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Feb 05, 2011, 06:11 PM
Landin' On The Canopy BAD
F-86FLIER4LIFE's Avatar
i agree with snivilous, the thrust vectoring has been taken to far, for those planes that actually do have it in full scale, then by god put it on there, but putting it on f 16's and things like that is just stupid. IMHO any jet like an f 16 or f 18 doing a flat spin like these do just looks stupid
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Feb 06, 2011, 04:19 AM
Registered User
firehawkzach's Avatar
Eh, thats the beauty of it we can all have our opinions and modify our planes accordingly lol.

I just like innovation of aircraft in general and tend to think that an aircraft with thurst vectoring technology would have an advantage in air-to-air operations. I think the high alpha capability of an F-18 after a catapult malfunction would be superb. The weight would be an issue for sure!

As luck would have it I am having issues with my TV system right now lol.
Last edited by firehawkzach; Feb 06, 2011 at 04:29 AM.
Feb 07, 2011, 11:58 AM
kill your idols
ZEROSKIN76's Avatar
thats one sweet jet
Feb 07, 2011, 04:40 PM
You are a "go" for reentry
Maxthrottle's Avatar
Quote:
Originally Posted by snivilous
...huge draw back with vectored thrust. You need to add tons of weight for the actuators to move around 14,000-22,000 pounds of thrust....
This actually isn't true. The Eurofighter team as well as many other Designers have found via the join X31 project, there are advantages to having TV on any jet. Its more economics, cost overruns and deadlines that often remove TV from many programs.

The Eurofighter has a solution to be added awaiting several cash poor governments approval that proved that TV wasn't heavier, as most already have the actuators needed to vary the nozzle geometry, and that in all manueovers and landings it actually reduces the fuel cost/load and gear maintenance over the life time of the vehicle.

It came up in the F-35A and C design also but as we know that is knee deep in fly aways costs so it gets nixed not because of it having some disadvantages; its the development needed to integrate it into an already well over due multi Billion dollar program in a bad economy.

But as for scale preferrence; totally agree; though I remember seeing FS F-16 put into flat spins at a few airshows without TV. I think its whats stopping them from developing other models that totally don't fit the use of TV, e.g. A-10, F-5, SU-39 or anything in a 90mm straight tail.

For these models, the TV makes up for the lack of rudder. As Mike mentioned you can simply lock it in place with one or two screws, put a thrust tube to bypass it and add a cover for the gap between the fuse and the nozzle.

Removing it may be harder now as they have become very generous with glue in that area that you will likely rip the tail apart trying to get it out. It was easy to remove on the earlier SU34 and F-35 but later they added more glue.

I took one off my Euro and put it in my LX F-35.

As for the landing gear and grass. If you angle drill a hole for a thicker axle an reinforce the mounts it'll handle it. Mike again correctly points out they use a thinner bent wire to connect the wheel to the strut at the proper angle which causes the weak point.
Last edited by Maxthrottle; Feb 07, 2011 at 04:47 PM.
Feb 10, 2011, 02:20 PM
cmd
cmd
Registered User
cmd's Avatar

Bec?


Is there a separate system for powering the 8 servos plus three electrric retract gear other than the ESC in the aircraft? I didn't see anything in the parts lists or review that indicates a separate power source. It seems to me most ESCs wouldn't be able to provide more than an amp or two to the servos and I would think that would be insufficient for this model.
Feb 10, 2011, 03:34 PM
Landin' On The Canopy BAD
F-86FLIER4LIFE's Avatar
Quote:
Originally Posted by cmd
Is there a separate system for powering the 8 servos plus three electrric retract gear other than the ESC in the aircraft? I didn't see anything in the parts lists or review that indicates a separate power source. It seems to me most ESCs wouldn't be able to provide more than an amp or two to the servos and I would think that would be insufficient for this model.
its called a BEC man u can power everything with a seperate BEC and battery if desired.
Feb 10, 2011, 05:48 PM
cmd
cmd
Registered User
cmd's Avatar
Quote:
Originally Posted by F-86FLIER4LIFE
its called a BEC man u can power everything with a seperate BEC and battery if desired.
Thankyou. I'm well aware of what a BEC does. The question is - is there one in the kit? If not, as there has been no mention of one, how many amps are available to power the servos, landing gear, and receiver from the ESC when running a 6S LiPo?
Feb 10, 2011, 06:06 PM
High Altitude Specialist
snivilous's Avatar
"...and an 85 amp ESC with switch mode BEC..."
Feb 10, 2011, 07:44 PM
Landin' On The Canopy BAD
F-86FLIER4LIFE's Avatar
Quote:
Originally Posted by cmd
Thankyou. I'm well aware of what a BEC does. The question is - is there one in the kit? If not, as there has been no mention of one, how many amps are available to power the servos, landing gear, and receiver from the ESC when running a 6S LiPo?
i do not know a whole lot about the plane as i just got it not to long ago, but i know that the esc has a built in BEC that runs the rest of the stuff well on a 6S system.
Feb 11, 2011, 12:36 AM
Registered User
fredmdbud's Avatar
The ESC has an integrated 5A SBEC:

http://www.hobby-lobby.com/fa_18e_su...12449_prd1.htm
Feb 11, 2011, 01:01 AM
AA6JB
Bajora's Avatar
Quote:
Originally Posted by cmd
Thankyou. I'm well aware of what a BEC does. The question is - is there one in the kit? If not, as there has been no mention of one, how many amps are available to power the servos, landing gear, and receiver from the ESC when running a 6S LiPo?
I did list the kit as having an ESC and BEC, near the top of the review in the right hand column with the "snapshot" of other specifications. I did not mention the current rating of it however.

Hobby Lobby's item description of the F/A-18 on their web site mentions this in re to the ESC: ..."and an 85 amp ESC with switch mode BEC".

One of the closeup photos, included in my review above, of the product box lists the specifications and includes a bullet saying the 85 amp ESC has a 5 amp switch mode BEC. The cover of the assembly manual (lined in my review) also lists that same exact specification.
Latest blog entry: 2017 Reno Air Races
Feb 11, 2011, 07:55 AM
cmd
cmd
Registered User
cmd's Avatar
OK, you are flying the airplane and it appears to work, but 5 amps seems low when you are dropping the gear (three motors) with the flaps deployed (loading on two servos), while moving the controls, two aileron servos, plus elevator.

Quote:
Originally Posted by Bajora
I did list the kit as having an ESC and BEC, near the top of the review in the right hand column with the "snapshot" of other specifications. I did not mention the current rating of it however.

Hobby Lobby's item description of the F/A-18 on their web site mentions this in re to the ESC: ..."and an 85 amp ESC with switch mode BEC".

One of the closeup photos, included in my review above, of the product box lists the specifications and includes a bullet saying the 85 amp ESC has a 5 amp switch mode BEC. The cover of the assembly manual (lined in my review) also lists that same exact specification.
Feb 11, 2011, 08:08 AM
Landin' On The Canopy BAD
F-86FLIER4LIFE's Avatar
Quote:
Originally Posted by cmd
OK, you are flying the airplane and it appears to work, but 5 amps seems low when you are dropping the gear (three motors) with the flaps deployed (loading on two servos), while moving the controls, two aileron servos, plus elevator.
do you have flaperon set up on yours? if so then how did you fish the freaking extension through the fuselage without damaging anything?
Feb 11, 2011, 08:50 AM
AA6JB
Bajora's Avatar
Quote:
Originally Posted by cmd
OK, you are flying the airplane and it appears to work, but 5 amps seems low when you are dropping the gear (three motors) with the flaps deployed (loading on two servos), while moving the controls, two aileron servos, plus elevator.
Lots of folks, including myself, are flying the stock configuration with the stock BEC. I have hhad no problems. 5 amps worth of BEC does not seem low to me. Even with the electric retracts. Remember, these servos are all 9 gram class servos, not standard or digital servos.
Latest blog entry: 2017 Reno Air Races
Feb 11, 2011, 11:33 AM
Registered User
The BEC's don't bother me as the ESC ltself does. I've seen at least 3 do melt downs. One on the F/A-18 & a friend has had 2 go bad in two diff. Euros. The first one burned up in the air. It started a fire at our feild & if it wasn't for me & my quick legs & a fire extinguisher we would have had a fire that wouldd have made the nightly news. As it was it still burned up a good 20' across circle. If the winds were any higher it would have been bad.



I kind remember a few posts on the old Euro thread too.

His second Euro the ESC started acting like it was hitting LVC in flight after only the second flight. Got it back down & the ESC was super hot about ready to melt. The forst one did the samething right before it started leaving a nice smoke trail.

He has since put in a CC ESC. Flys great now.

The F/A-18 was Warderseeker's on Youtube. He has a new year in photos vid & one pic is of his burned up F/A-18. He said HL was taking care of it but still.

So far mine has been OK but it scares me now to think at anytime it might burn up.


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