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Avro Canada CF-105 Arrow
This is my LDD model of the Avro Canada CF-105 Arrow interceptor. It is built to minifig scale. Check out my flickr page for larger pictures: https://www.flickr.com/photos/118702264@N05/sets/72157644516459646/. You can find html building instructions for sale (at a modest price) on my Etsy site: www.etsy.com/ca/shop/KurtsMOCs.
About this creation

The Avro Canada CF-105 Arrow was an interceptor built in Canada to defend North America from Soviet long-range bombers attacking via the Arctic Circle.


The Arrow program began in 1953 and the first aircraft flew on March 25, 1958. The model shows the test aircraft's red and white paint scheme.


The RCAF required an all-weather interceptor that was missile-armed and supersonic.


Avro designers and engineers used a high-mounted delta wing and an internal weapons bay to reduce drag caused by wing-mounted weapons. The model shows the Arrow's weapon's bay empty.


The Arrow's weapon's bay would hold a weapon's pod that could be fitted or changed quickly. The model shows the Arrow awaiting the weapon's pod. The cockpit canopies are open and the dive brakes deployed.


The Arrow had a crew of two: a pilot and a navigator. Since the aircraft was an interceptor, the canopy could be small.


The aircraft had high performance expectations: flying close to Mach 3 at an altitude exceeding 60,000 ft.


The Arrow used the Pratt & Whitney J75-P-3 axial-flow turbojet engine, rated at 12,500 lbf (dry), for the Mark 1 Arrows. The Mark 2 Arrows were to use Avro's own Orenda PS.13 Iroquois, rated at 19,250 lbf (dry).


Five Mark 1 Arrows were produced for testing and one Mark 2 was produced with the Iroquois engines.


The Arrow was 77 feet long, 50 feet wide, and 21 feet high. The wing area was 1,225 sqft and the aircraft weighed 49,000 lbs empty.


At the time, the Arrow was one of the most advanced technical and aerodynamic aircraft in existence. Similar aircraft in development in the USA and the UK were the XF-103, the XF-108, and the SR.177.


The roll out day of the Arrow took place on October 4, 1957, the same day the Soviets launched Sputnik. With this Soviet achievement, the missile threat began to loom large in military circles, bringing the relevancy of the manned interceptor into question.


The Arrow would have been armed with the Hughes AIM-4 Falcon, the Canadair Velvet Glove, or the AIM-7 Sparrow II. The Arrow would have also been capable of carrying the AIR-2 Genie unguided nuclear rocket. The model shows a hypothetical weapon's bay that would have four AIM-4 Falcons and one AIR-2 Genie partially recessed into the weapon's pod. It was difficult to find accurate information regarding the final configuration for the weapon's pod so I modelled a few possible variations.


The model shows a hypothetical construction of an internal weapon's bay. Here, an AIM-7 Sparrow II is lowered on a missile trapeze.


This internal trapeze launch system was also used on other aircraft, such as the F-106 Delta Dart.


Here, the Arrow intercepts my Tu-95D Bear over the Canadian Arctic. I gave the Arrow a hypothetical grey paint scheme.


The Arrow program was cancelled on February 20, 1959 by the Canadian government due to high development costs and the growing interest in anti-aircraft missiles, such as the BOMARC. The five Mark 1 Arrows and the 1 Mark 2 Arrow were dismantled and scrapped.The nose section of the only Mark 2 produced and an Iroquois engine reside in the Canada Aviation and Space Museum in Ottawa. Recently, several opponents to the F-35 have resurrected the idea of bringing the Arrow back into service. A wishful, but unrealistic, idea but it goes to show how big an impact the CF-105 had on the Canadian imagination.




