Receiver inside crome covered plane
10-08-2010 | 02:50 PM
#27
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From: Cape L\'\'\'\'\'\'\'\'Agulhas, SOUTH AFRICA
RE: Receiver inside crome covered plane
A couple of years ago I bought aJapaneseILSAN Extra 300L ARTF. Very nice kit, but when I flew it, it would at times be uncontrollable for a few seconds and after frantically moving the Tx sticks, it will regain control and flew normally. After a number of these adrenalinencounters I went back to the hobby shop for advice. They told me that a number of those ILSAN kits had crashed - the cause being that the planes were factory covered in some "printedmetallic" foil, and that the 35 MHz aerial needs to be routed outside the fuse.
This did not solve theproblem and I decided to re-cover the plane in plain Oracover. It did not solve the problem either.
Thekit had a pre-slotted hole for the 2 aileron servos to sit side by side in the centre ofthe wing. The elevator and rudder servo slots were situated underneaththe "cockpit floor" above the 2 aileron servos (upside down above them). On close scrunity I discovered by chance that when Ifit the wing to the fuselage,the aileron,elevator and rudderservohorns lightly interlockedwhen the plane wasin abanking climb. They interlocked and the frantic movement of the sticks unjammed them again.
It was easier to move the elevator andrudder servos forward 40mmso they are not above the aileron servos anymore and the problem was solved.
I was lucky - in this case, with new JR 35 MHz PCM radio gear,it was not the sticky"metallic type" foil covering causing the problem - but the kit manufacturer that situated the servo positions wrong.This was my experience with "radio interference".
A few months ago I build a Pizza Box Flyer - same thing - it will fly nicely and all of a sudden make uncontrollable loops and turns and then regain control again. I tracedthe problem to a brand newswitch harness power lead to the receiver that did not made good contact in the switch-I replaced it and problem was solved.
So I agree with NM2Kthat there can be a number ofcauses.
I'm planningto do some 30 - 100m range tests with 35MHz and 2.4 GHz gearin about 3 weeks time - and do1 test with aluminium foil as well -aka Mythbusters style - just to see whathappens. Until then
This did not solve theproblem and I decided to re-cover the plane in plain Oracover. It did not solve the problem either.
Thekit had a pre-slotted hole for the 2 aileron servos to sit side by side in the centre ofthe wing. The elevator and rudder servo slots were situated underneaththe "cockpit floor" above the 2 aileron servos (upside down above them). On close scrunity I discovered by chance that when Ifit the wing to the fuselage,the aileron,elevator and rudderservohorns lightly interlockedwhen the plane wasin abanking climb. They interlocked and the frantic movement of the sticks unjammed them again.
It was easier to move the elevator andrudder servos forward 40mmso they are not above the aileron servos anymore and the problem was solved.
I was lucky - in this case, with new JR 35 MHz PCM radio gear,it was not the sticky"metallic type" foil covering causing the problem - but the kit manufacturer that situated the servo positions wrong.This was my experience with "radio interference".
A few months ago I build a Pizza Box Flyer - same thing - it will fly nicely and all of a sudden make uncontrollable loops and turns and then regain control again. I tracedthe problem to a brand newswitch harness power lead to the receiver that did not made good contact in the switch-I replaced it and problem was solved.
So I agree with NM2Kthat there can be a number ofcauses.
I'm planningto do some 30 - 100m range tests with 35MHz and 2.4 GHz gearin about 3 weeks time - and do1 test with aluminium foil as well -aka Mythbusters style - just to see whathappens. Until then
10-08-2010 | 03:28 PM
#28
Senior Member
My Feedback: (14)
RE: Receiver inside crome covered plane
ORIGINAL: Bundubasher
A couple of years ago I bought a Japanese ILSAN Extra 300L ARTF. Very nice kit, but when I flew it, it would at times be uncontrollable for a few seconds and after frantically moving the Tx sticks, it will regain control and flew normally. After a number of these adrenalin encounters I went back to the hobby shop for advice. They told me that a number of those ILSAN kits had crashed - the cause being that the planes were factory covered in some ''printed metallic'' foil, and that the 35 MHz aerial needs to be routed outside the fuse.
This did not solve the problem and I decided to re-cover the plane in plain Oracover. It did not solve the problem either.
The kit had a pre-slotted hole for the 2 aileron servos to sit side by side in the centre of the wing. The elevator and rudder servo slots were situated underneath the ''cockpit floor'' above the 2 aileron servos (upside down above them). On close scrunity I discovered by chance that when I fit the wing to the fuselage, the aileron, elevator and rudder servo horns lightly interlocked when the plane was in a banking climb. They interlocked and the frantic movement of the sticks unjammed them again.
It was easier to move the elevator and rudder servos forward 40mm so they are not above the aileron servos anymore and the problem was solved.
I was lucky - in this case, with new JR 35 MHz PCM radio gear, it was not the sticky ''metallic type'' foil covering causing the problem - but the kit manufacturer that situated the servo positions wrong. This was my experience with ''radio interference''.
A few months ago I build a Pizza Box Flyer - same thing - it will fly nicely and all of a sudden make uncontrollable loops and turns and then regain control again. I traced the problem to a brand new switch harness power lead to the receiver that did not made good contact in the switch - I replaced it and problem was solved.
So I agree with NM2K that there can be a number of causes.
