Kerbal Express Airlines - Regional Jet Challenge (Reboot)

[Kernel Kraken]

@Cabbink, I meant with out any other accounts. Currently too lazy to make an imgur account/ kerbal X account. :/. I saw someone else on another thread mentioning it, but forgot what it was. Sorry if im just taking up thread space but i am currently not in a position to make a new account because of forces beyond my control. 

 

Ignore this dumb ramble

Edited September 15, 2017 by TheMadKraken2297
Ignore me

[TheGuyNamedAlan]

On 11/09/2017 at 6:17 AM, Mjp1050 said:

For all categories, Range will be calculated by fuel capacity / burn rate * speed / 1000m at the recommended cruising speed & altitude.

are you sure this formula works? i ended up with 170 km and my test flight did a lot more

 

shouldn't the formula be this?

fuel capacity/burn rate*60=how many hours this plane can fly for

---------------------------------------

speed is in m/s so it would be 

(speed*60*60=m/h)/1000=km/h

---------------------------------------

the final equation would be

((speed*60*60)/1000)*((fuel capacity)/(burn rate*60))=range in km

 

[ImmaStegosaurus!]

I'm pretty sure "fuel capacity / burn rate * speed / 1000m" is good.
Amount of fuel divided by the flow gives us the number of seconds fuel lasts, multiplied by the speed gives us the distance covered within that time and dividing by 1000 rounds madly long number into nice kilometres. Actual range is bit longer than calculated one using this formula since aircraft becomes lighter and faster over the time as fuel is spent.

Even if the formula was wrong, it's fair as everyone uses the same way to measure performance.

[TheGuyNamedAlan]

TheGuyNamedAlan presents: Some Random Seaplane 100 aka SRS-100

craft:

https://kerbalx.com/crafts/34296

 

optimal speed: 170m/s 

optimal alt: 5000

can land on both sea and land

carries 16 passengers

Cost: 17,720,000

 

Action Groups:

1: air brakes

2: afterburners

 

Description:

this light seaplane can get you across continents. out test has shown that it can reach the other side of the planet without refuelling. this plane features very detailed and complex lights system to let you land in the dark no matter where you are on the planet.

 

 

it would be nice if you guys could subscribe

 

 

Edited September 15, 2017 by TheGuyNamedAlan

[TheEpicSquared]

@Mjp1050 I was thinking of making a variant of my ISRJ-32, but I think I'll wait for your feedback on the base version first.  

[Haruspex]

Okay, let' s see if this qualifies.

Roley & Ferbur Kerman proudly present the K-57 "Tern" in the Small Regional Jet Category.

- Passenger Capacity: 32

- Mass (fully laden): 12.35 t 

- Unit cost: 20671000 kerbucks

- Fuel Capacity: 390

- Cruising altitude: 6000 m

- Cruising speed: 285 m/s

- Propulsion: 1x Wheesley 

- Fuel consumption at cruising altitude: 0.10-11 

- Range:  1000 km

- Takeoff speed: 45-50; Landing speed: 50-60

- 38 parts

 

Our trademark Theta-Wing (tm) design offers incredible maneuverability, safe landings and epic range for your aerial journeys. During the test flight, the Tern took off from KSC and successfully landed on the Kerbin's North Pole with 17 fuel remaining! 

https://kerbalx.com/haruspex/Tern

Edited September 16, 2017 by Haruspex

[StupidAndy]

turns out I'm terrible at making planes

does anyone know how to make wings?

Edited September 17, 2017 by StupidAndy

[Haruspex]

Entry update: now we're also offering the 45-part, 14-ton K-57B model with 40 passenger capacity and extended range provided by 490 kallons of fuel! The "Tern B" also comes with an onboard navigation computer by Probodobodyne, Inc. and autopilot capable of fully autonomous flight.

The unit cost for the model B is 23761000 kerbucks.

https://kerbalx.com/haruspex/Tern-B

 

 

Edited September 17, 2017 by Haruspex

[Kernel Kraken]

Wait..... Will something huge count? like a new 'Goliath' category? If so...... http://steamcommunity.com/sharedfiles/filedetails/?id=1136601623

[Mjp1050]

Test Pilot Review: @dundun92's Airborne Technologies - URJ-101

Figures as Tested:

• Price: 21,702,000
• Fuel: 1110 kal
• Cruising speed: 290 m's
• Cruising altitude:  6500 m
• Fuel burn rate: 0.11 kal/s
• Range: 2900 km

Review Notes:

To begin with, we'd like to say that the URJ-101 is a beautiful plane. Everything about its appearance screams "modern," and we absolutely love the exterior. This plane's an absolute delight to fly, once it's in the air, but a takeoff speed of 60 m/s meant that the URJ-101 can't be used on smaller runways. The fuel efficiency is decent; it's 0.11 kal/s is slightly above the average, but it's range of 2900 km is more than enough to make up for it. We like how the engines were placed beneath the wing, rather than directly behind the aircraft; it makes pitching up much easier and reduces vibrations in the cabins, allowing for a much more comfortable ride.

