HobbyKing.com New Products Flash Sale
Reply
Thread Tools
This thread is privately moderated by argo-2, who may elect to delete unwanted replies.
Old Nov 01, 2012, 06:34 AM
Maiden>Confident>Cocky>Crash!
argo-2's Avatar
New Zealand
Joined Feb 2010
558 Posts
Build Log
Windrider Bat (Superfreak variation) Build.

A pictorial of my recent Bat build follows:
Specs -

Bat variation: 'Superfreak'. Wing roots cut to make a straight TE (actually 15mm sweep back).
Span: 1370mm (54").
AUW: 790gms (28 Ounces).
Reinforcing: 2 x 2mm fibreglass rods aft, 2 x 3mm FG rods forward, 8x0.8mm CF strip embedded into TE, Balsa TE/Hinge strips & FG tape/3M90 LE reinforcement.
Elevon material: Balsa.
Covering: Lamfilm then signwriter's vinyl (vinyl also acts as elevon hinges).
Batterys: 4 x AAA NiMH LSD 900mAH.
Added nose lead: 70gms + 70gms each side of battery pack.
Edit: Added another 62gms of lead to the beak to bring CG forward to 154mm.
Edit2: Now tuned after maiden to CG of 156mm.
Edit3: Still going back, now 159mm.
argo-2 is offline Find More Posts by argo-2
Last edited by argo-2; Feb 10, 2013 at 08:47 PM.
Reply With Quote
Sign up now
to remove ads between posts
Old Nov 02, 2012, 10:42 AM
Ming's Avatar
Hong Kong
Joined Jun 2002
4,711 Posts
Video please

Ming Lou
Ming is offline Find More Posts by Ming
Site Sponsor
Reply With Quote
Old Nov 02, 2012, 03:50 PM
Maiden>Confident>Cocky>Crash!
argo-2's Avatar
New Zealand
Joined Feb 2010
558 Posts
Sure Ming, just as soon as I get her maidened.
Geez you picked up on this post fast
I only posted a couple of days ago!

Video added:

Windrider Bat (Superfreak variation) flying off Mt Mangere, Auckland. (2 min 47 sec)
argo-2 is offline Find More Posts by argo-2
Last edited by argo-2; Dec 02, 2012 at 06:05 AM.
Reply With Quote
Old Nov 14, 2012, 04:25 PM
Registered User
iwchris's Avatar
Isle of Wight (UK)
Joined Oct 2010
230 Posts
Just got one of these! Never used Lam Film before, do you just stretch it over after spraying the surface or use a finishing iron on low heat?
iwchris is offline Find More Posts by iwchris
Reply With Quote
Old Nov 18, 2012, 01:02 AM
Maiden>Confident>Cocky>Crash!
argo-2's Avatar
New Zealand
Joined Feb 2010
558 Posts
Quote:
Originally Posted by iwchris View Post
Just got one of these! Never used Lam Film before, do you just stretch it over after spraying the surface or use a finishing iron on low heat?
Hi iwc
I spray the EPP first with 3M70 or F2 spray and then let it set overnight. I then lay the lam film wing tip to wing tip. Tack the film down with the iron on "Nylon". Then starting from centre I iron it down in long strokes from wing centre to tips. Film shrinking is done on "Silk" setting. Be very careful going too much hotter than silk as all of a sudden you find the EPP starting to soften. There are great YouTube videos showing an Assassin being lam filmed - search on YouTube for 'Assassin' and 'lamfilm'.

Good luck!
argo-2 is offline Find More Posts by argo-2
Reply With Quote
Old Nov 18, 2012, 01:24 AM
Registered User
iwchris's Avatar
Isle of Wight (UK)
Joined Oct 2010
230 Posts
Quote:
Originally Posted by argo-2 View Post
Hi iwc
I spray the EPP first with 3M70 or F2 spray and then let it set overnight. I then lay the lam film wing tip to wing tip. Tack the film down with the iron on "Nylon". Then starting from centre I iron it down in long strokes from wing centre to tips. Film shrinking is done on "Silk" setting. Be very careful going too much hotter than silk as all of a sudden you find the EPP starting to soften. There are great YouTube videos showing an Assassin being lam filmed - search on YouTube for 'Assassin' and 'lamfilm'.

Good luck!
Thanks very much Argo-2 for your help, I will have look on YouTube for that film, I'm going to enjoy doing this wing.
iwchris is offline Find More Posts by iwchris
Reply With Quote
Old Nov 18, 2012, 02:37 AM
Maiden>Confident>Cocky>Crash!
argo-2's Avatar
New Zealand
Joined Feb 2010
558 Posts
No problem Chris. Here is one link: http://m.youtube.com/#/watch?v=Ao3Ef...%3DAo3Efb8-7Vc

There are other vids out there. Crashtesthobby is a great resource for building vids and super tough EPP wings. Quite a number of the guys here have their planes.
argo-2 is offline Find More Posts by argo-2
Reply With Quote
Old Jan 03, 2013, 12:45 AM
Registered User
Australia, QLD, Brighton
Joined Sep 2006
150 Posts
Hey Argo, a quick question. Did you shape the Balsa Elevators? or were they just bought straight off the shelf and cut to fit?

regards
Matthew
lemuel is offline Find More Posts by lemuel
Reply With Quote
Old Jan 03, 2013, 12:46 AM
Registered User
Australia, QLD, Brighton
Joined Sep 2006
150 Posts
are the elevons modified? or standard Elevator stock?

regards
Matthew
lemuel is offline Find More Posts by lemuel
Reply With Quote
Old Jan 27, 2013, 06:32 PM
Maiden>Confident>Cocky>Crash!
argo-2's Avatar
New Zealand
Joined Feb 2010
558 Posts
Opps sorry lemuel, missed your questions.

To answer:

Stock elevons were cut off and replaced with Balsa ones. Balsa ones were off the shelf at local modelling shop. They had rounded edges at the hinge, I cut these off to make a bevel (flat) hinge-line.

Cheers.
argo-2 is offline Find More Posts by argo-2
Reply With Quote
Reply

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Windrider bat given by a friend lemuel Slope 8 Sep 20, 2012 03:30 PM
Help! superfreak bat advice berkshire sloper Slope 9 Dec 31, 2008 09:47 PM
Discussion Windrider Bat vs Bee vs Bat vs Bee... Drusky Slope 14 Aug 31, 2007 02:21 PM
Help! Superfreak Bat Rebuild Acting up and not flying at all!! albysurfin Slope 9 Jun 26, 2007 11:45 PM
Question SuperFreak Bat Tuning Issues albysurfin Slope 8 Jan 20, 2007 05:50 PM