HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Nov 19, 2012, 06:15 AM
Registered User
edf_rookie's Avatar
Australia, QLD, Brisbane
Joined Mar 2011
328 Posts
Quote:
Originally Posted by wamsy55 View Post
http://www.youtube.com/watch?v=thafZ...hannel&list=UL

Here is some video of me flying my Vyper Bipe. Please excuse the rusty thumbs. Next weekend if the weather is good I will get out the HD cam and do this plane justice.
Nice flying Wamsy

I wish my thumbs were that rusty
edf_rookie is offline Find More Posts by edf_rookie
Reply With Quote
Sign up now
to remove ads between posts
Old Nov 19, 2012, 07:02 AM
Registered User
nebwake's Avatar
United States, NE, Lincoln
Joined Mar 2011
707 Posts
I've seen a few engines do this, usually its a pressure in the cowl problem that can be fixed by soldering a nipple on the hole that is over the diaphram side of the carb and running a tube either inside the fuse or in front of the carb inlet.

Quote:
Originally Posted by quadracer View Post
Anyone ever had their GT33 four-stroking/bogging in negative G maneuvers? Mine was doing it today while Hugo was flying it, and I'm curious if anyone else has had this happen, and what to do to fix it.
nebwake is offline Find More Posts by nebwake
Reply With Quote
Old Nov 19, 2012, 07:07 AM
Registered User
jsmith285's Avatar
Fort Wayne
Joined Feb 2009
4,725 Posts
Quote:
Originally Posted by alexjschauer View Post
How long has 3DHS had this?
I've never seen it
http://www.3dhobbyshop.com/120-Extra...e_p_16015.html
We've had one for a while

http://3dhsda200extra120.shutterfly.com/
jsmith285 is offline Find More Posts by jsmith285
Reply With Quote
Old Nov 19, 2012, 07:12 AM
220lb of Canned Heat, baby
quadracer's Avatar
United States, IN, Derby
Joined Feb 2012
3,676 Posts
Good idea, but wouldn't it still do it in positive G maneuvers if it was cowl pressure? I ain't saying you're wrong, but it just seems like cowl pressure would only be affected by forward airspeed, and not the attitude of the plane.
I don't think the GT33 has a hole in the plate that you're referring to. It has a fuel line tapped straight out of the crankcase and into the carb.
quadracer is online now Find More Posts by quadracer
Reply With Quote
Old Nov 19, 2012, 07:16 AM
Registered User
jsmith285's Avatar
Fort Wayne
Joined Feb 2009
4,725 Posts
Quote:
Originally Posted by quadracer View Post
Anyone ever had their GT33 four-stroking/bogging in negative G maneuvers? Mine was doing it today while Hugo was flying it, and I'm curious if anyone else has had this happen, and what to do to fix it.
Its usually from not having enough openings for the air to exit from the engine area.
jsmith285 is offline Find More Posts by jsmith285
Reply With Quote
Old Nov 19, 2012, 07:48 AM
Registered User
nebwake's Avatar
United States, NE, Lincoln
Joined Mar 2011
707 Posts
I've usually had that problem when the plane is in KE or inverted. And as Jim said, if you don't have enough air exit holes you will have problems too. Make sure you have 3x more exit area than enterance.

