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Member postings for Chris Walby

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

Thread: When it's a bit too windy!
07/10/2019 07:13:52

Well done and top marks for effort....it will never be too windy, with the right model wink

Thread: Ailerons extending to wingtip
05/10/2019 07:52:04

Come on chaps no guessing and lets stick to the OP

Thanks for all the advice its been very helpful and on that basis plus there seems to be very few models with this configuration I will opt for solid wing tips. Its not so much avoiding damage as if I touch the wing tip on the ground I think the result will be very messy if not terminal.

A solid wingtip might just help a little bit with air flow over the tip and I though the aileron length was short compared to the adjacent flap. I'll move the aileron up to rib 26 which should compensate for the loss of aileron area. I don't think Kurt Tank would be too upset (have I let slip) as the mark went through a few variations in its development.

I'll do a build log in due course, but for the time being I have more questions than answers at the planning stage.

Thanks for everyone's input.

04/10/2019 21:58:15

Thanks guys

wingtip.jpg

Should I stick as is or make the tip a complete block (LE to TE)?

04/10/2019 18:34:19

Thanks Tim, I was wondering more what happens as it approaches stall.

The ones I was looking at are only the last 1/3 of the wing although quite wide and as a warbird I would not expect to have much deflection. I was looking through other warbird models and can't see any with this configuration (standing ready to be corrected!).

Cheers for the reply.

04/10/2019 17:43:42

Looking at a set of plans and it got me thinking..

For warbirds and generally other models is there any specific reason for the ailerons not to extend to wing tip e.g. the aileron forms part of the wing tip?

How does a wing tip aileron type wing perform close to stall or is there no difference?

All views welcomed

Thread: TN Concorde
04/10/2019 11:58:14

Alan,

Watching with interest and BIG thanks for the nose wheel steering servo mod...I have been scratching my head trying to work out how to do it with wires and this or something like it might work for me!

IMHO just make sure to have enough thrust from your setup as TN's did not appear to be a "slow" flyer.

Thread: Guess the fault
04/10/2019 11:51:08

Thanks for the info, I am newish to the hobby so use lipos and UBEC's for RX power. IMHO with digital servos I am not sure these RX packs are up to the job.

I was discussing dual supplies with a UK supplier of batteries, UBEC's ESC's and motors and for the model I had the recommendations was a 3S2200 lipo 20A UBEC as it has the capacity to maintain the RX even if a servo failed (burn the servo out).

Another dual supply UBEC I have discharges both batteries at the same rate, be interesting to see how the battery with the faulty cell would preform. I think you would only find it had a fault when recharging it as it have a different recharge Ah value.

Does anyone do a load test on RX packs as a maintenance check

Thread: Better builder than pilot
01/10/2019 12:55:02

I agree with Cuban8, Flying circuits is not the issue, taking off is normally not too bad (although full rates and no expo on someone else's model was unpleasant).

Its the landings that get me. Trying to get a feel of how slow it will fly and what its about to do (pleasant or unpleasant) with out the benefit of high and speed for recovery just adds to the pressure!

IMHO, The giro settings for one model will not translate to another especially if they are quite different in design + if it runs out of airspeed it will fall out of the sky (controlled or uncontrolled).

My Renaissance at point of stall will very nearly descend harrier like (into a slight head wind) with no tendency to drop a wing so recommended if you want something without vices.

Thread: Who wants to share a new Flair Baronette build?
28/09/2019 20:33:35

Sorry to hear of the incident.

So why do you think it pre-impact with full down elevator? If you just lost power (battery connection) then all of the controls would stay put (last position). If you were doing a bunt then yes full down or it moved on impact.

If the elevator servo failed it would have dived, but the motor would still be controllable, where as if the RX lost power you would have no control and hear/see the prop/motor go quite.

INHO is important to try and find the cause, would not be good to carry out the repair, fix what you think was the problem only to find out it was something else.

Good luck with the rebuild and please keep us posted, all the best.

Thread: indestructible slow flyer....
28/09/2019 20:21:24

Paul,

I have only been in the hobby for about 6 years and I would say that modern high wing ARTF trainers like the Riot/Kingfsher seem to be the preferred route. They fly quite slow, are easy to see and being foam are quite repairable. If not repairable then new parts are fairly easy to obtain.

This size model typically run off a 3S2200 battery which are cheap and give about 5 minutes flight time, normally this is enough as longer is harder to keep the concentration going. The big bonus is that transmitters can be buddy connected and your instructor can "take control" so as to avoid the ground!

IMHO, find a local club, see if they have instructors willing to assist and see what model/TX they suggest/can be buddy leaded.

Have a look on the forum for "Mass build" this years model (first year I have built one) flies really well despite my lack of building experience and there are lots of people will to help if you get stuck.

Other kit manufacturers are Tony Nijhuis, Cambrian and Cambria models.

If its indestructible, then I fly a 4-max Yeti delta, low cost and all of the important bits are as far away from the point as impact as possible!

