Author Topic: Business and regional jets  (Read 1617 times)

Offline ysi_maniac

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Business and regional jets
« on: October 16, 2013, 12:18:52 AM »
Reworking HS 125




Offline The Big Gimper

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Re: Business and regional jets
« Reply #1 on: October 16, 2013, 12:23:57 AM »
I like the four engine design. Scale-o-rama with a 1/144 airliner.
Work in progress ::

I am giving up listing them. They all end up on the shelf of procrastination anyways.

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Online Jeffry Fontaine

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Re: Business and regional jets
« Reply #2 on: October 16, 2013, 01:16:10 AM »
The jet engine pods from the Italeri/Testors AC-119 kit would work very well for such a modification project in 1:72nd scale  :)
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Offline GTX_Admin

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Re: Business and regional jets
« Reply #3 on: March 15, 2018, 07:28:05 PM »
What about something such as a Learjet with the twin small engines replace by something such as a P&W F100 in the tail fed by a single over fuselage intake (with either ramp or shock cone).  One supersonic business jet!
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Offline elmayerle

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Re: Business and regional jets
« Reply #4 on: March 16, 2018, 02:39:44 AM »
Need a thinner and re-profiled wing, too.  Current Learjet wing gets severe "Mach tuck" at Mach=.85 which creates a severe nose-down pitching moment that can very easily lead to a great smoking hole in the ground.

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Re: Business and regional jets
« Reply #5 on: March 16, 2018, 04:19:45 AM »
New wing is a definite.
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Offline ysi_maniac

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Re: Business and regional jets
« Reply #6 on: March 17, 2018, 04:38:59 AM »
Like this?


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Re: Business and regional jets
« Reply #7 on: March 17, 2018, 08:40:18 PM »
Yep that would work.  A variable intake might be useful to get the best performance though
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Re: Business and regional jets
« Reply #8 on: April 17, 2018, 02:47:31 AM »
Sweet!

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Offline jcf

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Re: Business and regional jets
« Reply #9 on: April 18, 2018, 04:54:02 AM »
Brit concepts.






Blackburn




Originally a concept for a VTOL military liaison aircraft, considered for exec role, centre fan lift.





Two SR.177 based concepts.


« Last Edit: April 18, 2018, 09:05:57 AM by jcf »
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Offline ysi_maniac

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Re: Business and regional jets
« Reply #10 on: April 18, 2018, 09:59:52 AM »
Thanks for posting.

Offline elmayerle

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Re: Business and regional jets
« Reply #11 on: April 18, 2018, 10:38:04 AM »
B.114 looks like an expansion on the Miles Student jet trainer.  Some interesting concepts there and the ones with lift fans remind me of some studies Ryan did of mating lift fans with an early-model Learjet.

Offline M.A.D

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Re: Business and regional jets
« Reply #12 on: April 19, 2018, 10:36:13 AM »
What about Contingency Fighter's aka Emergency Fighter adoption of business jets for military roles eg: Interceptor / Ground Attack? Or has this already been done in other forums? (if so, I apologise, and please disregard)


M. A. D

Offline elmayerle

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Re: Business and regional jets
« Reply #13 on: April 19, 2018, 11:37:00 AM »
What about Contingency Fighter's aka Emergency Fighter adoption of business jets for military roles eg: Interceptor / Ground Attack? Or has this already been done in other forums? (if so, I apologise, and please disregard)
There were studies of interceptor versions of the Learjet 35/36 with a radar on the top of the vertical tail and three missiles, 2x AMFAAM and 1x IRAAM, under each wing.  You could also adapt the Learjet wing to carry ground attack munitions and add suitable sensor designator elements either on the fuselage or at the front end of the tip tanks.

Offline ScranJ51

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Re: Business and regional jets
« Reply #14 on: April 19, 2018, 12:01:07 PM »
The Royal Navy used one or two (actually this is number 4) for Fleet Support in Scran Land:

HS125-3 by David Freeman, on Flickr

HS125-2 by David Freeman, on Flickr

HS125-1 by David Freeman, on Flickr
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Offline Acree

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Re: Business and regional jets
« Reply #15 on: April 19, 2018, 12:09:37 PM »
The US Drug Enforcement Agency (DEA) use Cessna Citation 550s equipped with AN/APG 66 radar and other sensors on intercept duties. See here: https://www.cbp.gov/sites/default/files/documents/FS_2015_C-550%20Citation.pdf

Offline jcf

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Re: Business and regional jets
« Reply #16 on: April 19, 2018, 12:20:33 PM »
What about Contingency Fighter's aka Emergency Fighter adoption of business jets for military roles eg: Interceptor / Ground Attack? Or has this already been done in other forums? (if so, I apologise, and please disregard)


M. A. D

Dime-a-dozen in Whif-verse, and not uncommon in the “real world”, and all far
more boring than the reverse: bizjets/exec aircraft based on military aircraft.
"Evil our grandsires were, our fathers worse;
And we, till now unmatched in ill,
Must leave successors more corrupted still."
Horace, 65BC - 8BC. Marsh translation.

