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Smallest Personal Jet Air Plane #4764651
05/22/18 08:06 AM
05/22/18 08:06 AM
Joined: Dec 2002
Posts: 40,831
'Stralia
Shannow Offline OP
Shannow  Offline OP
Joined: Dec 2002
Posts: 40,831
'Stralia

Re: Smallest Personal Jet Air Plane [Re: Shannow] #4764654
05/22/18 08:11 AM
05/22/18 08:11 AM
Joined: Oct 2010
Posts: 8,779
Virginia Beach
Astro14 Offline
Astro14  Offline
Joined: Oct 2010
Posts: 8,779
Virginia Beach
And I thought the BD-5 was small...


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Re: Smallest Personal Jet Air Plane [Re: Shannow] #4764698
05/22/18 08:54 AM
05/22/18 08:54 AM
Joined: Jun 2014
Posts: 1,769
Ca.
UncleDave Offline
UncleDave  Offline
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Posts: 1,769
Ca.
was expecting to see a bede micro...yup thats tiny....

The music is hilarious.

UD


Uncle Dave
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Re: Smallest Personal Jet Air Plane [Re: Shannow] #4764712
05/22/18 09:08 AM
05/22/18 09:08 AM
Joined: Mar 2008
Posts: 5,942
Michigan
ZZman Offline
ZZman  Offline
Joined: Mar 2008
Posts: 5,942
Michigan
I could do without the stupid music


2003 Mercury Grand Marquis. Rotella T6 Multi-Vehicle oil
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Re: Smallest Personal Jet Air Plane [Re: Shannow] #4764733
05/22/18 09:23 AM
05/22/18 09:23 AM
Joined: Oct 2012
Posts: 4,593
Taiwan
Ducked Offline
Ducked  Offline
Joined: Oct 2012
Posts: 4,593
Taiwan
Wish they hadn't cut the tiny but apparently fairly powerful engines starting, was interested to see and hear that.

Re Smallest Pesonal Jet, its close, but....


Re: Smallest Personal Jet Air Plane [Re: Shannow] #4764825
05/22/18 11:06 AM
05/22/18 11:06 AM
Joined: Feb 2003
Posts: 7,418
Jupiter, Florida
Cujet Offline
Cujet  Offline
Joined: Feb 2003
Posts: 7,418
Jupiter, Florida
Ohhhh, the engine is glowing on takeoff! Wonderfully over temp'd.

I've seen the little Sonex jet fly at Sun N Fun. That was pretty cool too.

Go to the 5 minute mark to see it fly.


Last edited by Cujet; 05/22/18 11:08 AM.

People who count on their fingers should maintain a discreet silence.
Re: Smallest Personal Jet Air Plane [Re: ZZman] #4764858
05/22/18 11:40 AM
05/22/18 11:40 AM
Joined: Oct 2010
Posts: 8,779
Virginia Beach
Astro14 Offline
Astro14  Offline
Joined: Oct 2010
Posts: 8,779
Virginia Beach
Originally Posted By: ZZman
I could do without the stupid music


It was designed by a French guy, so, they chose some "French" music, I think...but yes, best watched with the volume down...


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Re: Smallest Personal Jet Air Plane [Re: Shannow] #4765147
05/22/18 03:54 PM
05/22/18 03:54 PM
Joined: Dec 2002
Posts: 40,831
'Stralia
Shannow Offline OP
Shannow  Offline OP
Joined: Dec 2002
Posts: 40,831
'Stralia
I didn't mind the music...I loved the movie Inception.

Re: Smallest Personal Jet Air Plane [Re: Shannow] #4765616
05/23/18 06:19 AM
05/23/18 06:19 AM
Joined: Oct 2012
Posts: 4,593
Taiwan
Ducked Offline
Ducked  Offline
Joined: Oct 2012
Posts: 4,593
Taiwan
What are the engines from/for?

Seem too small for air-breathing missiles that I've heard of, though I'm likely very out of date.

Commercial / military drone?

Wonder how it does with an engine out. They're fairly close together so it might be more forgiving than most twins.