However, there is one major aspect of the URJ-101 that we can't wrap our heads around. The interior of the aircraft does not match up with the exterior:

We're not sure why - or how - Airborne Technologies eschewed traditional Euclidean geometry, but the end result is quite disconcerting. It's certainly an incredible achievement that they managed to create a pocket universe at all, especially for less than 22,000,000, but we do wonder if airplane cabins are really the wisest use of this technology.

The Verdict:
That interior is so gosh-darn freaky that we really don't think that we can put this into commercial use. Ordering one for testing purposes, though

Edited September 17, 2017 by Mjp1050
typos

[MiffedStarfish]

Might enter this, probably in the supersonic catergory.

[reachmac]

Hi all, I have my Kavro 730 Supersonic airliner for submission. The cost of the plane ( with a full fuel load approx. 11000 units ) is 223,119,000. Its cruise altitude is about 20000-21000m . At this altitude it can travel at 1000 m/s but will speed up as fuel is burnt. After take off you should pull up to about 30 degrees and gain altitude as soon as possible. Reduce climb at about 13000 and climb at 10 degrees.

I ran a test of this plane it used 2000 units of fuel for the climb but when at altitude it only uses 2 units of fuel per second at cruise. This gives it a range of approximately 4500 Km. It can carry 72 passengers. It has a crew of 2.

The design of the plane is based on a bomber design from the early 70's aimed at replacing the V-Force. I modified it from the bomber variant.

Its take off speed is slightly over the limit when fully fueled. Make sure the plane is landing at under 70 m/s. Use the air-brakes to reduce speed on approach. Parachute is usually unnecessary. 

 

Pitch:

introducing the latest in Kaviation technology, the Kavro 730 is one of the fastest plane in the sky rivaled by only the fastest fighter jets. Allow your customers to enjoy their journey to every corner of the globe  in the ultimate conform. This modified bomber allows maximum speed and ample room for the passengers. There is an addition cargo bay for all luggage. Should your needs require it the plane could be expanded with minimal ease to fit more passengers on board.

 

File:

https://drive.google.com/file/d/0BwlRSAM_lgU7MUVaX1l2ZzB6VHM/view?usp=sharing

https://drive.google.com/open?id=0BwlRSAM_lgU7dmI0NlhTMXlVOTg

 

[no_intelligence]

The "Kombardier" Aeroplane Ltd. is proud to present you its newest Designs.

The Kombardier 200, 300-series and 400-series! They offer you everything you could possibly want, from Turboprop, small Regional Jet to a medium-sized one, and all of them exceed the wanted criteria by far.

 

Kombardier 300 and 301 - Turboprop

The Kombardier 300-series appear as a modern, slim and sleek V-Tail design for redruced drag. At a recommended cruising speed of 145m/s they burn 0,05-0,06u/s which results in a range of 2320km for the 24-seating 300 and 1933km for the larger 32-seating 301.

Take-Off and landing is rather simple, as they don't even need flaps, at less than 60m/s. For landing on short runways, reverse thrust an be activated by pressing "2".

Kombardier 300

Kombardier 301

Spoiler

 

Kombardier 400 and 401 - Small Regional Jet

The Kombardier 400-series might look a bit outdated, but the V-Tail and Taildragger design makes them fuel-efficient, very ground manouverable and keeps the take-off and landing speeds low. Speaking of which, 60-70m/s is the tested and approved speed.

Recommended cruise is 240m/s at 5000m, which results in a burning rate of 0,08-0,09u/s and a range of 5700km for the Kombadier 400 as a 32-seater and the 401 as a 40-seater with 4000km. For landing on short runways, the thrust reverse is set to "2".

Kombardier 400

Kombardier 401

Spoiler

 

Kombardier 200 - Medium Regional Jet

The Kombardier 200 is, apart from the not requirement-fitting Kombardier 100-series, the largest plane made by Kombardier at the moment. It features a very fancy droop-nose Cockpit, for a better visibility during landing and takeoff, a brand-new and market-leading design, with just one large engine at the back for lower maintenance cost and optimum fuel efficiency.

