Logo
Builders' Plan Gallery  |  Hip Pocket Web Site  |  Contact Forum Admin  |  Contact Global Moderator
June 28, 2017, 11:58:32 AM *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with email, password and session length
 
Home Help Search Login Register
Pages: [1]   Go Down
Print
Author Topic: F1N for cat III  (Read 601 times)
0 Members and 1 Guest are viewing this topic.
boca55
Silver Member
****

Kudos: 6
Offline Offline

Serbia and Montenegro Serbia and Montenegro

Posts: 117


Topic starter


Ignore
« on: April 17, 2017, 07:09:51 PM »

My new model F1N cat. III call "Easter". Wingspan 720mm, weight 20,1 gram.
Wing balsa 5mm, Depron 3mm. A model designed to competition at the Belgrade fair, from 7-9 July.
http://i43.photobucket.com/albums/e374/watt1992/Easter%201_zpsvrx1hipe.jpg
http://i43.photobucket.com/albums/e374/watt1992/Easter%202_zpskwtvgov7.jpg
F1N for cat III
F1N for cat III
Logged
OZPAF
Titanium Member
*******

Kudos: 37
Offline Offline

Australia Australia

Posts: 3,404



Ignore
« Reply #1 on: April 17, 2017, 09:43:25 PM »

Very nicely made glider. The wing clips onto the low pylon?

John
Logged
boca55
Silver Member
****

Kudos: 6
Offline Offline

Serbia and Montenegro Serbia and Montenegro

Posts: 117


Topic starter


Ignore
« Reply #2 on: April 18, 2017, 02:49:03 AM »

Yes, wings are mounted on the bottom pylon and ensure adhesive tape. This model has a slightly slimmer profile of 4.5%, but it has the ability to change the angle of attack, so I hope to be able to achieve maximum height.
Logged
OZPAF
Titanium Member
*******

Kudos: 37
Offline Offline

Australia Australia

Posts: 3,404



Ignore
« Reply #3 on: April 18, 2017, 04:45:42 AM »

Thanks - good luck with it.
John
Logged
boca55
Silver Member
****

Kudos: 6
Offline Offline

Serbia and Montenegro Serbia and Montenegro

Posts: 117


Topic starter


Ignore
« Reply #4 on: April 18, 2017, 09:12:31 AM »


Here is a plan, just baked.
http://i43.photobucket.com/albums/e374/watt1992/F1N%20Eister_zpsne4xq4ki.jpg
F1N for cat III
Logged
Olbill
Titanium Member
*******

Kudos: 50
Offline Offline

United States United States

Posts: 2,190



Ignore
« Reply #5 on: April 18, 2017, 11:36:39 AM »

Bosko
I just built a new glider based on Lazar's Dark NG dimensions. Dark NG is for Cat 1 and the flat wingspan is 576mm. Easter's wingspan is 720mm. What is your thinking on what size glider to build?

Specifically I'm wondering why most of the Cat 1 F1N's that I see are smaller than Easter?
Logged
boca55
Silver Member
****

Kudos: 6
Offline Offline

Serbia and Montenegro Serbia and Montenegro

Posts: 117


Topic starter


Ignore
« Reply #6 on: April 19, 2017, 02:49:22 AM »

Olbill,
My experience is that if you want to achieve a height of 8m to model Cat.1 you must have a model of 8 grams. I'm flying model range 640 mm and weighing 11 grams. The model had a slightly thicker profile 4mm. With this model I won in 3 national championships.  It's great plan but it would be better that is easier for at least 2 grams. For hull I used carbon tube 2 / 1mm, but this is wrong. A better solution is a carbon tip for telescopic rod so facilitate the model for 1 gram.
I think that the model range 600-640 mm and weighting 7-8 grams, right measure for F1N Category 1.
Logged
Olbill
Titanium Member
*******

Kudos: 50
Offline Offline

United States United States

Posts: 2,190



Ignore
« Reply #7 on: April 19, 2017, 01:17:18 PM »

My most successful HLG had a flat span of 711mm and a flat area of 645 cmsq. Weight was 8+ grams (I don't remember exact weight).

It sounds like we are in pretty close agreement there, but it seems that many Cat 1 F1N's are smaller like Slow Poker size. I guess if you can match the Slow Poker flight times you are in pretty good shape. I don't know anyone who has done that.
Logged
Pages: [1]   Go Up
Print
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Valid XHTML 1.0! Valid CSS!