Re: Smallest Personal Jet Air Plane [Re: Shannow] #4765624
05/23/18 06:39 AM
05/23/18 06:39 AM
Joined: Dec 2002
Posts: 40,831
'Stralia
Shannow Offline OP
Shannow  Offline OP
Joined: Dec 2002
Posts: 40,831
'Stralia
The flying squirrel suits started using the jets that were made for scale aircraft.

(early developers used turbo gizzards - then they started making them proper).

One of my lecturers in the late 80s (turbomachinery and dimensional analysis - two subjects) suggested that microturbines wouldn't work, as the clearances didn't scale with the other dimensions.

The first turbo based GTs were pretty sketchy (Nye was one of the early ones), but clearly, they are doable.

Re: Smallest Personal Jet Air Plane [Re: Shannow] #4765633
05/23/18 06:53 AM
05/23/18 06:53 AM
Joined: Feb 2003
Posts: 7,418
Jupiter, Florida
Cujet Offline
Cujet  Offline
Joined: Feb 2003
Posts: 7,418
Jupiter, Florida
Having built a number of small gas turbine engines, you are not wrong. Small ones have real issues with acceptable performance. Clearances are a big part of the problem. Williams tried a 3 spool turbofan for the Eclipse jet. Even using one piece bladed disks and ultra tight clearances, Williams was never able to achieve predicted power or TSFC (economy) . Pratt came to the rescue with conventionally sized parts in a compact package.

Aviation is full of bogus claims and a harsh reality. That reality being Range, Speed and Altitude are almost mutually exclusive goals. The smaller, the more elusive those goals become.


People who count on their fingers should maintain a discreet silence.
Re: Smallest Personal Jet Air Plane [Re: Ducked] #4770000
05/28/18 06:43 AM
05/28/18 06:43 AM
Joined: Mar 2015
Posts: 5,142
Glendale, Arizona
billt460 Offline
billt460  Offline
Joined: Mar 2015
Posts: 5,142
Glendale, Arizona
Originally Posted By: Ducked
What are the engines from/for?


They are for powering R/C model turbine aircraft. Similar to these. They are made by several manufacturers.

http://www.chiefaircraft.com/radio-control/turbine-jet-aircraft/turbines.html

Re: Smallest Personal Jet Air Plane [Re: billt460] #4770025
05/28/18 07:38 AM
05/28/18 07:38 AM
Joined: Oct 2012
Posts: 4,593
Taiwan
Ducked Offline
Ducked  Offline
Joined: Oct 2012
Posts: 4,593
Taiwan
Originally Posted By: billt460
Originally Posted By: Ducked
What are the engines from/for?


They are for powering R/C model turbine aircraft. Similar to these. They are made by several manufacturers.

http://www.chiefaircraft.com/radio-control/turbine-jet-aircraft/turbines.html



Two of the biggest ones would give about a 100 pounds of thrust. I dunno how much you need but that doesn't seem a lot.

Re: Smallest Personal Jet Air Plane [Re: Shannow] #4770114
05/28/18 09:10 AM
05/28/18 09:10 AM
Joined: Feb 2011
Posts: 1,364
Up State NY
SEMI_287 Online content
SEMI_287  Online Content
Joined: Feb 2011
Posts: 1,364
Up State NY
Here's the video without music and landing.



And the engines used..

TJ-20 Turbojet

I wonder if this counts as turbine PIC time. ???


2005 BMW 325xi- Delo 400 XSP 5W40, K&N
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Re: Smallest Personal Jet Air Plane [Re: Ducked] #4770915
05/29/18 06:40 AM
05/29/18 06:40 AM
Joined: Mar 2015
Posts: 5,142
Glendale, Arizona
billt460 Offline
billt460  Offline
Joined: Mar 2015
Posts: 5,142
Glendale, Arizona
Originally Posted By: Ducked
Two of the biggest ones would give about a 100 pounds of thrust. I dunno how much you need but that doesn't seem a lot.


Jet Cat has the P-550 that produces 123 pounds of thrust.

http://modelaircraftcompany.com/newshop/en/home/90-jetcat-p550-pro-turbine.html

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