Seating 72 Kerbals, it takes off and lands at low speeds of just 60-70m/s and does that without using flaps. It cruises at 250m/s at 5000m altitude, the high-bypass turbofan then burns just about 0,15u/s which results in a range of 4250km. Button "2" toggles the reverse thrust and "1" droops the nose.

Kombardier 200

[Cabbink]

Going to submit a bunch of planes soon(next few days). Be prepared!

 

[roboslacker]

Is an 85m/s takeoff speed acceptable?

[sevenperforce]

Ripoff Aerospace would like to submit two entrants to Kerbal Express Airlines, each a variant of the same craft, but for two separate categories.

Medium Regional Jet: Generous Spirit

The Generous Spirit is a fresh, unique take on long-distance passenger transport. With our proprietary CabinLift technology, passengers enjoy roomy cabins embedded within the wing, giving every seat a spectacular view of Kerbin's oceans and countrysides.

Careful observers may notice a superficial resemblance of the Generous Spirit to the famous K-2 Spirit stealth bomber; any resemblance, however, is guaranteed to be 100% coincidental and not at all a ripoff. Our design team used groundbreaking IRM (Iterative Reversion Modeling, patent pending, all rights reserved) technology to determine the optimal design for a flying wing passenger aircraft, and this was the result. Really.

Spoiler

At just over $91 million, fully fueled, the Generous Spirit may not be the cheapest bird in Kerbal Express's hangar, but the stately transportation mode and luxurious cabins will make it a flagship for beyond-first-class passengers. Five streamlined turbofan engines make it both efficient and powerful, allowing up to three engine failures. 

Pitch-control surfaces at the front and rear of the aircraft ensure sufficient control authority, and the canards act as flaps for shorter takeoff and landing at low speeds. Pilots may wish to program an additional thrust-reverse function for even shorter landings.

The Generous Spirit takes off without control input just under 80 m/s on flaps alone. The vertical stabilizers and dual rudders help damp yaw, but well-trained pilots are recommended due to this plane's tendency to slip while banking.

The large wing area means that the Generous Spirit is best suited for lower-altitude cruising flight, giving the customers an excellent view. Seating 80 passengers without difficulty, it is an excellent addition to your fleet.

A cruising speed of 263 m/s allows a post-cruise range of around 1,700 km.

Craft file here.

Supersonic Jet: Transcendent Spirit

At first glance, the Transcendent Spirit may seem extremely similar to its slower cousin. However, there are several groundbreaking upgrades which make it the premiere supersonic passenger aircraft of Kerbin's skies. Three of the turbofan engines have been replaced with ridiculously powerful turboramjets, and several passenger cabins have been swapped out for additional fuel tanks to handle the increased fuel requirements of the larger engines.

Spoiler

Despite the improvements, the price actually dropped considerably, to just under $79 million. The Transcendent Spirit retains two of the same turbofan engines as its slower cousin, enabling it to take off and land quietly from regional airports, preventing noise complaints. 

The Transcendent Spirit retains the same programmed flaps, but adds programming for activation of the ramjets. Removal of the vertical stabilizers and rudders makes this aircraft slightly more prone to yaw slippage, but gimbal authority on the ramjets helps damp this during high-powered flight.

Flaps are strongly recommended for low-speed takeoffs. The pair of turbofans takes much longer to get the aircraft up to takeoff speed; ramjets may be used for takeoff assist on short runways but this may violate local noise ordinances and anger birds.

The turbofan engines allow the aircraft to reach unpopulated areas before firing up the turboramjets.

Pilots will thrill at the power of these high-bypass turbocharged ramjet engines. They allow rapid climb to cruising altitudes. As the aircraft climbs in speed and altitude, the turbofan engines automatically shut off, routing their air intake to the ramjets.

The 48 passengers this supersonic jet can carry are well in front of the engines, enabling a fairly quiet ride.

Once Mach 1.5 is reached, the ramjets rapidly push the aircraft up to cruising speed.

Optimal cruise is reached at over 18.5 km of altitude and speeds in excess of Mach 2.8. The streamlined design allows low drag and the large fuel capacity provides a post-cruise range of over 2,300 km, vastly eclipsing the requirements of Kerbal Express extended-range variants. For shorter routes, even higher efficiency may be obtained by taking off with a lower fuel load. 

