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Search: Posts Made By: ofremmi
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10-21-2014, 10:43 AM
Replies: 52
Views: 7,231
Posted By ofremmi

A couple of years ago I tested the max speed with...

A couple of years ago I tested the max speed with the GPS telemetry module. The plane was not one of the most modern and slow one, and it was powered by a Hacker C50-14XL with a APC 21*14. The...
10-13-2014, 01:10 PM
Replies: 52
Views: 7,231
Posted By ofremmi

A few weeks ago, out of curiosity I made a few...

A few weeks ago, out of curiosity I made a few flights (P15&F15) with my Arixtra+, carrying a Graupner GPS/variometer telemetry module. I'm not so sure of the accuracy of the logged airspeed,...
07-16-2013, 10:36 PM
Replies: 139
Views: 56,500
Posted By ofremmi

RE: ARIXTRA, new french F3A design

The one from last year was build from a basic-kit, ie. I had to sheet the foam-cores myself, cut out the control surfaces etc. The good thing about doing it myself is that I can hand-pick the wood...
07-15-2013, 11:33 AM
Replies: 139
Views: 56,500
Posted By ofremmi

RE: ARIXTRA, new french F3A design

Guy'sMy second Arixtra is completed and in use. It came out a little heavier than the first (I did not Select the Wood and sheet the cores myself), but still below the 5kg limit with Hyperion CX 5Ah...
07-15-2012, 09:37 AM
Replies: 5
Views: 1,187
Posted By ofremmi

RE: Sources for Pattern Airplanes/kits

I have listed a few on my WEB : http://www.ofremmi.info/F3A/Models/Models_for_F3A.htm
07-10-2012, 12:52 PM
Replies: 139
Views: 56,500
Posted By ofremmi

RE: ARIXTRA, new french F3A design

Then I'm finally finished with mine, 10 flights so far and everything is just fine. I still need some more flights with fine-tuning and getting used to the different responce, but I can for sure say...
05-30-2012, 10:36 PM
Replies: 139
Views: 56,500
Posted By ofremmi

RE: ARIXTRA, new french F3A design

Frederic
I'm currently painting mine and looking forward to complete it. Where is the CG of yours, I just need a good starting point.
Ola
10-16-2011, 12:37 PM
Replies: 40
Views: 7,004
Posted By ofremmi

Composite wings, any advantage ?

Hi all
I want to state the following, and my question is; do you agree :
Compostite wings for F3A models is only about finish and low effort to get model ready for use. I have yet to see any kit...
01-25-2011, 09:27 AM
Replies: 28
Views: 4,711
Posted By ofremmi

RE: Telemetry in F3A

Hi there
The fact is that 'normal' telemetry not involving any performance enhancements are allowed. Please look up the 'ABR volume' of the sporting-code downloadable from...
09-20-2010, 09:16 AM
Replies: 142
Views: 33,159
Posted By ofremmi

RE: European Championship In AUSTRIA

Dear all
For those interrested in the technical aspect, the organizers has posted very complete records of what type of equipment used, measurements of airplane weight, dimensjons, battery weights,...
09-20-2009, 04:00 PM
Replies: 36
Views: 6,205
Posted By ofremmi

RE: OS-120AX cookbook

Jason
I had one in an Epsilon a couple of years back, with stock muffler, OS-F and 15/15 fuel. Initially I ran it with APC16x8, but then I felt the mid-range to be 'weird'. I switched to 16x10...
04-11-2009, 09:46 AM
Replies: 1
Views: 707
Posted By ofremmi

RE: OS 140RX EFI Bearing

No, the bearing for the 140EFI is a sealed and pre-greased one. It is an excellent upgrade for a std. 140RX or any other engine that uses the same dimension bearing. After assembly you will find...
04-08-2009, 03:01 PM
Replies: 13
Views: 1,844
Posted By ofremmi

RE: Spring is here

More from the land of vikings
I am lucky enough to have an asfalt home-field, but we still had high snowbanks last week.
Picture 1 : showeling snow to try to find the apex-lines of the...
03-26-2009, 02:47 AM
Replies: 30
Views: 7,224
Posted By ofremmi

RE: Commercially manufactured arming plug?

Hi
I learnt about one device the other day, from Emcotec. It contains spark suppression and the on/off function is by means of a magnet. Take a look here...
02-09-2009, 12:28 PM
Replies: 14
Views: 1,634
Posted By ofremmi

RE: Servo opinion

Hi there
This is exactly the question I have asked myself. To try to unmystify this I have made some measurements of servo performance and tried to match it with servo current consumption measured...
12-21-2008, 04:47 PM
Replies: 11
Views: 2,240
Posted By ofremmi

RE: Servo requirement

Stek79
The test-rig I have made is not really sutable for the smallest servos. It seems to be Ok for mini's, like down to 20g size. For the smallest ones the mass of the moving things like axles,...
12-08-2008, 04:46 PM
Replies: 30
Views: 3,930
Posted By ofremmi

RE: weight for film

Rune
I check'ed my log from when I made a foam-wing for my C-ARF Integral last year. Monocote per wing-half (remember plug-in's) is 43g.
Ola
12-08-2008, 12:32 PM
Replies: 11
Views: 2,240
Posted By ofremmi

RE: Servo requirement

Hi
No-no, it's not THAT easy. What I state is that this is a more realistic value for the load actually applied to the servo. Then you must find a servo that is able to move reasonably fast with...
12-01-2008, 02:51 PM
Replies: 11
Views: 2,240
Posted By ofremmi

RE: Servo requirement

Hi agai
I do not have any modern Futaba servo's, but a friend of mine come over with a couple the other night. Apart from that I have also been able to test several others that I had lying around...
11-28-2008, 01:06 PM
Replies: 11
Views: 2,240
Posted By ofremmi

RE: Servo requirement

f3a05 : Very good comment. Thes afternoon I have made a static test to verify that the two systems measure compareble currents. The max sample rate of 10Hz (for servo current logging I would like...
11-27-2008, 02:33 PM
Replies: 11
Views: 2,240
Posted By ofremmi

Servo requirement

Boy's
This autumn I have made some tests to try to determine the amount of work the servo's in our planes are actually doing. The reason for this is to get some facts behind the servo-selection...
10-02-2008, 04:21 PM
Replies: 25
Views: 3,885
Posted By ofremmi

RE: Accident: started OS-200 at full throttle

Well, if handled witout thinking, electrics are just as dangerous. I observe that for many pilots the regulator is armed immediately when they connect the battery, in my opinion this is a rather...
09-05-2008, 07:09 AM
Replies: 207
Views: 42,657
Posted By ofremmi

RE: European Championship 2008 - Brescia Italy

Hi
They don't fold, it's just that when using the Plettenberg 30-10 evo mounted in the spnner you must use folding-type of propellor blades. Se the central picture two posts above.
09-05-2008, 05:01 AM
Replies: 39
Views: 3,979
Posted By ofremmi

RE: Trim Question - Needing left rudder on downline at idle

Sir's
It might be that I'm sloppy with my set-ups, but why dont you just trim the rudder for a perfect downline, and then adjust the thrust-line to achieve straigh lines going up ? The issue that...
09-02-2008, 04:45 PM
Replies: 207
Views: 42,657
Posted By ofremmi

RE: European Championship 2008 - Brescia Italy

Hi there
I have just updated my WEB-pages with something from the EC, the most interresting part may be the equipment list.
Direct link to EC-08 :...
Showing results 1 to 25 of 111
 


 
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