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Fast RC Jet

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Old 09-29-2009, 12:17 PM
  #1
Hanslitjens
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Default Fast RC Jet

Hello everybody,

This is my newest Jet i'm flying with. I's a scout. Powered by a Jetcat P160SE. The take off weigt is 6,5 Kg.
in the video the turbine isn't at his max RPM. The last flights the p160 is at his max RPM.

Enjoy the video:

[youtube]http://www.youtube.com/watch?v=dTHWBSluUjU[/youtube]
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Old 09-29-2009, 01:02 PM
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Very cool. How fast is it going?
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Old 09-29-2009, 01:20 PM
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Jim Cattanach
 
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Default RE: Fast RC Jet

The guy with his hand on the starter is an accident waiting to happen. That turbine is likely to suck in his fingers.[X(][X(][X(].
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Old 09-29-2009, 01:33 PM
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Default RE: Fast RC Jet

Thats fast, I recon you are flying in the 350mph area.

Jason
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Old 09-29-2009, 02:02 PM
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Guillermo Ibanez
 
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Quote:
ORIGINAL: Hanslitjens

Hello everybody,

This is my newest Jet i'm flying with. I's a scout. Powered by a Jetcat P160SE. The take off weigt is 6,5 Kg.
in the video the turbine isn't at his max RPM. The last flights the p160 is at his max RPM.

Enjoy the video:

[youtube]http://www.youtube.com/watch?v=dTHWBSluUjU[/youtube]
Could not enjoy the video.....just enjoy the audio......too fast........
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Old 09-29-2009, 05:12 PM
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Default RE: Fast RC Jet

You don't fly it, you aim it! Where is the fuel for a five-minute flight?

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Old 09-29-2009, 05:21 PM
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erbroens
 
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Very nice and fast! [sm=thumbs_up.gif] I´m also curious at its speed.

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Old 09-29-2009, 08:12 PM
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COOOOL.......I am going to build one !!!!!!!!!!!!!!!!!
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Old 09-30-2009, 09:48 AM
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Default RE: Fast RC Jet

And YOU should know!
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Old 10-01-2009, 02:51 AM
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Default RE: Fast RC Jet

I think those airframes are used for pulsejet flying too.
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Old 10-01-2009, 10:01 AM
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COOOL !!!
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Old 10-01-2009, 12:05 PM
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Default RE: Fast RC Jet

Thats right. I fly also with pulsejet with this model. The speed we dont know. We think about 600 km/h (370MPH). In a few weeks we will put an speedsensor in the plane.

I have 2L kerosine. The fuel is in the wings.
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Old 10-02-2009, 01:15 AM
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Hanslitjens

Hi, so who makes this jet, whats its size normaly powered by, any details would be appriciated...
Chrs Jeremy.
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Old 10-02-2009, 03:09 AM
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Some details:

The model is selfmade, we make everything by ourselve. But the orginal is from RC-Tronics-Topp-Rippin.

Servos: 2
wingspan: ca. 1.200 mm
length : ca. 1.350 mm
Turbine (Normally) : 60N - 90N
Weight : ca. 4.5 Kg (empty)
Feul: 2 x infusion 1L

I have this model also pulsejet powerd. The pulsejet is about 60-70N.
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Old 11-17-2016, 09:33 AM
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Day Chahroudi
 
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Version:1.0StartHTML:0000000176EndHTML:0000008728S tartFragment:0000003139EndFragment:0000008692Sourc eURL:file://localhost/Users/daychahroudi/Desktop/Model%20Jet.docVERY FAST AEROBATIC MODEL JET
[IMG]file://localhost/Users/daychahroudi/Library/Caches/TemporaryItems/msoclip1/01/clip_image002.jpg[/IMG]


Speeds of 600 mph should be possible, while maintaining verylow drag and high maneuverability at all speeds and g-loads because:

Wetted area and frontal area are absolutely minimal
Wings and tail are small, swept, and high aspect ratio, withsupercritical airfoils
Low wing/body shock and interference drag
Turbojet exhaust blends smoothly with airflow
Turbojet fed unobstructed ram air pressure
Light weight from simple, small shape

The long tail booms allow large deflections of the full spanflaperons -- for low stall speed in spite of a high wing loading for les****g. Flap deflections are largeduring takeoff and landing and small during high-g maneuvering. The wing’s high aspect ratio reducesinduced drag at high g, but stalls more easily and violently than a deltawing. Preferably, onboard sensorsof airspeed, angle of attack, and g-load will control in real time the flapdeflections for maximum L/D, and also control the elevators to prevent stall.

The fuselage is an aluminum pipe fitted to the diameter ofthe turbojet that is inside it. It’s circular leading edge is thickened and rounded to accept varyingintake flow rates without turbulence. It delivers air to the turbojet at ram pressure and high volume. The exhaust leaves the turbojet with adiameter that is smaller than the fuselage pipe. Where the exhaust has expanded to the pipe’s diameter, thepipe ends -- so that the exhaustdoes not contact the pipe and loose thrust.

Since the exhaust has expanded to the fuselage diameter whenit leaves the fuselage, it blends with the airstream with minimum drag. The constant diameter of the fuselageand the mid-fuselage wing placement minimize wing/body interference drag and,at high subsonic speeds, prevents wing/body shock wave drag.

Fuel is carried in the wings, which are wet inboard of thetail booms. Actuators for theflaperons and the tail ruddervators are in the booms, as is the landinggear. The radio control and flightcontrol electronics are in a wing compartment.

The unmatched low drag of this very simple design canincrease the agility of slower recreational model airplanes -- simply byinstalling a turbojet with one third the thrust and using low speed airfoils.


Day Chahroudi, daychah@comcast.net
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Old 11-18-2016, 06:39 AM
  #16
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Quote:
Originally Posted by Day Chahroudi View Post
Version:1.0StartHTML:0000000176EndHTML:0000008728S tartFragment:0000003139EndFragment:0000008692Sourc eURL:file://localhost/Users/daychahroudi/Desktop/Model%20Jet.docVERY FAST AEROBATIC MODEL JET
[IMG]file://localhost/Users/daychahroudi/Library/Caches/TemporaryItems/msoclip1/01/clip_image002.jpg[/IMG]
Might wanna try that again!
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Old 11-18-2016, 07:37 AM
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Please email me at daychah@comcast.net & tell me how to post the drawings of this model. Also, I will email them to you.
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