Category: Product Commentary

Turbo Timber 2M SWS – Part 2

As I was ordering, unboxing and just enjoying looking over the new addition to the fleet, I was reading and thinking and starting to make lists of possible updates, upgrades, modifications and accessories that I wanted/needed for the new airframe.

Its pretty cold and windy here in Indiana in the wintertime (Jan-Feb) so my available hobby time was in the shop or attending swap meets when possible.  Often I was going to the swap meets and selling stuff to pay for the TT SWS!

While I was doing all that I started compiling a list of things to consider changing/adding as I assembled the airplane.  Some came from reading about it on line, some from my experience with similar airplanes and what I knew about this new one and some came up during my unpacking, inspection and assembly.  So here is my list, in no particular order along with a few notes.

1. How to attach the landing gear “spats” to the aluminum gear.  – I’ve already seen videos where they fell off on the first flight or landing or both.  I don’t think glue is going to handle this by itself.
2. Install a light switch? – I had one in line with the landing lights on my Grand Tundra and it was nice to be able to switch those off and on separate from all the other lights.
3. Crow?  – If I separate the two ailerons onto individual channels I could have full span flaps and crow if I wanted them… there’s some other mixes this enables as well.  Of course this plane doesn’t need any of that… but I could.
4. Replace the ugly yellow wing bolts. – The yellow bolts just stick out like a sore thumb against the pristine white covering.  Black would look more in keeping with the color scheme as it exists so if I don’t have some “whiter” nylon bolts available I can go that way.
5. The wood prop that it comes with is labeled 15×8 and looks remarkable like, other than being a tad shorter and not as shiny a finish, a Xoar E prop.  I happen to have a Xoar 15×8 in the drawer brand new so I could swap and maybe paint the stock prop to look nicer.
6. Replace the wheels/tires.  – I’ve seen complaints on the tires being to hard but I’m not a fan of the inflatable types on this size/type of plane because they are hugely heavier than these.  If I have any other options laying around or if the new tires are really hard I can look around for a good light replacement.
7. Servo Covers  – I’ve had a plane or two that had little 1/4 of an egg shaped covers or cowlings that shield the servo arm/linkage.  They look nice and are nicely aerodynamic.  I also like the protection they give the linkage/servo when the plane is in transit…
8. Floats – I’v sure the TT makes a great float plane.  I love flying on floats and I have 3 or 4 sets around the house in dusty crannies… If I can find some that are a good fit I might adapt those.  Could always spring for new ones too…
9. Add lights (interior).  – I would like to light this thing up internally to make it easier to fly at dusk and beyond.  
10. Multi-connectors for the wings.  – I have some hanging around already and have the ability to tools to make more.  I know how much easier it is to connect/diconnect the wings when you only have one or two keyed connectors to plug in.
11.  Spinner  – I had another plane recently that used a slotted spinner to increase airflow to the motor and love the idea of keeping the motor as cool as possible for long life and good performance.  Need to see where I can get one and at what price.
12. Wing bags  – There are no wing bags with the airplane and a good set is really needed to keep things looking and functioning like new for a long period.  I need to see what I have around and if not, will probably order something.
13. Identification  – Just a reminder to make sure I add my FAA registration as well as my AMA number.  Don’t want to run afoul of any regulations that will keep me from focusing on having fun when I’m out to fly.
14. Personalization  – I pretty much always do something to separate my bird from the flock and this one will be no different.  Intially I’m thinking of stripping anything that is an actual decal and then add some stripes/pin striping or something similar made from vinyl or RC covering rather than water slides.
15. Camera Mount  – Sooner or later I will want to put a GoPro or two on the plane and get some video so need to start planning location and method of attachment.
16. Clean and Wax  – I have found that, especially on foamies but on covered aircraft a well, if you give the plane a good coat of wax… something like a good map on floor wax… less dirt clings to the airplane and it is easier to keep clean.
17. Glider Tow  – Towing gliders is great fun and this plane looks like it would server very well for this.  I just need to figure out a mounting plate I can put near the trailing edge of the wing (top) and get that in place and controllable from a switch.

There are bound to be other things that pop up as I walk through the assembly so I’ll be back in the next part to talk about my assembly process as it proceeds and also comment on the above items as I address them or decide not to… as well as resolving any of those discovered issues.

Here’s a quick “chapter guide” if you want to jump to any of the other posts on this aircraft:

Part 1 – Buying and unboxing

Part 2 – Inspection and possible modifications

Part 3 – Assembly and modifications

Part 4 – Radio setup, modifications, and repairs

Part 5 – Final tweaks

Part 6 – Flying and Analysis

 

Turbo Timber 2M SWS – P1

I have long been a fan of versatility in an airplane.  I love aircraft that have a wide flight envelope, can fly for a good while if you keep out of the throttle, can tow a glider, haul a payload, fly off grass, snow and/or water, and look pretty good doing it!  For that reason, I have had many planes that to some extent fit that description.  I had my Telemaster 40 rigged with a bomb drop, glider tow release, floats, etc… over the course of serveral years and had several of the Timber line of aircraft, as well as the Grand Tundra and some others…  The Grand Tundra was my everyday airplane filling that role for a good while, but it was never a particularly attractive aircraft and it is foam… I know a lot of folks thing that is great, claim they are easier to repair, etc… but I am in the opposite camp.  I would always prefer to work on a wood airplane.  Once its broken/bent/scraped and battered, I find it much harder to get a foam plane back in shape.  I know partly that is because I hate the sanding and finishing work it takes to make a foam plane look good.  Without a huge amount of work, a foam plane just looks like… well… foam… and once you compress it and tear it… lots of work involved to get it back looking decent… flying maybe but no exactly straight or pretty without a lot more work than I want to do.

