Kerbal Electric animated Turbofan engines - New : Low bypass KT-8D jet engine !

[sgt_flyer]

Hello Kerbal Electric is proud to announce it's new line of jet engines !

Those new jet engines feature moving parts

here's the KF6-50 on the static stress test bed,

(click the image to see the animated .gif)

Some engines benefit from two models of air ducts : a short version, better suited to be installed on the wings, and a version with a long air duct, better suited to be installed as a tail jet.

KFM-56-B engine :

KFM-56-B / KF-56T-B

weight and price include the engine mount.

3,601 kg / 3,845 kg(T version)

115561 Kr / 115610 Kr(T version)

105 kN of maximum static thrust.

29 parts for the engines, 9 parts for the mount.

Album :

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KF6-50 engine :

KF6-50 / KF6-50T

Weight and price include the engine mount.

5,473 kg / 6,056 kg(T version)

118149 Kr / 118212 kR(T version)

210 kN of maximum static thrust.

30 parts for the engines, 10 parts for the mount

Album :

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KE-90 engine :

this engine bigger than the previous ones, with a 2.4m maximum diameter, it also use a longer engine mount.

New features (only for the KE-90): Angled front air intake, thrust reverser.

Weight and price include the engine mount.

44 parts for the engine, 11 parts for the mount.

7,194 tons

130616 kR

360 kN of maximum static thrust.

Regarding the thrust reversers :

it's not really 'reverse', but it will provide additionnal drag & stop any thrust an engine could provide (ex, during the spool down time when idling the engines just after landing).

can be used inflight, but the reversers overheats quickly when used against engines running at full power - the reversers deploy automatically if you use the brakes for a long enough time.

Album :

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KT-8-D engine :

those low-bypass jet engines have the same external diameter as the stock engine nacelles (1.4m)

- only downside of building so small, is that the various parts are so close in diameter that there's some texture Z-fighting when you zoom out

Two different mounts avaible (1 for mounting onto wings, 1 for mounting onto the hull).

Weight and price include the engine mounts.

3,641 kg (wing mount) / 3,685 kg(T version)

43088 Kr (wing mount) /43038 kR(hull mount)

105 kN of maximum static thrust.

32 parts for the engines, 10 parts for the wing mount, 6 parts for the hull mount.

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Demonstration flights are avaible on our flying testbeds.

Three engine version for the KFM-56 (including a tailjet)

two engine version for the KF6-50.

Four engine version for the KT-8D (2 wing mounted, two hull mounted)

Four engine cargo plane version for the KE-90

Flying testbeds operations :

Action group 1 : toggle the flaps

Action group 0 : toggle the engines. (for easy shutdown of the engines)

the Brakes also trigger the A.I.R.B.R.A.K.E.S

additionnal commands for the KE-90 Cargo test bed :

if you use the brakes for more than several seconds, the thrust reversers will deploy, stopping the engines thrust, and creating drag.

Action group 2 : enable the parking brakes. (enable the landing gear brakes without triggering the thrust reversers)

engine startup :

with SAS desactivated, trim the roll of the whole aircraft to the right (alt + E by default) - (a roll trim between 50% and 100% is easier to see the spinning effect - more and the effect is harder to see )

then hit space to stage all the engines at once, the fans should start spinning. (the KT-8D spinning effect is nice around 50 - 60% roll trim)

reset your aircraft's roll trim to 0 (alt + X by default) and go full throttle

- KE-90 special notice : the KE-90 bearing has been mounted in a reversed position, because of the angled intake at the front of the engine - to make it spin in the same direction as the other, you need to trim it to the left instead of to the right (Alt + Q by default on Qwerty keyboards).

take off :

you should be able to easily take off once you reach 70 - 80 m/s (either with flaps or not) then those planes should be pretty stable (you can fly with SAS disabled and a bit of trim)

Landing :

you can land pretty easily with those - you can use the flaps and deploy the landing gear to reduce your airspeed before landing (in addition to reducing engine throttle)

landing with around 60 - 70 m/s of airspeed.

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Engine mounting on a new plane :

you can easily add the engines to a new plane.

place the engine mount first on the wing (the root part of the subassemblies is one of the landing gears making up the mount) (you can use symmetry without problems - just don't forget to remove the symmetried part landing gear actions from the action groups - symmetry removes the parameters regarding the landing gears making up the mount)

if your wings are angled, activate the rotation tool, select the mount's root part, and switch to 'absolute mode', (F key by default) and stay in 'snap' mode. - then rotate it a bit, it will easily snap parallel to the ground, and parallel to the plane's length )

once the mounts are placed where you want, add the engines subassemblies 1 by 1 on each mount. (each mount has a cubic strut, where the root part of the engines can directly attach)