Our test passenger focus group reported that flying in the Transcendent Spirit reminded them of heaven. We did not ask whether this was due to proximity to outer space, the luxurious cabins, or the fear of impending death at seeing plasma heating at nearly half of orbital velocity. 

Craft file here.

 

[Guest]

On 9/17/2017 at 2:54 PM, Mjp1050 said:

Test Pilot Review: @dundun92's Airborne Technologies - URJ-101

Figures as Tested:

• Price: 21,702,000
• Fuel: 1110 kal
• Cruising speed: 290 m's
• Cruising altitude:  6500 m
• Fuel burn rate: 0.11 kal/s
• Range: 2900 km

Review Notes:

To begin with, we'd like to say that the URJ-101 is a beautiful plane. Everything about its appearance screams "modern," and we absolutely love the exterior. This plane's an absolute delight to fly, once it's in the air, but a takeoff speed of 60 m/s meant that the URJ-101 can't be used on smaller runways. The fuel efficiency is decent; it's 0.11 kal/s is slightly above the average, but it's range of 2900 km is more than enough to make up for it. We like how the engines were placed beneath the wing, rather than directly behind the aircraft; it makes pitching up much easier and reduces vibrations in the cabins, allowing for a much more comfortable ride.

However, there is one major aspect of the URJ-101 that we can't wrap our heads around. The interior of the aircraft does not match up with the exterior:

We're not sure why - or how - Airborne Technologies eschewed traditional Euclidean geometry, but the end result is quite disconcerting. It's certainly an incredible achievement that they managed to create a pocket universe at all, especially for less than 22,000,000, but we do wonder if airplane cabins are really the wisest use of this technology.

The Verdict:
That interior is so gosh-darn freaky that we really don't think that we can put this into commercial use. Ordering one for testing purposes, though

What in the world is going on!?! That wasn't purpose. Ill investigate when I have time.

[Cabbink]

On 9/17/2017 at 1:54 PM, Mjp1050 said:

Test Pilot Review: @dundun92's Airborne Technologies - URJ-101

Figures as Tested:

• Price: 21,702,000
• Fuel: 1110 kal
• Cruising speed: 290 m's
• Cruising altitude:  6500 m
• Fuel burn rate: 0.11 kal/s
• Range: 2900 km

Review Notes:

To begin with, we'd like to say that the URJ-101 is a beautiful plane. Everything about its appearance screams "modern," and we absolutely love the exterior. This plane's an absolute delight to fly, once it's in the air, but a takeoff speed of 60 m/s meant that the URJ-101 can't be used on smaller runways. The fuel efficiency is decent; it's 0.11 kal/s is slightly above the average, but it's range of 2900 km is more than enough to make up for it. We like how the engines were placed beneath the wing, rather than directly behind the aircraft; it makes pitching up much easier and reduces vibrations in the cabins, allowing for a much more comfortable ride.

However, there is one major aspect of the URJ-101 that we can't wrap our heads around. The interior of the aircraft does not match up with the exterior:

We're not sure why - or how - Airborne Technologies eschewed traditional Euclidean geometry, but the end result is quite disconcerting. It's certainly an incredible achievement that they managed to create a pocket universe at all, especially for less than 22,000,000, but we do wonder if airplane cabins are really the wisest use of this technology.

The Verdict:
That interior is so gosh-darn freaky that we really don't think that we can put this into commercial use. Ordering one for testing purposes, though

Woops. Forgot to stabilize the extradimensional stabilizer, am i right?

[Guest]

25 minutes ago, Cabbink said:

Woops. Forgot to stabilize the extradimensional stabilizer, am i right?

Yes, I did.

[Kernel Kraken]

6 hours ago, sevenperforce said:

 

Careful observers may notice a superficial resemblance of the Generous Spirit to the famous K-2 Spirit stealth bomber; any resemblance, however, is guaranteed to be 100% coincidental and not at all a ripoff. Our design team used groundbreaking IRM (Iterative Reversion Modeling, patent pending, all rights reserved) technology to determine the optimal design for a flying wing passenger aircraft, and this was the result. Really.

Not to be a Snob, but it seems more like the https://en.wikipedia.org/wiki/Northrop_Grumman_B-21_Raider

It is missing the 2 extra 'wedges' by the side of the main triangle that the K-2 has.

Still a cool plane!

