Vassa F5 Tiger  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
    Search This Thread  
 
Printable Version



All Forums >> Electric Aircraft Universe >> Electric RC Jets >> Vassa F5 Tiger Page: [1]

Login
Message << Older Topic   Newer Topic >>
Vassa F5 Tiger - 1/2/2004 7:20 PM   
PJFaller


 

Posts: 374
Score: 100
Joined: 8/11/2002
Last Login: 7/2/2009
From: Daytona Beach, FL,
Status: offline 		Does anyone have any info or build tips on the vassa f5. What batteries did you use, engine, any upgrades to think of?

thanks,
Pete

Hide Signatures
       Post #: 1

RE: Vassa F5 Tiger - 1/5/2004 2:09 PM   
NCC-1701



Posts: 204
Score: 100
Joined: 3/9/2002
Last Login: 11/11/2005
From: Niceville, FL, USA
Status: offline 		Pete,

I'm nearing completion on one. I'm using the VASA fan, Mega 16/15/3 motor, 12 cells, Sanyo 1950 FAUPs. For speed control, I'll be using either a Phoenix 35 or Phoenix 45. I'm going with an FMA M-5 receiver, GWS HP Naro BB servos for the ailerons, and a Naro Plus for elevator.

I'm still working receiver, battery, and ESC placement. The kit is very nice. However, access to the battery could be better. It's tricky trying to keep the battery leads a reasonable length.


Rob

Hide Signatures

(in reply to PJFaller)
       Post #: 2

RE: Vassa F5 Tiger - 1/5/2004 7:29 PM   
PJFaller


 

Posts: 374
Score: 100
Joined: 8/11/2002
Last Login: 7/2/2009
From: Daytona Beach, FL,
Status: offline 		rob,

there is an rcji review of it in the september october issue and thyey put the battery and receiver under the canopy. I just ordered mine should be here in a day or two. Was it a quick build?

Pete

Hide Signatures

(in reply to NCC-1701)
       Post #: 3

RE: Vassa F5 Tiger - 1/5/2004 8:20 PM   
NCC-1701



Posts: 204
Score: 100
Joined: 3/9/2002
Last Login: 11/11/2005
From: Niceville, FL, USA
Status: offline 		Pete,

The kit is a quick build, prefabricated glasas fuse, pre-sheeted wings and pre-framed tail surfaces. I covered the wings and tail feathers with Ultracote and painted the fuse with the new Ultra Paints. I'm ready to start installing the fan and electronic gear. The frustrating part is inside the fuselafe there are three pieces of blue foam. One piece form the upper deck for the battery and two pieces form a simplified inlet. The top access hatch is right aft of the cockpit area. I built a 12 cell offset-brick battery. It fits inside OK, but can't be moved too far aft. I was planning on locating the speed control just aft of the battery, but even then, getting to the connector to recharge the battery will be a challenge.


Rob

Hide Signatures

(in reply to PJFaller)
       Post #: 4

RE: Vassa F5 Tiger - 1/8/2004 12:49 AM   
PJFaller


 

Posts: 374
Score: 100
Joined: 8/11/2002
Last Login: 7/2/2009
From: Daytona Beach, FL,
Status: offline 		rob,

I jst got it, but Im confused!!

This is my first experince with electrics. I have no idea about motors or spped controllers. I went to the Mega site and found the brushless 16/15/3 with the 45 amp controller. I am wondering what kind of performance I will get with this. I want as much power as I can get. Let me know what you think. Also what cells do I use. Should I use suralites, or some other kind of pack.? I just dont know. Thanks

Pete

Hide Signatures

(in reply to NCC-1701)
       Post #: 5

RE: Vassa F5 Tiger - 1/8/2004 6:34 PM   
NCC-1701



Posts: 204
Score: 100
Joined: 3/9/2002
Last Login: 11/11/2005
From: Niceville, FL, USA
Status: offline 		Pete,

The Mega 16/15/3 is a great motor for this jet. If the speed control is the Castle Creations Phoenix 45, that is one of the best combinations you can get. For cells in this set up, I recommend the Sanyo 1950 FAUPs. Twelve is a good number to start with. The Phoenix 45 can tale up to 16 cells, but for more than 12, you need to disable the battery eliminator circuit and add a separate battery to power the receiver and servos. I made an offset brick pack for mine, which was a mistake as I have to have long wires leading to the speed control. I'm going to rebuild it as a 2x6 double stick pack so I can have a shorter lead. You can buy pre-built battries, but it's alot cheaper to do it yourself.

