HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Nov 29, 2010, 05:06 PM
Registered User
T-CAT's Avatar
United States, CA, Los Angeles
Joined Aug 2008
5,435 Posts
Quote:
Originally Posted by Ben D Wing View Post
As per the funjet instructions works extremely well, quote:

''The first flight ...
Do not attempt to hand-glide this model!
The FunJet is designed for hand-launching only - always launch
directly into wind.
If you are a beginner to model flying we strongly recommend
that you ask an experienced model pilot to help you for the
first few flights. The model should be launched at ½ to ¾-
throttle, with the wings level and the nose angled up at an angle of 20 - 30°.
Don’t launch the model “down-hill”, like a glider!''

If you do launch it at an angle below the horizon then that is the point where you are most likely to injure yourself.
Thanks Ben. I appreciate your input. To be honest, a pusher makes me nervous. I have launched EDF's hundreds of times so technique shouldn't be an issue. This should hopefully minimize the risk. However, this won't eliminate the risk associated with pushers. I have everything I need for this ultra, except for the jet. Now I just need to determine whether or not I'm comfortable launching it. I could always put the power system and electronics in something else. Everything has it's risks, but now I just need to weigh them.
T-CAT is offline Find More Posts by T-CAT
Reply With Quote
Sign up now
to remove ads between posts
Old Nov 29, 2010, 05:23 PM
Fast? I got something 4 ya!
XtremeWingRC's Avatar
United States, WI, Oak Creek
Joined Oct 2007
2,498 Posts
Once youve been flying a pusher for a while, like a few hundred flights and 2 years later your gonna laugh at this, because it becomes like breathing when you throw it. I could launch it with my eyes closed.

Also too fellas, you dont have to have the power on when throwing, just throw it then hit the throttle. I know it will torque roll a lil when doing that, but if your really that afraid then try that.

casey
XtremeWingRC is offline Find More Posts by XtremeWingRC
Reply With Quote
Old Nov 29, 2010, 05:26 PM
"Where are the shovels?"
wise guy's Avatar
Joined Apr 2010
818 Posts
The problem with the no throttle trick is weight... the 1500 watt + planes are so heavy!
wise guy is offline Find More Posts by wise guy
Reply With Quote
Old Nov 29, 2010, 05:36 PM
customstandoffs
cmala's Avatar
USA, AL, Madison
Joined Dec 2007
8,547 Posts
Quote:
Originally Posted by XtremeWingRC View Post
Once youve been flying a pusher for a while, like a few hundred flights and 2 years later your gonna laugh at this, because it becomes like breathing when you throw it. I could launch it with my eyes closed.

Also too fellas, you dont have to have the power on when throwing, just throw it then hit the throttle. I know it will torque roll a lil when doing that, but if your really that afraid then try that.

casey

complacency can be deadly
cmala is offline Find More Posts by cmala
Reply With Quote
Old Nov 29, 2010, 07:05 PM
rrp
Registered User
rrp's Avatar
Hampton Roads, VA Home of the 1st Fighter Wing, USAF
Joined Jan 2006
137 Posts
Quote:
Originally Posted by Jurgen Heilig View Post
You really don't need a rubber band:

Another advantage of a turbine over an electric prop drive.

Jürgen
Well, I really didn't mean the bungee ... rubber band ... as in powered. It was supposed to be a joke, Jurgen. Yeah, I won't quit my day job.
rrp is offline Find More Posts by rrp
Reply With Quote
Old Nov 30, 2010, 02:28 AM
Registered User
Jurgen Heilig's Avatar
53859 Niederkassel, Germany
Joined Sep 2000
18,762 Posts
Quote:
Originally Posted by wise guy View Post
Like it or not, your finger comes within millimeters of being cut off forever everytime you launch a funjet. This is a problem.
There are many ways to launch a FunJet and your fingers don't need to come close the prop. Here is an older compilation of FJ hand launches:
How to Hand launch A FunJet (1 min 39 sec)


Contrary to some launches in the video, it is safer to continue the circular motion of your throwing arm.

Jürgen
Jurgen Heilig is offline Find More Posts by Jurgen Heilig
Reply With Quote
Old Nov 30, 2010, 11:02 AM
Life's short - Enjoy!
DeeCee 57's Avatar
Zurich, Switzerland
Joined Nov 2009
628 Posts
found that hand-lauching my Himax FJ full throttle at +/- 45° angle (yes, against the wind) gives:
- predictable results
- time to get rid of the moisture/dirt from your right hand (mode 2) on your trousers, then go to the right stick
- time for flight path adjustments if needed

Guess the method will work as well on the FJU when I'm finished (working on those CF fins right now )
DeeCee 57 is offline Find More Posts by DeeCee 57
Reply With Quote
Old Nov 30, 2010, 11:37 AM
^(_Mš®ăĻēŜĐ_)^ ЯuĽeˇ U
Greece, Attica, Elefsina
Joined Sep 2010
216 Posts
Quote:
Originally Posted by dicker View Post
Ok, the hinges of the FJ ultra are robust and perform up to 300kph (180mph) without any problem.
Can you suggest us a setup to achieve this speed?? Thanks mate!!