So, when E-Flite dropped the Turbo Timber 2.0 SWS it caught my attention.  It is almost the perfect plane, on paper. 

I prefer Electric power to anything else these days (check).  I love anything that uses 3S, 6S, 8S or 12S as I have the appropriate batteries for most of these already in hand.  6S aircraft in particular often fall into a sweet spot of large enough to fly well, easy to haul and inexpensive to operate with high quality 6S batteries being easy to get at good prices these day.

I have been using more and more of the Spektrum electronics in my planes.  The ESCs have all the features I want, including some useful telemetry when combined with the Spektrum receivers I’m already choosing.  They also have some good servo lines and what seem to be good motors and this has all of that as part of the package.

Wood construction covered in good quality iron on covering with a nicely visible scheme.  This means the airplane just looks better than most foamies ever will.  Plus a wood airplane is often just stiffer with less material involved so ends up holding its shape better under G loads… at least that is what I believe.

Thus began my determination to get one…  Several planes went up for sale, along with assundry other items laying about the shop… bye-bye Grand Tundra and hello TT SWS

First of all, I know some folks are going to say… “The price is to high!”  and I get that.  But, my feeling is… aside from I’m getting old and everything seems high to me… the price actually seems very fair.  Especially when you buy the ARF like I did.  The electronics that they chose in this airplane seem to be pretty high end.  The Spektrum line of ESCs, Servos and Motors all seem to be good quality.  My experience so far with their ESCs has been nothing but positive and I have several.  I especially enjoy the programmability right from my transmitter and the available telemetry is something I consider to be a must in an electric aircraft.  You have to combine them with the compatible receivers to get all of this but I would have bought that or a very similar receiver anyway!   I will point out that I do not have, nor want the Spektrum batteries and chargers and don’t see the value to justify the cost of that part of the Spektrum product line.  I have done a lot of study on LiPo batteries and I have a couple of favorite brands I purchase from at a much lower price and better performance than anything Spektrum has produced so I don’t expect that to change anytime soon.  The servos have great specs for the price and while I’ve only had a few, so far so good.  I don’t think I’ve owned any of their motors yet, but they appear to be well built and I’ve not seen anything that would give me pause… so the ARF comes with equipment I would likely chose for myself so all in all the bundle makes sense to me financially.

So a few days ago I figured out how to get a 10% off coupon which aligned well with the balance in my “RC fund” as a result of some sales at a couple of swap meets and Facebook marketplace adds and the order was placed.  I also got lucky and caught it in stock for what I understand was about a one day window on Tower Hobbies web site.  I think this was the second shipment they received and the ARFs didn’t last long!  I settled in to wait the predicted 2 weeks or so for free shipping and started looking for any discussion groups or video reviews that I hadn’t already read.  That lasted for about a day when suddenly I got an update saying it was shipped via Fedex!  Being only 100 or so miles from Champaign, IL where Tower is based has some advantages and the predicted arrival was 1 day!  It got confusing for a bit as Fedex seemed to decide it hadn’t shipped after all then changed the expected arrival day two or three times until finally it actually showed up after only 2 work days!  Yahoo!

I was a bit concerned when I saw the box had a corner torn out…

It turned out the outer corrugated box had done its job and protected the contents and even the inner box with all the pretty graphics was in like new condition! 

Work got in the way and it took me the better part of 2 days to unpack the box and another to unwrap all the parts and lay them out on the bench.  It may have taken a few hours just to clean the bench and make room to do this but much of that was done while I attended to some conference calls with my headset on.  Having a new airplane all layed out on the table right behind you can be distracting but I managed to at least do my cleaning chores and some unwrapping while paying sufficient attention so a few business calls!

Here’s some pics of that process to give you some idea how well the packaging worked out… Everything seems intact with nothing beyond a scuff or two… that’s about as good as can be expected for a shipment from (I presume) China all the way to the midwest US.

Just taking off the lid…

Wings out and down to the tail sections… everything taped down to minimize shifting/scuffing.

Tires, LG, all the hardware… bags in bags to keep things separated.

Notice the wings have guards over the servo linkages to keep those from digging into anything else… nice.

Front and back of fuse are embedded in foam to keep it away from box sides…

With tail pieces removed we find the cowl (fiberglass) nicely protected/wrapped and secured in place.