I haven't finalized my receiver placement yet, but all the electronics will be located in the rear and be accessible through the underside fan hatch. I plan to rout the antenna out the rear of the aircraft. I don't want it in a location where it will be exposed to electromagnetic fields from the battery. I an going to attach the speed control to the top of the fuselage, about where the blue foam deck ends. I don't really like having to open the bottom hatch for recharging, but I don't see any other way. I may try design an alternative to tape.

Here are some useful links for you. I buy most of my batteries and building supplies from Dynamo Electrics and Cheap Battery Packs. MEC seems to have the best prices around on Castle Creations speed controls and Mega Motors. E-Zone is an awesome resource for electric aircraft.

http://www.dynamoelectrics.com/
http://www.unipros.com/cbpsite/mainasp.asp?session_id=86360
http://www.modelelectronicscorp.com/
http://www.ezonemag.com/

For performance, this set up should break the 100 mph mark and offer at least 4 minutes of flying time. Motocalc does not have the data for the Vasa fan. I suspect 5 minutes at full throttle is possible and 6 plus with throttle management.

If you need any more information, please feel free to ask.

Rob

_____________________________

Warping the R/C Universe!

Hide Signatures

(in reply to PJFaller)
       Post #: 6

RE: Vassa F5 Tiger - 1/8/2004 9:00 PM   
PJFaller


 

Posts: 374
Score: 100
Joined: 8/11/2002
Last Login: 7/2/2009
From: Daytona Beach, FL,
Status: offline 		I talked to greg today at maxx products and he has me a set-up coming with something similar to the 16/15/3 mega motor. He also is sending me some 10 cell sanyo 1900 nimh battery packs. He said that that should run that thing up to 5 minutes per flight and should move it along pretty good. The one thing he has heard about that airplane is that guys have been losing them due to range problems. He thinks it might be something to do with the carbon in the fan. He recommended using a whip antenna, and I think im going to use a revolution antenna on the dual conversion 4 channel feather hi-tec receiver. I will mount as far away from the speed controller and battery as possible. Im off to cover the wings thanks for the info. Do you think what he is sending me will work fine?

Pete

Hide Signatures

(in reply to NCC-1701)
       Post #: 7

RE: Vassa F5 Tiger - 1/8/2004 9:23 PM   
NCC-1701



Posts: 204
Score: 100
Joined: 3/9/2002
Last Login: 11/11/2005
From: Niceville, FL, USA
Status: offline 		Pete,

If you're getting a HiMaxx motor, it should work well. They're getting rave reviews by the 3D foamie crowd and the smaller ones are becoming very popular in the micro fans. I've read some discussion on e-zone about radio glitches with these. I hadn't heard the carbon theory before, but it makes sense.

I didn't know the HiTec feather is dual conversion. I thought it was single, unless there is a new version out. I know the 555 and Electron 6 are dual conversion. I'm planning on using an FMA receiver, either M-5 or Quantum 6. I've had rock solid performance from M-5's in my brushless T-33 and my Zagi 400X. I'm going to pose the carbon fan theory to some of the radio gurus I know. I may change to whip antenna, or at least get the antenna routed outside. It'll drag behind like a streamer, but should be clear of the interference sources.


Rob

_____________________________

Warping the R/C Universe!

Hide Signatures

(in reply to PJFaller)
       Post #: 8

RE: Vassa F5 Tiger - 1/8/2004 10:00 PM   
NCC-1701



Posts: 204
Score: 100
Joined: 3/9/2002
Last Login: 11/11/2005
From: Niceville, FL, USA
Status: offline 		Pete,

I just checked the specs for the 1900's. They look good. They're a little heavier than the 1950 FAUPs, but the internal resistance is low, so they should deliver good voltage under load. Good luck with your Tiger.

Are you planning on going to SEFF in June? Several of us EDF'ers who live in the Southeast are trying to recruit a good EDF turn out.


Rob

http://www.koolflightsystems.com/seff.htm

_____________________________

Warping the R/C Universe!

Hide Signatures

(in reply to NCC-1701)
       Post #: 9

RE: Vassa F5 Tiger - 1/8/2004 11:39 PM   
PJFaller


 

Posts: 374
Score: 100
Joined: 8/11/2002
Last Login: 7/2/2009
From: Daytona Beach, FL,
Status: offline 		I never heard of the SEFF fly in but it sounds like a good idea to me. I covered the wings this afternoon and it looks real cool all put together. I would think that greg at maxx knows what he is doing Ive heard nothing but good things about him. He says the combo he is sending me will fly it real nice. Any how let me know how you progress and thanks for the info.