I'm planning to do some 30 - 100m range tests with 35MHz and 2.4 GHz gear in about 3 weeks time - and do 1 test with aluminium foil as well - aka Mythbusters style - just to see what happens. Until then
A couple of years ago I bought a Japanese ILSAN Extra 300L ARTF. Very nice kit, but when I flew it, it would at times be uncontrollable for a few seconds and after frantically moving the Tx sticks, it will regain control and flew normally. After a number of these adrenalin encounters I went back to the hobby shop for advice. They told me that a number of those ILSAN kits had crashed - the cause being that the planes were factory covered in some ''printed metallic'' foil, and that the 35 MHz aerial needs to be routed outside the fuse.
This did not solve the problem and I decided to re-cover the plane in plain Oracover. It did not solve the problem either.
The kit had a pre-slotted hole for the 2 aileron servos to sit side by side in the centre of the wing. The elevator and rudder servo slots were situated underneath the ''cockpit floor'' above the 2 aileron servos (upside down above them). On close scrunity I discovered by chance that when I fit the wing to the fuselage, the aileron, elevator and rudder servo horns lightly interlocked when the plane was in a banking climb. They interlocked and the frantic movement of the sticks unjammed them again.
It was easier to move the elevator and rudder servos forward 40mm so they are not above the aileron servos anymore and the problem was solved.
I was lucky - in this case, with new JR 35 MHz PCM radio gear, it was not the sticky ''metallic type'' foil covering causing the problem - but the kit manufacturer that situated the servo positions wrong. This was my experience with ''radio interference''.
A few months ago I build a Pizza Box Flyer - same thing - it will fly nicely and all of a sudden make uncontrollable loops and turns and then regain control again. I traced the problem to a brand new switch harness power lead to the receiver that did not made good contact in the switch - I replaced it and problem was solved.
So I agree with NM2K that there can be a number of causes.
I'm planning to do some 30 - 100m range tests with 35MHz and 2.4 GHz gear in about 3 weeks time - and do 1 test with aluminium foil as well - aka Mythbusters style - just to see what happens. Until then
That was a good post. We should not be ready to blame just one thing, such as metal foil, metalized polyester, etc.
Does anyone remember the Bridi Dirty Birdy 40? I've seen a few of those crash because of the lack of clearance between the servos mounted inside of the fuselage interfering with the single aileron servo that was driving bent wire torque rods. There were many other kits out back then that could suffer the same problems.
Ed Cregger
10-10-2010 | 10:37 PM
#29
Banned
RE: Receiver inside crome covered plane
ORIGINAL: Calmo2
Hello; I was wondering about having a receiver inside a Top Flite P-47 that I was going to cover with chrome Monokote. A few years ago I remember reading on RC Univerce some where that someone said that if you cover your plane with chrome monokote you should route the antenna outside the plane as son as you can because the monokote will interferer with the radio reception! I have a 2.4 GHz radio and the receiver has two 6 inch long antennas. Does anyone know if I will have any problems with the chrome Monokote interfering with radio reception? I would appreciate any comments on this. Thanks George.
Hello; I was wondering about having a receiver inside a Top Flite P-47 that I was going to cover with chrome Monokote. A few years ago I remember reading on RC Univerce some where that someone said that if you cover your plane with chrome monokote you should route the antenna outside the plane as son as you can because the monokote will interferer with the radio reception! I have a 2.4 GHz radio and the receiver has two 6 inch long antennas. Does anyone know if I will have any problems with the chrome Monokote interfering with radio reception? I would appreciate any comments on this. Thanks George.
We will probably not get a test result with the antenna inside a chrome monokote.wrapping.
I would gladly make such a test if I had some of that covering material.
I do not plan to spend the cost here $20.00 or $25.00 for a roll of this monokote.
The only suggestion Ihave would be to go ahead and cover you model and then make some range tests on the ground. You should be able to find if you are forced to install such that the antenna(s) have to be outside and install them accordingly.
I wish I could be of better help.
Zor
10-11-2010 | 05:46 AM
#30
Senior Member
My Feedback: (14)
RE: Receiver inside crome covered plane
I have been saving a roll or two of chrome Monokote for a while now. I had plans on using it on a Holy Smoke Delta wing model, but no plans of keeping the antenna(s) inside of the wing. I was hoping to find an OS .46 VF in NIB condition to power said delta, but there are much more powerful engines available out there today. Maybe a Jett BSE .50 would serve the purpose well...
Ed Cregger
Ed Cregger
10-13-2010 | 03:49 PM
#31
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Joined: Sep 2002
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From: Fernie,
BC, CANADA
RE: Receiver inside crome covered plane
Thanks for all the replies! Some of them I will admit was a little over my head but I still appreciate the time you guys took to reply. I think I will cover it with either chrome monokote or ultracote and then use the power down method of ground checking with a friend watch to see if there is any interference. Again thanks for all the replies and if someone out there does a test about this subject please be sure and let us know how it turned out. George.
02-19-2023 | 03:23 PM
#32
Actual Test
This thread has lots of thoughtful,varied opinions. But who is right? Time for some hard facts from actual flight tests today
I enclosed my Futaba 617 receiver in 3 layers of Ultracoat chrome Including both antennas Like Monocoat chrome its plastic (mylar) not actusl metal . Six flights including aerobatics and long distance
no problems-- not a glitch
here are the after and before pics Parkzone 109
I enclosed my Futaba 617 receiver in 3 layers of Ultracoat chrome Including both antennas Like Monocoat chrome its plastic (mylar) not actusl metal . Six flights including aerobatics and long distance
no problems-- not a glitch
here are the after and before pics Parkzone 109