.craft files :

the engines + mounts are directly avaible as subassemblies, if you want to disassemble them or add them to your jetliners :

KFM-56-B engine : http://www./download/2y2uag8waa922ri/KFM-56-B.craft

KFM-56T-B engine : http://www./download/ce5vpm6ghea9ahy/KFM-56T-B.craft

KFM-56 engine mount : http://www./download/hahdqgsitpu60yj/KFM56+mount.craft

KF6-50-B engine : http://www./download/yut3807ofrfa31u/KF6-50-B.craft

KF6-50T-B engine : http://www./download/sy6sp5ardk4tr9m/KF6-50T-B.craft

KF6-50 engine mount : http://www./download/qlp16c760bvps6l/KF6-50+mount.craft

KE-90 Engine : http://www./download/67jxfeyzf9tbb32/KE-90.craft

KE-90 Engine mount : http://www./download/1b90jozu8zw9161/KE-90+mount.craft

KT-8D engine : http://www./download/0iyrr1ibzrl9iir/KT-8D.craft

KT-8D wing mount : http://www./download/ljhuy7m87zj9119/KT-8D+wing+mount.craft

KT-8D hull mount : http://www./download/onbn08esy2zb5te/KT-8D+hull+mount.craft

SPH .craft :

KFM-56 tailjet flying testbed : http://www./download/dwavv8r0myuzm8p/KFM-56+Tailjet+flying+testbed.craft

KF6-50 flying tesbed : http://www./download/3ijld2h5wm7taft/KF-6-50+Flying+testbed.craft

KE-90 Cargo plane testbed : http://www./download/048sredqyykwtpk/KE-90+Cargo+flying+test+bed.craft

KT-8D flying testbed : http://www./download/74jogc79r32m5bl/KT-8D+Flying+Tesbed.craft

Any owner of the first versions of KFM-56 and KF6-50 engines, please bring them back, we will overhaul the engines with a new bearing and a slightly longer nacelle to fix a problem with the old bearings (the download links have been updated).

Have fun

Edited May 24, 2015 by sgt_flyer

[SHiftER2O]

Aaaaawwwww yeaaaaaaaah

[Aanker]

Amazing @_@

[burnoutforzai]

>.>

[Mad Rocket Scientist]

Wow, this is incredible. If you need me, I'll be building transport planes all week. Unfortunately I can't rep you... yet.

[Jetenginestar]

They look Awesome! Definately Building an DC-10/ MD-11 soon because of the perfect size ratio of the engine and MK3 fuselage xD

Edit: Just curious, why did you used the basic Jetengine? is it because it is more fuel efficient than the turbojet?

Edited May 18, 2015 by Jetenginestar

[sgt_flyer]

nah that's because it looks better with the rest of the engine than the turbojet does - the 'fairings', even open ended, prevent any 'occluded' part from being activated. (even if the engine is only halfway buried inside)

though i have a 2.4m engine version in the works for bigger aircrafts that uses two turbojets per engine for the most massive aircrafts (plus a thrust 'reverser' (inihibitor/drag inducer would be more correct, but oh well ^^))

Edited May 18, 2015 by sgt_flyer

[sgt_flyer]

Hello

Any owner of the first versions of KFM-56 and KF6-50 engines, please bring them back, we will overhaul the engines with a new bearing and a slightly longer nacelle to fix a problem with the old bearings (the download links in the 1st post have been updated).

Version B of the KFM-56 engines (standard and tailjet) and version B of the KF6-50 (standard and tailjet) are now directly avaible with the new bearing.

the new versions of the engines have 4 more parts than the original version (for the bearing) and have a slightly longer nacelle, to house the new bearing - but, they are wayy more reliable than the old ones (no more jams constated, be it inflight with high G manoeuvers, or on the new shaky test bench)

the demonstration aircrafts have been upgraded with the B version of the engines.

Here's the new bearing, and how it's housed inside the engine nacelles :

here's pictures of the new Shaky testing bench (with a preview of the next engine, the KE-90 )

the test bench allows for way more shaking than the original version (as you can see on the pictures, much more flexible ^^) - this allowed me to tweak those new bearings

Edited May 19, 2015 by sgt_flyer

[sgt_flyer]

Hello

the new larger KE-90 engine is now avaible as a subassembly with it's engine mount, with the same bearing that was added to the B versions of the previous engines.

uses 2 turbojets, for 360kN of static thrust per engine !

new Features for the KE-90 engine : angled nacelle intake, and thrust reversers !