Pete

Hide Signatures

(in reply to NCC-1701)
       Post #: 10

RE: Vassa F5 Tiger - 1/9/2004 9:47 PM   
sibstar


 

Posts: 7
Score: 100
Joined: 1/8/2004
Last Login: 6/7/2005
From: Bath, UNITED KINGDOM
Status: offline 		I purchased this model about a month ago complete with a kontronics 400/36 brushless motor and kontronics 40amp esc.
Battery 10x sanyo 1600
A nice quick straight forward build with every part fitting nicely.
I have decided to fit the esc at the back of the battery bay as per instrutions.
My problem is where to locate the reciever (0.5"x2" size futaba).
I was going to fit the rec in the same place as the esc but i'm worried about interference being to close to esc and battery
The best option for me is to mount to the side of the fan unit (other side to elv servo), and run the antenna out the exhaust.
In this position the rec will be no more than 2" from motor.

Can anyone tell me if this will be o.k ? I'm abit worried about motor interference as well

My first flight will follow soon as the weather allows

Si

Hide Signatures

(in reply to NCC-1701)
       Post #: 11

RE: Vassa F5 Tiger - 1/15/2004 7:45 AM   
viper21


 

Posts: 916
Score: 100
Joined: 3/13/2002
Last Login: 2/5/2009
From: Orange, CA, USA
Status: offline 		I am building mine with the Vasa 65mm fan and a Mega 16/15/2 and 10 zapped CP 1700's and a Hacker Master 40-3P ESC. I will also be fiberglassing the wing and will sheet the stabs with super light 1/16 contest balsa and will glass them as well. Then I will airbrush the whole plane with Testors Model Master Enamels as soon as I figure out which color scheme I will use. Eventually when the prices come down it will have a lipo pack to increase power and flight duration. I will post some pictures soon.
Viper

Hide Signatures

(in reply to sibstar)
       Post #: 12

RE: Vassa F5 Tiger - 1/19/2004 1:10 PM   
sibstar


 

Posts: 7
Score: 100
Joined: 1/8/2004
Last Login: 6/7/2005
From: Bath, UNITED KINGDOM
Status: offline 		Range checking my f5 with the receiver in the rear of fuse with the antenna running out the rear, nasty glitches took me back to the drawing board. i relocated the the rec forward of the wing spa running the antenna to the nose and taping it there. With more range checking everything seemed fine. Maiden flight was great, straight of the ramp into the sky brought her back round to the right levelled of one click to the right on the tranny and she was nice and straight. very sensitive on ailerons though..sort that next time. didn't give her full whack but still a nice turn of speed there. Landing was surprisingly straight forward, the plane has a nice glide.

I just need to tidy up the antenna (maybe get a whip type), and get spraying. i'm gonna do the dark green/ sand as used in Nam.

Hide Signatures

(in reply to viper21)
       Post #: 13

RE: Vassa F5 Tiger - 1/25/2004 11:27 PM   
PJFaller


 

Posts: 374
Score: 100
Joined: 8/11/2002
Last Login: 7/2/2009
From: Daytona Beach, FL,
Status: offline 		SI,

Glad to hear it flew well. I am just waiting for my engine and esc and I should be on my way in a few weeks.
I am doing the same scheme as on the box except for yellow instead of red. Looks real nice. I will let you know how I progress.

Pete

Hide Signatures

(in reply to sibstar)
       Post #: 14

RE: Vassa F5 Tiger - 1/25/2004 11:50 PM   
viper21


 

Posts: 916
Score: 100
Joined: 3/13/2002
Last Login: 2/5/2009
From: Orange, CA, USA
Status: offline 		I am considering airbrushing my F5 in one of the US Navy's Top Gun Agressor squadron airplanes that are painted like Soviet aircraft or at least where. They used the F5 and A4 because they handled great and the F5 was also fast. So it was a formidable opponet with a pilot in it that could fly it.
Viper

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to PJFaller)
       Post #: 15

RE: Vassa F5 Tiger - 1/26/2004 1:09 PM   
sibstar


 

Posts: 7
Score: 100
Joined: 1/8/2004
Last Login: 6/7/2005
From: Bath, UNITED KINGDOM
Status: offline 		[image][/image]

Attachments
Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to viper21)
       Post #: 16

RE: Vassa F5 Tiger - 2/4/2004 12:50 PM   
sibstar


 

Posts: 7
Score: 100
Joined: 1/8/2004
Last Login: 6/7/2005
From: Bath, UNITED KINGDOM
Status: offline 		I got some colour on my f5 using humbrol enamel paint thinned out and applied with the help of a friend and his airbrush kit. I'm really pleased with the results considering i never used an airbrush before.
Just scared of flying it again now

Attachments
Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to sibstar)
       Post #: 17

RE: Vassa F5 Tiger - 2/4/2004 12:56 PM   
sibstar


 

Posts: 7
Score: 100
Joined: 1/8/2004
Last Login: 6/7/2005
From: Bath, UNITED KINGDOM
Status: offline 		this is where my rec has ended up, far away from motor as possible. i found it too glitchy anywhere else. i put some ferrite rings on throttle and ailerons. esc mounted at back of battery compartment.