Main thing...just keep asking questions and all the best.

Thread: A newbie trying to save some money
27/09/2019 09:19:17

.... do people have a thing against mode 3 and 4? Can and does anyone fly these modes?

Thread: TN Concorde
26/09/2019 19:02:24

I did see Tony fly it at the RCM&E fly-in and it looked quite stable and was okay on/off the grass where some foam EDF's would struggle.

If you don't mind mass production buy a HK Vampire along with the rest, but if you want something different then build it yourself.

Other designers have packed up as demand is too low to even produce established kits (even with modellers putting their names on the pre-order list).

You could have gone cheap with the gear, but then its a lot of time invested in the airframe only to find it struggles to fly or the U/C disintegrates on its first landing.

Its not on my list, but that won't stop me following your build log and giving you credit for supporting UK designer/suppliers.

Fortunately we are all different and that's what makes it interesting.

Thread: A newbie trying to save some money
26/09/2019 13:20:45

Totally agree with KC, I bought what I though were a couple good models. One turned out to be not even worth the cheap components fitted and fire wood, the other had been maiden with a C of G nearer the TE than the LE! 280g of lead sorted that.

Buy nothing yet, in short visit a couple of clubs, talk to the instructors and see what they advise most likely a foam ARTF and a tube of UHU por would be a good start.

Riot/Kingfisher running 3S2200 lipo with a TX that the instructor can buddy with (as long as the TX can buddy I would spend any more). Once flying you may chose to ditch the RX/TX combo you are running and go for something else for whatever reason.

Good luck and all the best.

PS once flying you could always do a mass build if you fancy balsa bashing, loads of forum help and your own built model at the end!

Thread: Best Heating Option For Your Hobby Shed
23/09/2019 21:44:33

.

Edited By Chris Walby on 23/09/2019 21:47:36

Thread: Thank You SLEC great service!
21/09/2019 07:20:12

I would like to relate my recent experiences with sorting out a wood pack, canopy and materials.

  • Email correspondence was excellent with fast and knowledgeable replies
  • Very useful discussions with Chris regarding drawings, rescaling and wood selection
  • Having never made a canopy plug, supply of wood, advice and phone help. Finishing touches by Roy

Its worth the hour and twenty minute drive to see them and get things sorted. For example my canopy plug was dropped off last Friday, the first canopy for approval arrived Monday. A couple of additions by me and the finished article arrived on Thursday. Wow

And Inwoods is on the way back...

Thread: Ageing lipos!
18/09/2019 16:27:13

I pensioned off an old and slightly puffy lipo for starter duty, only problem was when I came to recharge it (not balance, but C1) the lipo puffed up and then vented!

I would be inclined to dispose of them at end of life and be very careful of using and especially recharging lipos that no longer perform well.

Thread: Repair of a Hanger 9 P-51 Mustang.
17/09/2019 07:07:23

Paul,

Please keep posting as this sort of thing is always helpful to others that don't nail that landing every time...or hardly ever!

Thread: Laser Appreciation Society
09/09/2019 08:53:07

Club open day yesterday, wing was bumpy in the morning, but ended up dead still late afternoon.

Three flights with the Acrowot & Dual Ace and one with the Mosquito, all Laser 70 and not a beat missed.

5 lasers.jpg

PS apologies for the electric A10 for sneaking into the photo!

Thread: Thinking aloud about Spits...
08/09/2019 07:47:31

Slightly off topic to the Spit, but I think its relevant. IMHO There are manufacturers that produce smallish foam park flying models that have wing profiles designed to be very well behaved and not exhibit the normal tendencies.

These are great models as it allows people with less experience to fly them more than once and move on from the "trainer". The problem is that as Martin has pointed out if you revert to poor landing technique with a less forgiving version it will bit hard.

Its a bit like the driving test, so much of learning is geared towards passing the test. Once you pass your test then the learning really begins. My advise is to fly as many different models as you can (+ different manufactures) some will fly well and some not, but you will be learning all the time.

Sometimes the challenge of flying a poorer behaved model is more rewarding than one that is very benign....as long as its not in the repair shop after every landing! I do have one current model that is proving very tricky and just wish we could crack the landing set up.

Did exactly as Martin described with a model which I can no longer obtain spare wings, so I contacted a chap that could make wings and he asked which wing profile I wanted as he had 5 different variants (from different designers) for the same aircraft type.

Thread: YT International anyone had recent experiance
08/09/2019 07:12:23

Thanks guys and response from YT plus the Bigplanes web site looks very nice.....too nice, but not quite what I wanted.

Dear Customer,

YT International is no longer trading due to the current climate, we are now solely concentrating on our pilot business, www.tailoredpilots.com

My apologies for any inconvenience, we are having problems removing the YT website at the moment so will take it down as soon as possible. If you require any model spares then you contact the factory directly, talk to Herlin at esm2002@163.com

Kind Regards,

Wilson.

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