Demonstrator cargo plane avaible for testing out the new engines

Demonstrator braking test, with thrust reversers deployed :

[SHiftER2O]

Hello

the new larger KE-90 engine is now avaible as a subassembly with it's engine mount, with the same bearing that was added to the B versions of the previous engines.

uses 2 turbojets, for 360kN of static thrust per engine !

new Features for the KE-90 engine : angled nacelle intake, and thrust reversers !

http://i.imgur.com/6qpicCBl.jpg

Demonstrator cargo plane avaible for testing out the new engines

http://i.imgur.com/handx1hl.jpg

Demonstrator braking test, with thrust reversers deployed :

http://i.imgur.com/WjBi4CRl.jpg

It looks quite adorable xD

[spaceBrezel]

they work great!

had to try both planes.

[Columbia]

I have seen this multiple times in the WIP thread multiple times, glad to see it's finished!

I will rep you again.. one day.

damn you rep-spread warning!

[Hobbes Novakoff]

Wow, the new fairings are awesome for this sort of thing. You'd never be able to do this with any mod.

[ThatGuyWithALongUsername]

Oh my...

+rep indeed! I've got to try these out now!

[Jetenginestar]

I hope to release her tomorrow, the engines look sweet on her

Edited May 21, 2015 by Jetenginestar

[sgt_flyer]

will you do barrel rolls with it too ? like tex johnston ?

[SHiftER2O]

I hope to release her tomorrow, the engines look sweet on her

http://i.imgur.com/TLgBxn4.png

http://i.imgur.com/jpWaeoJ.png

How did you get those pictures?

[Majorjim!]

How did you get those pictures?

Camera tools my good man.

sgt_flyer This is amazing. You are a true innovator man. I have said it before but I think you are one of the most talented builders on this forum. You constantly push limits and don't rest on your laurels. Making new, exciting and very clever designs. Keep it up mate!

[ZLM-Master]

This is really beautiful spin FX & great engine overall . The new fairing allow creative building that i hadn't expect !

You are a Genius !

EDIT : I try to reproduce your engine & i can't find how you stop fairing without closing them ?!?

I do not pick the good part or maybe it's a tweak of the config file ?

& your craft is very fun !

Edited May 21, 2015 by ZLM-Master

[sgt_flyer]

@ZLM 0 config tweaks , i play full stock (i'm not even using any stock bug fixes) -

For creating open ended fairings, i use this technique i posted in the open source thread to create those. the engines nacelles use the same technique too)

http://forum.kerbalspaceprogram.com/threads/43086-Open-Source-Construction-Techniques-for-Craft-Aesthetics/page71

Basically, i attach a conical part to the fairing's baseplate, then draw the shape i want until i reach the conical part, where i 'close fairing' onto one of the cone's edges. When you remove the cone for the first time, the fairing disappears. At this point, you only need to use the 'undo' command to revert the change (the fairing will still be absent, the conical part will reappear) then directly use the redo command (ctrl+Y) - the cone will disappear, and the open ended fairing will appear in it's place. You can then save the fairing as a subassembly.

Note, when you then attach this fairing through one of it's free nodes, the game will ask you to redraw the fairing - exit fairing building by rightclicking, then once again use the undo / redo commands (the fairing part will disappear, then reappear with the custom shape you made)

[ZLM-Master]

@ZLM 0 config tweaks , i play full stock (i'm not even using any stock bug fixes) -

For creating open ended fairings, i use this technique i posted in the open source thread to create those. the engines nacelles use the same technique too)

http://forum.kerbalspaceprogram.com/threads/43086-Open-Source-Construction-Techniques-for-Craft-Aesthetics/page71

Basically, i attach a conical part to the fairing's baseplate, then draw the shape i want until i reach the conical part, where i 'close fairing' onto one of the cone's edges. When you remove the cone for the first time, the fairing disappears. At this point, you only need to use the 'undo' command to revert the change (the fairing will still be absent, the conical part will reappear) then directly use the redo command (ctrl+Y) - the cone will disappear, and the open ended fairing will appear in it's place. You can then save the fairing as a subassembly.

Note, when you then attach this fairing through one of it's free nodes, the game will ask you to redraw the fairing - exit fairing building by rightclicking, then once again use the undo / redo commands (the fairing part will disappear, then reappear with the custom shape you made)

I got one unintended successful fairing shape ( with ctrl Z ) but i wasn't expect that was the good method and was unable to reproduce it

THX for the tip & for the link !

[SHiftER2O]

Camera tools my good man.

sgt_flyer This is amazing. You are a true innovator man. I have said it before but I think you are one of the most talented builders on this forum. You constantly push limits and don't rest on your laurels. Making new, exciting and very clever designs. Keep it up mate!

Where oh where can I get this glorious camera tools my good man?

Indeed he is sgt_flyer ftw!

[JPmAn]

Can you make a JT8D version?

[sgt_flyer]

I'll see what i can do

[sgt_flyer]

Hello the new KT-8D low bypass jet engines have been added to the original post (this engine has a much smaller diameter than the high bypass engine (only 1.4m diameter !) - required to build a new smaller diameter bearing