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Member postings for Trevor

Here is a list of all the postings Trevor has made in our forums. Click on a thread name to jump to the thread.

Thread: CAA registration take-up?
16/01/2020 13:27:07

Well, at least the CAA seem to have taken some trouble to give you a full and informative reply to your enquiry rather than just a minimally-compliant FOI response. It also seems to acknowledge that we model flyers are not a source of great concern to them, which surely is a good thing.

Thread: HobbyKing covering
16/01/2020 13:19:03

Given the parlous state of HobbyKing’s stock levels, has anyone tried the Banggood covering film? The description on their site is uncharacteristically brief, not even explicitly stating that it is a Polyester-based film.

The reviews on Banggood’s own site seem positive but it would be nice to hear directly from anyone who has tried it.


Thread: Dereck Woodward Bigga Bit
09/01/2020 13:45:36

Why not use balsa for the sides, with 1/32 ply doublers on the inside. By cutting strategically placed holes in the doublers, you can get the strength where you want it while still having flexibility towards the rear.


Thread: Ripmax Phase 5e
03/01/2020 11:46:41

Yes, after a few heavy hints, I got one of these for Christmas too smiley. The overall quality is very good but on my example the covering was badly wrinkled, especially on the ailerons and flaps.

I've used Corona servos: DS-939MG in the wings, DS-238MG in the fuselage. I bought them from RC Life. I’ve ordered a motor from HobbyKing but will wait and see whether it fits before recommending it. The Corona servos though are an excellent fit.

More later,


Thread: The Gov't, CAA, BMFA & UAV legislation thread
03/01/2020 11:33:58
Posted by Dai Fledermaus on 03/01/2020 10:41:21:
Never in the field of model flying has so much been written by so many about so little.

Oh I don’t know. Maybe it’s time for another Mode1 vs. mode 2 debate, or I.c. Vs. Electric, or BEC vs. Battery. . .devil

Thread: SLEC Chipmunk build blog
31/12/2019 08:46:23

Yes, you'll be surprised at how much movement the torque rods will allow. The oleos are a good idea though, if only to reduce the 'bunny-hoppng' tendency when taxiing. On my Chipmunk (not a SLEC one), I cut a piece of foam to fit between the top of the fairing and the underside of the wing - see the last picture on this page. I've still picked up dents in the underside of the wing over the years though!


Thread: Antonov AN124 Ruslan
30/12/2019 10:30:01

Sounds promising Simon. Did you notice it nearly ingested a blanket there!?


Thread: wont start
22/12/2019 09:19:14

Is there a throttle lock switch somewhere which is inhibiting the throttle channel? As Denis says, the servo monitor screen is your friend!

Thread: great service
25/11/2019 17:02:21

Reminds me of the time I ordered some wheels from Puffin Models. John Emms was quickly on the phone to check that the order was right because I’d ordered one large wheel and two small ones. As it happens they were for a motor glider so all was well but like you, I appreciated his taking the trouble to check.


Thread: Revolver Pusher type Autogyro trainer
24/11/2019 17:11:00

With a bit more motor offset, the rudder trim is reduced but not quite eliminated. I didn’t notice any throttle/yaw coupling and circuits both ways are now okay. Just as well really since today’s wind direction necessitated taking off straight into a right hand circuit. In spite of the gloomy conditions, clubmate Mike managed a few photos:

They’re a bit blurry but do show off the coning angle rather well.



Edited By Trevor on 24/11/2019 17:12:11

Thread: Any clock experts here?
21/11/2019 15:08:51

Are you sure it hasn’t got a striking train that has been silenced? If so, you should still be able to hear the striking train running on the hour for a few seconds.

Thread: Revolver Pusher type Autogyro trainer
20/11/2019 19:01:54

Thanks Graham. I’ll offset the motor as much as possible without it looking silly and then take it from there. I do have the facility to program a throttle to rudder mix as you describe (Jeti radio) so will bear that in mind.


19/11/2019 09:44:22

Thanks for the responses. I had read about the suspension method of adjusting the thrust line but frankly didn't fancy the prospect and had enough confidence in Rich's recommended starting point to do the initial flight tests and hopefully fine tune the setup from there.

Rich, thanks for confirming that I need more motor offset rather than less. The motor is fitted with Malcolm's adjustable motor mount so I can easily move it a bit, although the motor mount is already close to the edge of the bulkhead. I didn't notice any significant change in yaw trim with power so I don't think it can be too far out.

With regard to the rudder trim, the irony is that when I first fitted the tail surfaces to the boom they were off square and I spent a fair bit of time fiddling around to square everything up. Had I not bothered, there would have been a bit of offset built into the fins from the outset! Anyway, I'll keep practising the right hand circuits.



17/11/2019 19:58:45

Okay, after another couple of flights today, right hand circuits are getting quite a bit better, albeit still not as comfortable as left handers. I have though ended up with quite a bit of left rudder trim and, since the nose still tends to drop a bit in right hand turns, it probably needs a bit more left trim yet.

139dbb7c-4967-4c95-94e1-20ea337252b7.jpeg I’d appreciate any advice on adjusting the motor offset to reduce the amount of trim needed - I’m guessing that it needs more offset, but would like to be sure!



Thread: How many flyable aircraft do you have ?
07/11/2019 08:46:51

36, not counting the indoor models. I try to operate two rules now:

i) One in, one out.

ii) Anything not flown in the year has its future called into question.

So far, I am doing better agains the second rule than the first: 35 out of the 36 have flown (as have all the indoor models) but there have been only two disposals against four additions.

I am getting more creative on storage solutions though!


Thread: speed 400 x 3!
29/10/2019 08:35:38

P.S. Having just re-read that old article - make sure you read it all the way down to the P.S.!

Good luck with the project.

29/10/2019 08:21:42

There's a review of this on my website:

Junkers 52 Review

I'm happy to try to answer any other questions but it was 24 years ago and my memory isn't what it was!


Thread: Revolver Pusher type Autogyro trainer
28/10/2019 16:38:25

Okay, this morning saw the second foray with the Revolver. With the battery re-located rearwards by a couple of inches the hang angle was reduced from 18 to 15 degrees. No other changes were made. The full flight report is in my updated online diary (scroll down to October entry): **LINK**

Having just flown the Panther and the Revolver back to back, one clubmate remarked that, although the Revolver seemed to fly very nicely, it lacked the (to him pleasing) 'thwack, thwack' from the rotors. I must confess that the auditory side of things wasn't really commanding much of my limited mental capacity at the time so I can't corroborate this impression but can only imagine that, since the blades are very similar on the two models with the Revolver being a pound and a half lighter, the blades just aren't having to work so hard. I did get the impression that the head seemed to be a little 'lazy' - maybe I should put the RPM sensor on it some time and try to confirm this. If this is an indication that the blades have lift to spare, maybe there would be some merit in trying some thin shims after all, with a view to getting the head speed up a bit and aiding the initial spin up?

Anyway, meanwhile, congratulations to the designer chappy on another winner!



Thread: NEW POLL - do you use a throttle kill switch?
26/10/2019 15:21:17

Before the days of programmable transmitters I used to advise trainees to lock the throttle off by means of a rubber band attached to the Tx handle and pulled down behind the Tx, then looped over the stick. This may still be an option for anyone unsure about the programming of their transmitter.

26/10/2019 10:35:51

Yep, every time. The Tx won’t fire up unless the throttle is locked off. And by using it on every model it becomes part of the routine to lock the throttle off after flight.

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