Dmitris, Greece.
MoRaLeSD is offline Find More Posts by MoRaLeSD
Reply With Quote
Old Nov 30, 2010, 12:29 PM
foamforce pilot
dicker's Avatar
Deutschland, Schleswig-Holstein, Braak
Joined Jan 2004
158 Posts
Quote:
Originally Posted by MoRaLeSD View Post
Can you suggest us a setup to achieve this speed?? Thanks mate!!

Dmitris, Greece.
http://www.rcgroups.com/forums/showthread.php?t=1340571

Motor was a Dymond HQ3651 from modellhobby.de

Julian
dicker is offline Find More Posts by dicker
Reply With Quote
Old Nov 30, 2010, 02:42 PM
^(_Mš®ăĻēŜĐ_)^ ЯuĽeˇ U
Greece, Attica, Elefsina
Joined Sep 2010
216 Posts
Hm let me see!
MoRaLeSD is offline Find More Posts by MoRaLeSD
Reply With Quote
Old Dec 01, 2010, 04:36 AM
foamforce pilot
dicker's Avatar
Deutschland, Schleswig-Holstein, Braak
Joined Jan 2004
158 Posts
Quote:
Originally Posted by MoRaLeSD View Post
Hm let me see!
what? Logs and data is in the linked thread?

Julian
dicker is offline Find More Posts by dicker
Reply With Quote
Old Dec 03, 2010, 12:38 PM
Trusted Verified User
griffin 27's Avatar
United States, CA, San Diego
Joined May 2009
289 Posts
I received and installed one of these and I'm using a HET motor. The problem I have with it is the hole around the motor shaft is to small to fit the prop adapter close to the motor.

Does anyone else have this problem, I guess I could always dremel out the hole and make it bigger.


Quote:
Originally Posted by ongl View Post
Gryphon,

Yup my het motor mount looks exactly like that. Anyway I have included some photos for your reference. Hope this helps!

ongl
griffin 27 is offline Find More Posts by griffin 27
Reply With Quote
Old Dec 03, 2010, 12:53 PM
Registered User
Ben D Wing's Avatar
The Peak District
Joined Dec 2006
2,894 Posts
Quote:
Originally Posted by griffin 27 View Post

Does anyone else have this problem, I guess I could always dremel out the hole and make it bigger.
I haven't received mine yet, but there doesn't look to be a lot of meat to trim off that mount. Maybe you could try a different adaptor as some have deeper immersions than others.
Ben D Wing is offline Find More Posts by Ben D Wing
Reply With Quote
Old Dec 03, 2010, 07:02 PM
rrp
Registered User
rrp's Avatar
Hampton Roads, VA Home of the 1st Fighter Wing, USAF
Joined Jan 2006
137 Posts
Quote:
Originally Posted by griffin 27 View Post
I received and installed one of these and I'm using a HET motor. The problem I have with it is the hole around the motor shaft is to small to fit the prop adapter close to the motor.

Does anyone else have this problem, I guess I could always dremel out the hole and make it bigger.
I'm assuming this is the red aluminum mount, griffen? I too, ordered one of those. What is the center hole diameter? The base of my adapter is abouts 10 mm. Looks like a very tight fit?

It appears Tower had the yellow/gold one back in stock early this week and I was able to nab the last one from their stock. I expect to get it next week. My airframe has shipped from Malaysia. Making progress, slowly.
rrp is offline Find More Posts by rrp
Reply With Quote
Old Dec 05, 2010, 04:16 PM
Registered User
dogshome's Avatar
Joined Dec 2006
284 Posts
Quote:
Originally Posted by schim View Post

The other problem was: totally wrong setup CoG!!!!
I just saw the vid

Very funny and I know the feeling:- "Should I try and land? or just stay up here??"
dogshome is offline Find More Posts by dogshome
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Funjet Ultra, more fast more fun.... tbmg1 FPV Talk 34 Jul 28, 2010 08:36 AM
Discussion Muliplex EasyStar WBFlyer FPV Talk 9 Mar 10, 2010 03:09 PM
Sold muliplex ASW 27 NIB bushpilotx1 Aircraft - Sailplanes (FS/W) 7 Aug 31, 2009 05:41 PM
Question Muliplex Alpha Junior Radio Instalation Allan Glover Sailplane Talk 3 Apr 09, 2004 01:37 AM
Muliplex MultiCharger 4010DC - is mine faulty ? borgs Batteries and Chargers 0 Jul 12, 2003 07:01 AM