Offline Volkodav

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Re: Business and regional jets
« Reply #17 on: April 20, 2018, 11:34:57 AM »
What about Contingency Fighter's aka Emergency Fighter adoption of business jets for military roles eg: Interceptor / Ground Attack? Or has this already been done in other forums? (if so, I apologise, and please disregard)


M. A. D

Dime-a-dozen in Whif-verse, and not uncommon in the “real world”, and all far
more boring than the reverse: bizjets/exec aircraft based on military aircraft.

Well the original Lear was based on a fighter / ground attack aircraft and the Mystere business jets were evolved from the like Nb armed fighters.

Offline elmayerle

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Re: Business and regional jets
« Reply #18 on: April 20, 2018, 12:44:35 PM »
Yep, the Learjet, especially the Model 23, uses the wings, tail surfaces, and tip tanks of the FFA P-16.  The wings on the Models 23/24/25, 28/29, 35/36, 55, 60 all share this ancestry.  Only the comparatively recent Model 45 has a new wing.

Offline GTX_Admin

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Re: Business and regional jets
« Reply #19 on: April 21, 2018, 01:52:09 AM »
It would be interesting to see some other fighters developed into business jets:

  • Mirage III/2000?
  • Mirage F.1
  • F-4 Phantom II
  • F-104
  • F-14
  • F-16
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Offline GTX_Admin

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Re: Business and regional jets
« Reply #20 on: April 21, 2018, 01:53:20 AM »
Speaking of which, here is a theoretical F-111 Executive jet I did ages ago:

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Re: Business and regional jets
« Reply #21 on: April 21, 2018, 01:55:20 AM »
And there was the real world MiG-25 proposal:

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Offline elmayerle

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Re: Business and regional jets
« Reply #22 on: April 21, 2018, 02:31:07 AM »
Then there's Cessna's Model 407/407A derivatives of the T-37 as well as the "executive transport" version of the F-106 that Convair proposed (really want to model that one in 1/48).  For that matter, there's the TU-116, a more direct conversion of a TU-95 airframe for a special personnel transport than the TU-114 airliner.

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Re: Business and regional jets
« Reply #23 on: April 21, 2018, 02:38:37 AM »
All hail the God of Frustration!!!

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Re: Business and regional jets
« Reply #24 on: April 21, 2018, 04:33:49 AM »
Another conversion:

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Re: Business and regional jets
« Reply #25 on: April 21, 2018, 08:44:45 AM »
I think that Vampire BizJet would look right at home with Gerry Anderson's Thunderbirds. 
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Offline jcf

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Re: Business and regional jets
« Reply #26 on: April 25, 2018, 08:40:14 AM »
More SARO, two of the different configurations studied during the P195 & P202 design
process.


Four engines buried in the rear fuselage, tiltable for short takeoff.

"Evil our grandsires were, our fathers worse;
And we, till now unmatched in ill,
Must leave successors more corrupted still."
Horace, 65BC - 8BC. Marsh translation.

Offline ysi_maniac

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Re: Business and regional jets
« Reply #27 on: May 05, 2018, 02:42:58 AM »
Regional STOL

Found in DeviantArt. I love it

Offline GTX_Admin

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Re: Business and regional jets
« Reply #28 on: May 05, 2018, 03:32:38 AM »
 :smiley:
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Offline ysi_maniac

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Re: Business and regional jets
« Reply #29 on: May 05, 2018, 09:25:49 AM »
Speaking of which, here is a theoretical F-111 Executive jet I did ages ago:




Greg, may I ask for your licence to build this one day? ??? 8)

Offline GTX_Admin

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Re: Business and regional jets
« Reply #30 on: May 06, 2018, 01:24:05 AM »
Go for it!
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Offline ysi_maniac

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Re: Business and regional jets
« Reply #31 on: May 07, 2018, 08:09:30 PM »
 :smiley: OK!