 

https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwjjkffLh7LWAhVM2GMKHe4IDdMQjRwIBw&url=https%3A%2F%2Fbeyondthecusp.wordpress.com%2F2016%2F02%2F29%2Fnorthrop-grumman-long-range-b-21-bomber-plans-unveiled%2F&psig=AFQjCNFitvit2161MXxHwMjiq1qyzZhMiA&ust=1505938326723401

(Sorry, I'm an (in the words of Trump) a YUGE nerd about this kind of thing and I hate seeing Mis-Info about plane design )

Edited September 19, 2017 by TheMadKraken2297
REASONS. Why are you even reading this?

[Bombstar10]

NOW INCLUDING AN INTERNAL SAFETY VALIDATION! (In new post. Only applies to 'Coming Soon' aircraft. Other aircraft did not qualify for the safety validation)

The Space Company Presents: The Universal Transport Mark One Civilian (UT-1B)

Specifications:

• Class: Medium Regional Jet
• Cruising Altitude: 3000-3500m
• Cruising Speed: 240m/s
• Consumption Rate: 0.35-0.75 kal/s
• Estimated Range: 795-1704km
• Seating Capacity: 96
• Price: $202,179,000 (We are a government contractor)
• Action Groups:
  • 10: Currently an optional spoiler from military design

The UT series of aircraft is an old yet reliable design of transport used by the TSC for efficient movement of materials to different locations. The UT Mark One B is a modified version of the original platform dating back 52 years (This design was quickly replaced due to complaints about stability when banking). To meet the demands of the brief presented here the aircraft equipment storage bays have been replaced by 96 cloth backed seats (easy to clean, miscellaneous used vinyl seats from the failed Duna Transport Program are available). If there is a serious consideration from Kerbal Express Airlines in the use of this aircraft, additional modifications or the use of later, more efficient platforms can be discussed. 

Disclaimer: Please Note this aircraft has not passed any of the KAA aircraft safety regulations. Vinyl suggested for easier blood removal. Moreover, we are not responsible for any loss of life caused by excessive wing flex when performing heavy pitch or roll actions. 

Download Link: https://drive.google.com/open?id=0BxZ939xefHY_VzU0Y0FYQTNQT1k

The Space Company Presents: The "Grizzly" Super Transport Civilian (ST-3 Civilian)

• Class: Jumbo Jet
• Take-off speed 50-60m/s
• Cruising Altitude: 3000m
• Cruising Speed: 225m/s
• Fuel Capacity: 18314kal
• Consumption Rate: 1.68kal/s
• Estimated Range: 2453km
• Seating Capacity: 284
• Price: $537,723,000
• Flaps can be used to slightly reduce take-off speed and or assist landing.

We are proud to show yet another modified military transport design for use as a commercial airliner. The ST-3 is a tried and true platform that suffers only minor penalties when converted to a civilian design*. Its 8 large duel rotor design engines allow for easy use at any fuel, passenger, or cargo loads. Following conversations with our engineers, we felt we should do some form of safety testing using this aircraft. Thus, in the case of a failure of the wing structures of the aircraft a safety structure is in place to allow the aircraft to land using only two of its eight engines.

Emergency safety structure in action:

Disclaimer * Conversion to civilian design has caused a minor stability issue under moderate to hard turns. This can potentially culminate in the loss of either one or both wings of the aircraft. It should be noted however the aircraft has a built-in safety backup allowing the aircraft to land with only two engines.

[Updated to fix wingtip] Download Link: https://drive.google.com/file/d/0BxZ939xefHY_Q1R0Wkx4blFDdEk/view?usp=sharing

Edited October 6, 2017 by Bombstar10
Realized minor mistake that might ruin aircraft entirely.

[no_intelligence]

What a beast! 

[Cabbink]

@Mjp1050 are you going down the line, or just choosing the best? I really want my plane tested either way.

[Cabbink]

On 9/18/2017 at 2:01 PM, roboslacker said:

Is an 85m/s takeoff speed acceptable?

I think no, unless it's a considerably large plane. I have my smaller planes take off between 50 m/s to 80 m/s, at tops. Try to lower your takeoff speed.

[sevenperforce]

8 minutes ago, Cabbink said:

On 9/18/2017 at 4:01 PM, roboslacker said:

Is an 85m/s takeoff speed acceptable?

I think no, unless it's a considerably large plane. I have my smaller planes take off between 50 m/s to 80 m/s, at tops. Try to lower your takeoff speed.

Add action-group-deployable flaps, add canards, make your rear gear closer to the body than the front gear, or some combination of the three.

Remember that flaps should be as close as possible to the aircraft CoM for maximum effectiveness. Too far behind, and they tend to force the nose down, which will prevent takeoff. Canards are good for slower takeoffs because they add to overall lift while also pulling the nose up to increase overall AoA.