Attachments
Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to sibstar)
       Post #: 18

RE: Vassa F5 Tiger - 2/4/2004 4:18 PM   
viper21


 

Posts: 916
Score: 100
Joined: 3/13/2002
Last Login: 2/5/2009
From: Orange, CA, USA
Status: offline 		Looks Great Sib, you did a great airbrush job it came out nicely. Only thing is that your receiver might be blocking air to the fan and at the very least it creating turbulence in the intake duct. Most guys I know that built the plane put the RX all the way back in the tail section above the ducting. Its where I plan to mount mine. Did you try wrapping the RX in Tin Foil or Aluminum foil? That should help with the interefearance as well I will try mine like that before I block air to the fan I would think that would hurt thrust output. I will let you know how mine works out. Oh What type of RX are you using Sib? That might be the problem also because I know of several guys flying them with the receivers in the tail. Your suggestion of a base loaded antenna or what we call a Deans Antenns would probably work also. Either way your plane came out sharp looking I will be doing the other agressor colors I think the ones I posted.
Viper

Hide Signatures

(in reply to sibstar)
       Post #: 19

RE: Vassa F5 Tiger - 2/4/2004 9:16 PM   
sibstar


 

Posts: 7
Score: 100
Joined: 1/8/2004
Last Login: 6/7/2005
From: Bath, UNITED KINGDOM
Status: offline 		thanks for your comments viper. my rec is a standard futaba r147. size 64/24.2/17.6 mm..so abit large to mount at the back..i am looking to replace this with something new. any suggestions? i havn't tried foil either so maybe worth trying that...this is my first electric plane so all is new to me. i didn't realise obstructing the airflow can upset the thrust through the fan so much. i found on a previous thread ( i think on the e zone )the hobby lobby f5 has the rec mounted just behind the wing spa on the side wall like mine with no complaints.
how much thrust do you think i could be losing % wise?

Hide Signatures

(in reply to viper21)
       Post #: 20

RE: Vassa F5 Tiger - 2/4/2004 10:28 PM   
viper21


 

Posts: 916
Score: 100
Joined: 3/13/2002
Last Login: 2/5/2009
From: Orange, CA, USA
Status: offline 		Hi Sib, well its hard to tell but generally on any ducted fan aircraft and especially electrics because the power to weight ratio is not like a glow ducted fan you need to get as much thrust as possible. I am almost positive that the RX inside your intake ducting in causing turbulence in the intake and your fan needs "Clean Air" from the intakes. I would defintely remove it from the intake. Hard to say how much thrust your losing but any lost is too much. I am using an Airtronics 7 channel Z receiver a blue one or a Hitec Electron both are narrow and short. You could also try a Hitec 555 FM all these recievers are Narrow band so that should help and wrapping them in foil will also help. I am sorry I am not familar with your receiver but all three receivers I have mentioned are excellent RX's there is also the Berg 6 and an FMA 6 channels just make sure to get a narrow band FM. I take it that your using a Futaba transmitter so you cannot not use the Airtronics RX but the Hitecs are excellent RX's and they should help.
Viper

Hide Signatures

(in reply to sibstar)
       Post #: 21

RE: Vassa F5 Tiger - 2/5/2004 12:54 PM   
sibstar


 

Posts: 7
Score: 100
Joined: 1/8/2004
Last Login: 6/7/2005
From: Bath, UNITED KINGDOM
Status: offline 		thanks viper. My tx is a multiplex cockpit .As you suggested i will wrap the rx in foil and try to squeeze it down the back where the exhaust ducting is. this will cause abit of a bulge in the duct but if its gonna be better than the way i got it then its worth a try.
i need a new rx anyway as i have more models than rx at the moment so maybe i'll get a d/c type and stick it in the f5.
I think there is a lack in the design with this kit regarding the install of the rx system which lets an otherwise quality kit down. The instructions give the impression that the prototype has all the bat,rx,esc stuffed in the canopy which would result in an expensive throw away dart. anyway just waiting for good weather now for another go.

si

Hide Signatures

(in reply to viper21)
       Post #: 22

Page:   [1]
All Forums >> Electric Aircraft Universe >> Electric RC Jets >> Vassa F5 Tiger
Page: [1]





Jump to:


 
Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Member Video Posts | RCU Video Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

© 2001 - 2007 24-7 RC, LLC, all rights reserved.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America

Kaango.com Classifieds

2.219RCU1