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Date: Jul 4, 2011
Enstrom
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Enstrom F-27 - ?

Enstrom F-28 - light helicopter

  • F-28A - first production model
  • 280 "Shark" - luxury version of the F-28A
  • F-28C / 280C - improved model with 153kW Avco-Lycoming HIO-360-E1AD engine 
  • F-28C-2 - same as above model with one-piece windscreen and pedestal central instrument console
  • F-28F "Falcon" / 280F - improved model with turbocharged 168kW Avco-Lycoming HIO-360-F1AD engine
  • F-28F-P "Sentinel" - police version of Model 280F
  • 280FX (also called "Shark", or is this a mistake?) - updated Model 280F
  • 280L "Hawk" - project for a four-seat version of the 280C (prototype was flown, but production ceased following change in company ownership)
  • Spitfire Mk 1 - basic Enstrom F-28A design by the Spitfire Helicopter Company of Lynnfield, Massachusetts

Enstrom 480 - four-seat version of Model 280L "Hawk" design

  • 480 - Initial version with five-seat(?( (two plus three) configuration with staggered seating
  • 480B - further improved model
  • "Guardian" - police patrol/security version
  • TH-28 - light patrol training version with crashworthy construction

 

Enstrom 800 - five-seat helicopter project with two Allison engines

VIKI-helicopter - coaxial-rotor version



-- Edited by hannetonIII on Monday 4th of July 2011 10:42:33 PM

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There was no F-27. But great list anyway. 



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hannetonIII wrote:

Enstrom 480 - four-seat version of Model 280L "Hawk" design

  • 480 - Initial version with five-seat(?( (two plus three) configuration with staggered seating

 

Confusing. But I can clear it up... it was the prototype constructed from the 280FX airframe which had a strict seating of 4. Further design studies allowed the installation of a fifth seat into the production designs, I believe in a 2-by-3 layout.



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Matt L. Webber


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Date: Jul 4, 2011
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Pepper wrote:

There was no F-27.


 

Oh no???

http://www.enstromhelicopter.com/enstrom_new/enstrom_history_1960.html



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Alan Dallas


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piston_dwgs.jpg

http://www.n57.com/Turbine_dwgs.jpg



-- Edited by Air_Gopher on Monday 4th of July 2011 09:57:19 PM

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hannetonIII wrote:
  • 280L "Hawk" - project for a four-seat version of the 280C (prototype was flown, but production ceased following change in company ownership)

 

Wanted



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Gunship wrote:
Pepper wrote:

There was no F-27.


 Oh no???

http://www.enstromhelicopter.com/enstrom_new/enstrom_history_1960.html


 

Silly me.

By the way, here is a diagram showing some of the 480 series seating arrangements.



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Date: Jul 4, 2011
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hannetonIII wrote:
  • F-28A - first production model

 



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Date: Jul 4, 2011
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I have some to add to your list:

Enstrom Model-800 --- five-seat helicopter project with two Allison engines,

VIKI --- coaxial-rotor version, not sure if it was just a prototype or kit-mod, or an officially modified variant.



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Commander31 wrote:

VIKI --- coaxial-rotor version, not sure if it was just a prototype or kit-mod, or an officially modified variant.


 

No kidding? By which firm?



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Matt L. Webber


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The VIKI coaxial helicopter

attachment.php?attachmentid=46675&d=1211033278

http://www.rotaryforum.com/forum/showthread.php?t=10464&page=7



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Date: Jul 4, 2011
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Whoa.... I didn't expect this thread to fill up so fast! Thanks for all the cool stuff. I've added those other ones to the list.



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Date: Jul 5, 2011
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Commander31 wrote:

I have some to add to your list:

Enstrom Model-800 --- five-seat helicopter project with two Allison engines,

VIKI --- coaxial-rotor version, not sure if it was just a prototype or kit-mod, or an officially modified variant.


 

You must give the source;

http://www.secretprojects.co.uk/forum/index.php/topic,4354.msg34485.html#msg34485

http://www.flightglobal.com/pdfarchive/view/1975/1975%20-%200177.html?search=vought%20projects



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hesham


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Date: Jul 6, 2011
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Thanks Gunship, for the photo of the F-27. Never knew about this one, but it now seems that the first prototype had the 2-bladed rotor and a steel tube tail section and was known as the F-27, while the other 2 prototypes got the later standard 3-blade rotor and the fatter closed tail section (F-28).
Learning every day.
Regards, Walter

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failcopter67 wrote:
Commander31 wrote:

VIKI --- coaxial-rotor version, not sure if it was just a prototype or kit-mod, or an officially modified variant.


 

No kidding? By which firm?


 

None, it was a private modification who'se owner died back in 2000. Engine is an Allison, it also has Hughes Model 500 avionics and hydraulic controlled cyclic column. The rotor system was a Gyrodyne, believe it or not.

It was really working, but I don't think it was ever flown.



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Date: Jul 6, 2011
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Hi HannetonIII, here is the Spitfire Mk. 1.



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No, what you have there is the Mk.2, second prototype.



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Date: Jul 22, 2011
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Rudy Enstrom did some earlier homebuilt work too. Here's one of his designs from 1957:

https://sites.google.com/site/stingrayslistofrotorcraft/enstrom-homebuilt-helicopter



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Date: Jul 29, 2011
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Enstrom helicopters date that far back? O_o

And the VIKI model looks awsome. Shame it wasn't flown. cry



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The recent TH-180 isn't here (the one that crashed)



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hannetonIII wrote:
  • 280FX (also called "Shark", or is this a mistake?) - updated Model 280F

 Being called that on Enstrom's official website should answer that question.

The 480B was developed to meet New Training Helicopter (NTH) requirements for the Army to replace the UH-1 trainers at Rucker. Eurocopter AS.350 and Schweizer 269D competed too but the Bell 206B-3 was selected in 1993 (became the TH-67. 480B-G is equipped with the Garmin G1000H all-glass avionics suite.



-- Edited by retroistic on Friday 19th of February 2016 04:48:23 PM

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Hi,

as I said before;

F-27 was a three seat light civil helicopter;

http://www.secretprojects.co.uk/forum/index.php/topic,4074.msg7083.html#msg7083



-- Edited by hesham on Sunday 21st of February 2016 07:51:43 AM



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hesham


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Date: Feb 27, 2016
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Should I take the liberty of editing Hanneton's list in light of new information? He has a habit of disappearing for a long time thus prolonging these obsolete postings without updates. I'm a bit torn. :P



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He consented to it before so go ahead.



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Date: Jun 3, 2016
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N1135 was a trainer , designed by an ex-employee at Enstrom , it has a standard swash plate and fly weights and paddles to reduce control forces, no doors as the body slides forward to exit, it was bought by a guy who contacted me for advise on it's rebuild (it had been sitting out too long) I told him to keep it stock. but he thinks he knows better...to bad, It could of been a goodie. It was a one off design.

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