• Hi Guest! Forum rules have been updated. All users please read here.

Bell amazing helicopter project

hesham

ACCESS: USAP
Senior Member
Joined
May 26, 2006
Messages
27,077
Reaction score
3,755
Hi,

we can call it all-wing helicopter,and its power untis was mounted
at the wing-tips.
http://www.flightglobal.com/pdfarchive/view/1954/1954%20-%201943.html
 

Attachments

  • Bell.JPG
    Bell.JPG
    30.7 KB · Views: 615

LowObservable

ACCESS: Top Secret
Senior Member
Joined
Oct 18, 2006
Messages
2,209
Reaction score
143
For God's sake, don't let the JFTL fanatics in the Army see this.
 

flateric

ACCESS: Above Top Secret
Staff member
Top Contributor
Senior Member
Joined
Apr 2, 2006
Messages
9,085
Reaction score
982
"The prototype is now being built." huh-huh
 

yasotay

ACCESS: Top Secret
Senior Member
Joined
Oct 19, 2006
Messages
2,432
Reaction score
612
overscan said:
Joint Future Theater Lift I think ;D
Nope. USAF does not do anything with propellors in the mainstream. Also I doubt it is; a. is stealthy enough b. does not have four turbopfan. One cannot get a job that pays well in the airline industry without four engine turbine time.
 

Tailspin Turtle

ACCESS: Top Secret
Senior Member
Joined
Dec 6, 2007
Messages
697
Reaction score
84
Website
www.tommythomason.com
flateric said:
"The prototype is now being built." huh-huh
My library is in Connecticut and I am in Texas but I vaguely remember seeing a picture of a Bell powered model of this basic configuration. A reporter might have misconstrued the situation, either a statement about a powered model or the wishful enthusiasm of the Bell engineer he was talking to. The concept had initial appeal because tandem rotors are more efficient in pure lift (as opposed to lift over drag) than a single rotor helicopter, prone to fly sideways from the directional stability standpoint, and often flown sideways when maximum translational lift is required as in the departure from a confined area. My guess is that the cruise L/D of this configuration, even with the lifting fuselage, proved to be less than hoped for since none (?) have ever reached the prototype stage.
 

Jemiba

ACCESS: Above Top Secret
Staff member
Top Contributor
Senior Member
Joined
Mar 11, 2006
Messages
8,258
Reaction score
1,021
An artist impression of the Bell Copter:
(from Aviation Week .6.54)
 

Attachments

  • Bell-Copter-1.jpg
    Bell-Copter-1.jpg
    123.8 KB · Views: 552

ermeio

ACCESS: Confidential
Joined
Aug 5, 2009
Messages
93
Reaction score
35
I am pretty sure that on this forum there was a rather deep piece of information about the bell D-218 cargo helicopter, but I am no longer able to locate it
I still have two pictures and the do not correspond to those in this thread and in the bell thread
can you address me to the precise thread
 

hesham

ACCESS: USAP
Senior Member
Joined
May 26, 2006
Messages
27,077
Reaction score
3,755
Hi Ermeio,

unfortunately there was no more Info about it;

https://books.google.com.eg/books?id=ziADAAAAMBAJ&pg=PA86&dq=popular+science+flying-wing&hl=en&sa=X&ei=PTIDVNrPJIfsO775gdAE#v=onepage&q&f=false

http://archive.aviationweek.com/search?QueryTerm=Bell+40-passenger+copter
 

Attachments

  • 1.png
    1.png
    508.9 KB · Views: 259
  • 2.png
    2.png
    181.8 KB · Views: 238

Retrofit

ACCESS: Top Secret
Joined
Feb 21, 2007
Messages
588
Reaction score
93
ermeio said:
I am pretty sure that on this forum there was a rather deep piece of information about the bell D-218 cargo helicopter, but I am no longer able to locate it
I still have two pictures and the do not correspond to those in this thread and in the bell thread
can you address me to the precise thread
 

Attachments

  • Bell D-218.JPG
    Bell D-218.JPG
    24 KB · Views: 198
  • bell paper planes 4.jpg
    bell paper planes 4.jpg
    122.2 KB · Views: 55

Similar threads

Top