Thread Tools
Feb 13, 2006, 03:50 PM
Registered User
Thanks for the plans for the 48" E-Xtreme I can't
wait to start building it

Thanks,
Team3d
Last edited by Team3D; Feb 14, 2006 at 03:18 PM.
Sign up now
to remove ads between posts
Feb 13, 2006, 05:05 PM
Thread OP
No problems....love to see people "building instead of buying".

I guess an Axi would be fine on 10xGP2200 or 4s Kokam 3200.

Weight should be between 1,2-1,4kg.
Input Power 350W makes 35A at 10Volts

Just have a look here. Gerhard Schneider built a Midi-E-Xtreme

http://misi-online.de/html/flugbilde...e-xtremes.html

I you have any more question just ask here or via email
Feb 16, 2006, 04:50 PM
Thread OP
Give me more pics....

Hacker A20-20L just arrived. Unfprtunatlly theres lot of vibration in the lower rpms. Dont no the reason . Will have to send it back. Nethertheless power is good on that tiny motor.
Controller is a 18A Simprop for just 37.
Mar 27, 2006, 02:03 PM
Thread OP
Remember these colors?
Apr 01, 2006, 02:19 PM
Thread OP
95% finished

Just need to make a molded form for the cowl. Weight will be very good.

Installed the control surfaces and servos today.
Apr 08, 2006, 04:45 AM
Thread OP
Hope theres still someone reading this thread??

mold for the cowling is finished...was made of balsa layers....covered with glasfibre and painted
Apr 10, 2006, 03:01 PM
Thread OP
Some sand paper and car polish helped to get a smooth surface
Apr 10, 2006, 10:50 PM
Registered User
ssatoru's Avatar
Quote:
Originally Posted by misi
Some sand paper and car polish helped to get a smooth surface
Nice cowl! I did not know it can be done without a female plug. I have to try the technique.

Satoru
Apr 11, 2006, 01:17 PM
Thread OP
Hi Satoru

this is just the original mold...there will be a negative made of glass fibre and finally the positive made from carbon fibre.
Apr 14, 2006, 09:37 AM
Registered User
ssatoru's Avatar
Thanks. It was not that simple.

Satoru
Apr 19, 2006, 03:50 AM

CG for the Mini


Hi Misi,
I'm on the Mini E-Xtreme brandwagon Almost finished with the building of the plane, but I would need some help with the below items:
1) Where is the CG of the plane?
2) Where do you place the battery and the electronics?

Thanks for your help in advance!

justy
Apr 19, 2006, 03:23 PM
Thread OP
Hi Justy,

cool another Mini E-Xtreme. Got Pictures?

1.) For the first flight you can put the CG close to the wing joiner and you ll be on the safe safe side. Moving backwards to 1/3 of the wing chord will be good as well (83mm 3,2" from the wings leading edge) for further flights.
For 3D Hovering etc. you should move it back step by step. Should be no problem with a little too much backward CG as you have lots of control on the big control surfaces.

2.) I guess all parts will be close to the motor. ESC will probably place in the cowling. Battery on the removable gear plate or a separate balsa sheet. Receiver will be in front of the wing joiners.

But thats still things i have to figure out as well next weekend

BTW Negative mold is almost finished. Hope it gets out well. Screwed the original mold to a piece of covered plywood.
Some "UP Vorgelat" (well dont know the english word ) and epoxy+glass makes the mold.
Apr 19, 2006, 05:11 PM
Hi Misi,

Thanks for the quick answer! I will start the CG setting - as you proposed - at the wing joiner and I will slowly go backwards.
I will soon reach the covering phase which is a quite a challenge for me due to the wingtip. I think I will steal your idea to use different transparent colors on the wings to give a better orientation of the plane when flying in a sunny weather. When I am ready with the covering I will post some pictures in this forum.

justy
Apr 25, 2006, 03:47 PM
Thread OP
Ok Guys 99% finished.

Had some problems with the negative mold, so I quickly started making a new one. This time a tiled mold. Cowling came out nice (enough). Dont have time to do better at the moment.

Finished up the plane as well, Motor and battery installation. Just need a Canopy and some gear modifications

Technical Data:

Motor Hacker A20-20L
Prop 9x6 APC E
Battery Polyquest 1200 3s
Sexta Receiver
ESCr Simprop Magic Speed 18
Servos Dymond 9g Elev/Rud
Servos Ail 2x8g

Flying weight is 490g (17.28 oz) which is pretty good I guess.
Possible weight reduction approx. 2-3%

Excited to see my Non-ARF fly


Quick Reply
Message:

Thread Tools