Quote:
Originally Posted by quadracer View Post
Good idea, but wouldn't it still do it in lpositive G maneuvers if it was cowl pressure? I ain't saying you're wrong, but it just seems like cowl pressure would only be affected by forward airspeed, and not the attitude of the plane.
I don't think the GT33 has a hole in the plate that you're referring to. It has a fuel line tapped straight out of the crankcase and into the carb.
nebwake is offline Find More Posts by nebwake
Reply With Quote
Old Nov 19, 2012, 08:04 AM
220lb of Canned Heat, baby
quadracer's Avatar
United States, IN, Derby
Joined Feb 2012
3,676 Posts
Quote:
Originally Posted by jsmith285 View Post
Its usually from not having enough openings for the air to exit from the engine area.
I have both of the vented panels on the tunnel, is that not enough? It's a 72 SC.
quadracer is online now Find More Posts by quadracer
Reply With Quote
Old Nov 19, 2012, 01:07 PM
Team Twisted!
hone1er's Avatar
United States, CA, Hercules
Joined Dec 2011
4,227 Posts
More 71'' Slick action
3DHS 71'' Slick (5 min 1 sec)
hone1er is online now Find More Posts by hone1er
Reply With Quote
Old Nov 19, 2012, 02:46 PM
Riley O'Brien
obrieri's Avatar
Waverly, NE
Joined Jul 2008
507 Posts
nm...got it handled
obrieri is offline Find More Posts by obrieri
Last edited by obrieri; Nov 19, 2012 at 03:01 PM.
Reply With Quote
Old Nov 19, 2012, 03:10 PM
Team 3DHS
wamsy55's Avatar
Nashville , Tennessee
Joined Jan 2009
5,473 Posts
Quote:
Originally Posted by hone1er View Post
Nice flying!
wamsy55 is offline Find More Posts by wamsy55
Reply With Quote
Old Nov 19, 2012, 03:34 PM
Team Twisted!
hone1er's Avatar
United States, CA, Hercules
Joined Dec 2011
4,227 Posts
Quote:
Originally Posted by wamsy55 View Post
Nice flying!
Thanks dude!
hone1er is online now Find More Posts by hone1er
Reply With Quote
Old Nov 19, 2012, 03:41 PM
Sippin the Koolaid!
losifanatic's Avatar
United States, NC, Hertford
Joined Oct 2007
16,446 Posts
Wish l could watch videos. I don't have an internet connection good enough too at home
losifanatic is offline Find More Posts by losifanatic
Reply With Quote
Old Nov 19, 2012, 04:14 PM
Gone Huckin'
turnerm's Avatar
Charlotte, NC
Joined Jan 2011
9,259 Posts
Quote:
Originally Posted by losifanatic View Post
Wish l could watch videos. I don't have an internet connection good enough too at home
You missed two good ones! Joe just ripped it up on his new 71 Slick and Wamsy did his typical magic with the Byper. These guys make me feel like a beginner!!
turnerm is offline Find More Posts by turnerm
Reply With Quote
Old Nov 19, 2012, 04:28 PM
3D? I only got two thumbs!
United States, MA
Joined Jul 2012
1,206 Posts
Today's lesson learned: if you are making a low harrier pass downwind and get the urge to turn and come back upwind, anticipate what the wind will do to the plane in the turn first :-)

Today's question: I now have a xoar beechwood 14x7 prop with a notch in one blade that's about 3/32 long and 1/32 deep. And damage on the outer 5/8" of the other blade that is mostly in the 1/32 depth range but gets up to 1/16. No splitting visible. Do I clean up the edge a little, balance it, and fly? Or is it safer to just toss it?
AeroKen is online now Find More Posts by AeroKen
Reply With Quote
Old Nov 19, 2012, 06:53 PM
Registered User
nebwake's Avatar
United States, NE, Lincoln
Joined Mar 2011
707 Posts
Get rid of it
nebwake is offline Find More Posts by nebwake
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion You are addicted to flying when.... postalflyer72 Electric Plane Talk 34 Jul 16, 2011 11:12 PM
Video Angelo Lomelí flying 3D antics Jorge Fernandez Electric Plane Talk 0 Sep 30, 2006 02:22 PM
Tiger Moth antics - flying inverted w/video SnoJetter Parkflyers 49 Sep 16, 2003 07:25 PM
Help! Getting addicted to Park Flying fly4fun Parkflyers 11 Feb 16, 2002 10:58 AM
You know when your addicted to Slow Flying when..... Gman Parkflyers 51 Aug 05, 2001 03:19 AM