decent fuel consumption rate, but Burma Four decided to call it quits.

RECOMMENDED CRUISE

Altitude: 7.5 km (~24.6k ft; Class Alpha airspace)
Velocity: 145 m/s (~324 mph)

  • Will increase gradually over time, but this is a good start.

Blade Deployment Angle: 37.5 degrees
Recommended Throttle: ½ (50% if you can’t read the tiny fraction)

EXPECTED RANGE

978 km before immediate landing necessary.

10 km of gliding and less than 1 fuel unit spent, and the plane was able to land in one piece. All occupants were present and accounted for, even Jeb - and no hijackings have been reported.

  • WARNING: Landing can be tricky due to a stubborn tailwheel and the long prop blades.

Historic footage of a young 1st Lt. Burma Kerman (One) standing in front of a C-46 Commando during the Second Imperial Wars. If you took the time to read his service record as well as the testimony from those whom he did supply runs for, he was an excellent pilot who was known to Take pride in giving a smooth ride.

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