Comments

 I made it 
  October 30, 2014
Quoting Phillip Klein This is a very amazing model! Is there a place where I can down load or buy the building instructions?
Thanks for your comments Phillip. I appreciate your interest in my work. I have the Arrow building instructions posted on my Etsy site (see the description above for the address).
 I like it 
  October 29, 2014
This is a very amazing model! Is there a place where I can down load or buy the building instructions?
 I made it 
  August 13, 2014
Quoting Yann (XY EZ) Nice avro! I'm impressed by the size of it! 5/5
Thanks! The Arrow was a big airplane, even for an interceptor.
 I like it 
  August 13, 2014
Nice avro! I'm impressed by the size of it! 5/5
 I made it 
  March 26, 2014
Quoting Matt Bace Great job! I just love this aircraft. It's too bad that it never made it to operational status. For some reason, your CF-105 flew under my "radar" -- I wasn't aware of it until you mentioned it in your comments, but I'm glad I finally found it -- it's really well done..
Thanks Matt! I appreciate the comments. The Arrow is a rare bird in lego so I am glad we've both contributed in our own ways to its awareness. Keep up the good work!
 I like it 
  March 26, 2014
Great job! I just love this aircraft. It's too bad that it never made it to operational status. For some reason, your CF-105 flew under my "radar" -- I wasn't aware of it until you mentioned it in your comments, but I'm glad I finally found it -- it's really well done..
 I made it 
  January 31, 2014
Quoting Misa Nikolic When I was in high school (1990) my social studies instructor told us all about the Arrow he was a former pilot and got to fly it. Canada won't forget!
Wow! Great story. That must have been an incredible experience. You are correct: Canada will not forget the Arrow!
 I like it 
  January 30, 2014
When I was in high school (1990) my social studies instructor told us all about the Arrow he was a former pilot and got to fly it. Canada won't forget!
 I made it 
  January 17, 2014
Quoting clayton Marchetti You did a fabulous job on the Avro! This aircraft if mass produced would have been on everyone's top ten list. History channel had a cool episode about it . Awesome job!
I agree that the Arrow would have been a significant interceptor in the 1960s. Too bad about the politics: a lot of great aircraft never made it into production because of it.
 I like it 
  January 17, 2014
You did a fabulous job on the Avro! This aircraft if mass produced would have been on everyone's top ten list. History channel had a cool episode about it . Awesome job!
 I made it 
  December 20, 2013
Quoting Marty Fields Another masterpiece of engineering that did not manage to go into production. Great build!
Thanks Marty! The Arrow was pretty advanced for its day and quite a beast as well! Thanks for taking an interest in my projects.
 I like it 
  December 19, 2013
Another masterpiece of engineering that did not manage to go into production. Great build!
 I made it 
  December 18, 2013
Quoting Julius D Great job on this very interesting plane. I really like the cockpit solution. The only thing missing for me is a working landing gear but I understand that we all have to go with compromises sometimes. Excellent work.
Thanks for your comments Julius. The real cockpit is an odd design and difficult to capture smoothly in lego. I did try endless variations with retractable landing gear but it made the wing too thick. For the Arrow, the thin wing is what makes it so distinct and I couldn't lose that aspect. Its a compromise, I know, but one I am willing to live with.
 I like it 
  December 18, 2013
Great job on this very interesting plane. I really like the cockpit solution. The only thing missing for me is a working landing gear but I understand that we all have to go with compromises sometimes. Excellent work.
 I made it 
  December 16, 2013
Quoting john lamarck Good job.
Thanks for your comments John and thanks for taking an interest in my work.
 I like it 
  December 15, 2013
Good job.
 I like it 
  December 9, 2013
Not bad for Canada! Thanks for joining my new group. You have some great LDD models.
 I made it 
  December 8, 2013
Quoting arwenromel hanna excellent work as always
Thanks for your support!
 I made it 
  December 8, 2013
Quoting killswitch95 [DEMON] mmmmm big LDD models, spoiling me ever more are we, great work as always
Thanks for the comments. The CF-105 was surprisingly large so the lego version is likewise big.
 I made it 
  December 8, 2013
Quoting Mr. Busy Hands Neato!
Thanks!
 I made it 
  December 8, 2013
Quoting Matthew McCall Great job on this aircraft, it's a true shame it was cancelled. I've been working on a CF-105 myself and this has given a few solutions of how to solve some areas I've been stuck on. :)
Thanks for your comments Matthew. I agree: the Arrow could have been a special aircraft. Good luck on your Arrow. Feel free to borrow anything that may be of help.
 I like it 
  December 8, 2013
Great job on this aircraft, it's a true shame it was cancelled. I've been working on a CF-105 myself and this has given a few solutions of how to solve some areas I've been stuck on. :)
 I like it 
  December 8, 2013
Neato!
 I like it 
  December 8, 2013
mmmmm big LDD models, spoiling me ever more are we, great work as always
 I like it 
  December 8, 2013
excellent work as always
 I made it 
  December 8, 2013
Quoting World Of Recreation Also forgot to comment that you seem to have a powerful computer there for taking 2 huge MOCs into one file, mine usually crashes if I do that.
Its not as powerful as I would like! Mine does crash quite often, so don't feel too bad.
 I like it 
  December 8, 2013
Also forgot to comment that you seem to have a powerful computer there for taking 2 huge MOCs into one file, mine usually crashes if I do that.
 I made it 
  December 8, 2013
Quoting World Of Recreation Neat Design for the cockpit! 5/5!
Thanks for you comments!
 I made it 
  December 8, 2013
Quoting Gabor Pauler Excellent styling and description. With retractable landing gear it would be more technical.
Thanks for your comments. Fitting retractable landing gear on models this size is always a compromise. I tried several versions with retractable landing gear but they were all too bulky (the wing would have to be five plates thick). I opted to preserve the thin wing profile of the Arrow instead. It doesn't meet everyone's tastes but it works for me.
 I made it 
  December 8, 2013
Quoting Michael K. Sleek! Cool cockpit.
Thanks for your comments Michael. The cockpit on the Arrow is rather unconventional (bottom-pivoting clam shells) and was difficult to model. I'm glad you like the shape!
 I like it 
  December 8, 2013
Neat Design for the cockpit! 5/5!
 I like it 
  December 8, 2013
Excellent styling and description. With retractable landing gear it would be more technical.
 I like it 
  December 7, 2013
Sleek! Cool cockpit.
 
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