|Feb 01, 2013, 10:00 AM|
Grumania 1/10 Eurofighter
After the demise last summer of my Red Leader Typhoon. Pilot error ending in a very toll tree . We have to cut the tree ....I was frustrated and I order one from Ilja Grum @ Grumania in Germany http://www.grumania.com/
The model is made for a small turbine , but some modellers already electrify this jet with success .
The bad news is the spar located on the front of the fan . The jet did not come with inlet . My only solution was a Schubeler HST 77 fan with the mouth . +
Ilja who is the best to get advices , answers all my questions with lots of patience and came with a great solution to fix the spar problem : A special set of formers made by this company:http://www.modellbauservice.com/
I will cut the spar and make the wing removable
The workmanship of those former are incredible...110 Euros
I will build the plane and share my modest experience until the spring for the test flight
Here what I'm using:
Power : Schubeler DS 77 DIA HST 6240-650 for 12-14 cells
ESC: CC Ice 160 for 12 and I have a COM PRO for 14 cells later
Cells : not sure yet or 12 GEN Ace 5500 mah or 12 8000 mah Nano Tech
Retract Lado 133 serie+ Edoor : main and nose
Delta: JR 3421 . Rudder : Hitec 5125. Canards and steering JR 821
Schubeler provide you with fan jig this way it's easy for the placement and construction( Thank Roger)
I buy the fan from Mike Warren @ http://www.performance-edf.biz/ fast service
Because fuselage is long Ilja cut the nose and the tip of the rudder for shipping . The nose was my first job , I cut all the opening in the fuse and give a good sending with 80 grit to remove all the PVA
Then you start with all the former . Not glue #2 yet because under this one I will instal a tray for the cells , after set up the fan. I think I will have some fun for balancing
The fuselage is well marked and you can not make any mistake.....
|Feb 01, 2013, 12:24 PM|
Joined Aug 2005
Sorry to hear about the Your Eurofighter and best of luck with the new build.
I dont want to hog the thread but I have A Red leader Composites Eurofighter.
What fan did you put in it with how many cells ? I thought this jet was a bit heavy for EDF when I got it so I was going to put a Wren 54 into it.
Could you tell what weight your Eurofighter weighed for flying?
|Feb 01, 2013, 06:26 PM|
Oh man I am glad to see this thread! I have the same jet sitting at home waiting for me to start the build! I have a Stumax SM110-52 a Dyn-E-Max and a couple Jetfan 90s but haven't decided what I will use but I am leaning towards the Stumax. My biggest challenge will be making a set of inlet ducts. If I just can't get them made, I will probably go with the Jetfans. The only other stuff I have is a set of EFlight retracts and a set of Tamjet struts. I know it sounds crazy but I plan on making it FPV capable and having a full detailed cockpit.
What struts are you going with?
Looking forward to your build!
|Feb 01, 2013, 08:10 PM|
I'm glad you are happy to see me started....
To make the intake yourself should be possible with patience . It's a long way to the fan. I will try with no duct and use the Stumax with a mouth. The problem is the spar .You don't want a spar on the front of the airflow.
The Lado retract are very robust and well made .
+ Lado sequencer for the doors and retract
I'm using Grumania struts for main and Airpower for the nose . This is solid stuff and I will take off and land on the grass field if is needed.
Tonight I "hysoled "all the front formers and tomorrow setup the steering cables and install the front retract.
Will post more pictures soon.
|Feb 02, 2013, 04:36 PM|
I laminate the T ( tank) former with carbon fibre , and I'm using a smal digital MG Savox servo instead of the big JR servo for steering saving ~ 1 once . You don't need the former I will glue the bottom only and cut the top. Later I will glue a small balsa fairing on the front of the servo.
Next front gear and door.
|Feb 03, 2013, 09:35 AM|
I was not so crazy about mounting the servo upside down and I like simple...
I cut the former and simply install the servo behind . Very solid and will be easy for servicing.
The Lado are so easy to install , I know why electric retract became so popular, and those are wort every cent. The door it's very long and "thechspy"if you did not cut the door yet , don't follow the mark. start from the intake. Length is 17 cm
|Feb 04, 2013, 12:17 AM|
Nice build! I will follow this thread close as I'm currently doing the Fei bao Eurofighter which is simular sized.
|Feb 04, 2013, 08:26 AM|
By the way, are you concerned that the gear door will not open because of the suction with no ducting installed? I had a large Rafale with a Stumax with no ducting and was considering flying it without ducting but found with the fan running, the gear doors would not open. I supposed you could cut the throttle for a few seconds to have them open.
|Feb 04, 2013, 08:51 AM|
The e door can be programmed and as you said I will cut throtle . I can also make a balsa box around the wheel if its a problem....
|Feb 04, 2013, 10:51 AM|
Did more this morning ( to cold outside -15 c + bad wind)
For the rudder I use a small Savox MG Digital . Made a small box off lamination of lite ply and 1/64 ply+ a epoxy plate and mounted the servo upside down and CA the box in place 17g with servo.
Cut the rudder and glue balsa frame and fin and rudder .
I fixed the tail former who broke during transport ....only damage the rest was 100%
Ok time for a #2 expresso
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