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Geoff Bradley

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Posts posted by Geoff Bradley

    Problems with TX16S and Spektrum receivers

    in Other Radio Brands

    Posted · Edited by Geoff Bradley

    Thanks Cassandra that may work but I’ve also got several planes with AR6210 receivers that don’t do preset failsafe.

     
    Frank …Brilliant….you have solved my problem. I’ve just checked the outputs from the receiver and they are AETR. I don’t know if what I’ve done is the correct method but I’ve changed the Channel  numbers in the Mixes menu to suite and all is working well. Thank a million ?

    • Like 1

    Problems with TX16S and Spektrum receivers

    in Other Radio Brands

    Posted

    I’ve had my TX16S for about 6 months and have  been happily flying my planes with FrSky receivers. So last week I decided to set up the transmitter for one of my planes that had a Spektrum receiver. All went well until I came to bind to the AR8000 receiver. The EnErG Pro esc …gave out constant beeps  indicating that it was receiving a throttle signal …even though the throttle was at minimum. After a lot of experimenting with the problem I discovered that it would bind successfully with the throttle plugged into the aileron connection of the receiver and the aileron servo connected to the Gear connection of the receiver. I thought it unusual but all the surfaces were working so I would be ok to fly.
    Then I tried the failsafe…… I put the throttle on low revs and turned off the transmitter …..the throttle stayed the same. I tried the same excercise with the surfaces and they also stayed the same.

    I’ve since updated the multi protocol firmware and tried two other Spektrum receivers with the same results.

    Can anyone please advise me what to try next ?

    Ferrite rings with Skyrc charger !

    in Batteries and Chargers

    Posted

    I've just bought a Skyrc D100 charger and am confused about the 2 ferrite rings and little plastic clips ! included in the box. I know very little about ferrite rings but would have thought one would have be attached to the mains supply cable if required and perhaps the other to the 12v supply....as for the two plastic clip ! I'm scratching my head.

    Can anyone help....I should add that there is no mention of either of them in the handbook.

    Prangster Problem!

    in Beginners

    Posted

    Aduncan.......I've noticed that the new replacement cowl has an extension to go aver the wing band pegs.....I'll make a couple and see if it makes a difference.

    JVR.....I'm sure that I'm set up as you suggest but I'll double check.

    Thanks for your advice chaps.

    Prangster Problem!

    in Beginners

    Posted

    Well....I set the plane up with a C of G at 60mm......it still wanted to nose up !

    So I tried 55 mm and it still had a tendency to nose up !

    A fellow flyer suggested packing the wings at the rear to give a negative incidence angle...so a 10mm packing was inserted and it flew well.

    I removed a lot of the weight up front and flew again and it flew a treat.

    I'm going to play around with the packing and try to get it to fly without all the extra up font weight.

    It's not set up as the instruction manual but it flies a treat so the packing will stay put !

    Edited By Geoff Bradley on 23/03/2015 20:31:32

    Prangster Problem!

    in Beginners

    Posted

    Well....I set the plane up with a C of G at 60mm......it still wanted to nose up !

    So I tried 55 mm and it still had a tendency to nose up !

    A fellow flyer suggested packing the wings at the rear to give a negative incidence angle...so a 10mm packing was inserted and it flew well.

    I removed a lot of the weight up front and flew again and it flew a treat.

    I'm going to play around with the packing and try to get it to fly without all the extra up font weight.

    It's not set up as the instruction manual but it flies a treat so the packing will stay put !

    Prangster Problem!

    in Beginners

    Posted

    Thanks again for all your advice.

    JVR.....I've also put a foam block to position the wing so I'm happy with that....once she's flying 'safely' I'll try the Thr - ele mix.

    Paul...I'm happy that the wing is seating...6 strong bands.

    Cuban8....I'm sure the incidence is ok..I projected a line parallel to the tail along the side of the fus and compared it to a chord line on the end wing section and they appear parallel. There is abt 5deg of downthrust.

    Chuck Planes....I've measured the plane and entered the info to the C of G calculator...Using a Static Margin of 15% it says C of G should be 63mm

    So..I'll set the C of G at 60 mm and give it another try.

    Off on my holls this week for a couple of weeks so I'll post the result when I return.

    Prangster Problem!

    in Beginners

    Posted

    Thanks for the advice......I was hoping someone had the same problem !

    I've checked the angle of incidence and it seems to be zero so I'll take some measurements tomorrow and use the calculator to work out the C of G. If that gives the same result as the handbook states I'll give it a try at 25 % and see how it goes.

    Thanks again for all your help......fingers crossed ....

    Prangster Problem!

    in Beginners

    Posted

    It's a second hand job but is in good condition and the wing incidence is around 2deg.

    It was a nightmare to control in the glide and the down thrust is around 5 deg that's why I wondered if the instructions about C of G may be incorrect !

    Prangster Problem!

    in Beginners

    Posted

    I've recently bought a JP Prangster for a Winter Hack and it noses up very severely. Everything is set up as per the handbook with the C of G at 70 mm which is as recommended for a beginner. Has anyone had experience of a similar problem ?

    I have noticed that the wing chord is not as stated in the handbook.....it states 52 inch span and 520 sq inch area which should give a chord of 10 inch but it actually measures 9.25 inches ! This would give a C of G of 59 mm at 25% of chord ! I considered increasing the down thrust but it already appears to be at around 5deg.

    Any held will be gratefully accepted.

    A Test Questions

    in Beginners

    Posted

    Thanks for those chaps.....Ernie you big tease !

    I understand where you are coming from Budgie but can't fully agree. Whenever I have taken an exam the syllabus is given for that particular exam. The handbook is not a syllabus and contains lots of information that, as I understand it, is not pertinent to basic A test.

    I asked for questions to give me assurance that I'd taken in what I'd read and from your questions I'm quite happy.....thanks very much.

    A Test Questions

    in Beginners

    Posted

    I'm about to take the A Test and have read the BMFA Handbook with great care. However, the information that I think is required to be known is spread all over the place. So...It would be brilliant if people who have taken the test would post the questions they had to answer....pretty please !

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