After removing the cowl and body… down to the bototm of the box where we find the prop and wing tube.  Prop looks like a copy of a Xoar (or maybe made by them??)  Finish on the prop is not quite up to Xoar standards and the length of the blades is a few mm short of my actual Xoar but the basic shape and profile is very close.

All the parts on the table… awaiting unwrapping.

Now free of all the plastic wrap… not a lot of parts.  If I was in a rush maybe a 2-4 hours and I could have it done??  But I am being meticulous on this one so it will take much longer.

I’ll break this up at this point and start on my next steps with the following disclaimer:

I’ve seen enough on the lists and video reviews and such that I am confident in saying that you could easily (if you have much experience at all) just go through the directions provided in a few hours and come out the other side with a perfectly serviceable and good flying, completely stock, Timber 2.0 SWS…. but that is just not how I roll!  I’m not big on doing modifications just to do them, but I like to do what I think will result in the airplane having a long life… no silly crashes because someone didn’t tighten a bolt… and I want it to be just a little distinct from every other similar airplane at the field.  I also want to do what I can to make it run efficiently with adequate power and flight time, and as easy to transport and assemble as I can without to much effort.  So next up will be an inspection and a list of what I see that I might check/change or modify to make this airplane uniquely mine and to help make it last (I hope).  Some other setup/changes will be to suit my intended purpose(s) without getting to drastic.  And I’ll be picky and try to fix anything I see that jumps out at me as being “not to my standard”.

Here’s a quick “chapter guide” if you want to jump to any of the other posts on this aircraft:

Part 1 – Buying and unboxing

Part 2 – Inspection and possible modifications

Part 3 – Assembly and modifications

Part 4 – Radio setup, modifications, and repairs

Part 5 – Final tweaks

Part 6 – Flying and Analysis

 

I recently aquired a Freewing JAS-39 Gripen. 

Up until recently, I have never been particularly interested in flying EDF aircraft but with the latest updates in battery technology allowing for more and more energy per ounce of battery and the shift toward more and more of these type of aircraft being available in ARF or RTF foam bodied airplanes I have begun to consider having one or two in the fleet.  I did some research into available A10s and didn’t find one that really met my personal requirements.  Same for a couple other models.  In the end it came down to an impulse buy from another club member at a nearby swap meet.  He had an airplane that had always interested me and it was essentially new and at a good price.  Not least of all, there is going to be an EDF only event at the field this summer so I wanted to have something nice for the event!

As with most warbirds that I purchase, I did some research on both the real airplane and the model.  First, about the real airplane.

The Gripen is a swedish multi-role fighter that is largely considered to be one of the top two most capable fighters in the world (the late model F-16 is the other and they stack up very well against each other) if you exclude stealth aircraft.  By most accounts it is one of the best gen 4 jets ever built and it continues to be upgraded.  Its distinctive canard design and power to weight ratio make it a very capable dog fighter and the advanced electronics packages and flexibility of weapons payloads make it an extremely dangerous opponent in BVM (Beyond Visual Range) combat.  The F16 is also a very nimble and highly powered platform with similar capabilities… it just gets there by having more thrust to offset its heavier and larger chassis.

As far as the model goes, research says this airplane has a lot of capability depending on how you set it up and fly it.  There seem to be three common complaints from those who own the airplane.

1.  It is rather large as compared to other aircraft running a similar power system which leads to complaints that this results in it being a bit heavy for this system and therefore not as high a thrust to weight ratio as some would like.
2. Using the recommended battery size and capacity results in an aircraft that is nose heavy compared to the recommended, which results in an inability to perform certain manuevers.  A select few who seem to be well respected say even the recommended balance point leaves the plane significantly nose heavy.
3. Using the recommended battery also results in short flight times… perhaps even compared to most EDFs which are somewhat notorious for short flight times to start with.

I’m not as concerned about the first issue as I haven’t done much EDF flying and am not all that fond of high speed so while I wouldn’t mind to have some extra punch available to me, I’m not looking for a lot more speed than is necessary to make the airplane fly well… and it seems to be capable enough by that measure.

Items 2 and 3 are somewhat of a concern and are of course intertwined.  In most electric aircraft, you have the option to add a bit of battery capacity if want to extend flight time, but with this airplane, adding a larger capacity and therefore heavier battery will just exacerbate the nose heavy condition as the battery is in front of the balance point and can not practically be moved rearward to compensate.  I don’t like extremely short flight times and I would like to explore some high alpha flight which requires a proper balance point to perform.  In addition, since the airplane is already a bit on the heavy end of things, I don’t really want to add dead weight to the tail to force the balance rearward.  There was no apparent solution…  Welcome to the world of EDFs and aircraft design I guess… Everything is a compromise.

Further research along with some fortuitous timing led me to what I hoped would be some improvements.  I won’t go into a lot of long winded discussion… maybe another post… but the answer seemed to be to use a battery that housed a bit more energy with minimal weight penalty.  The best thing available looked to be the SMC LiHv packs so I ordered a couple 6S 5300s.  They are no heavier than many other 4500-5000mah packs and pack a bit more punch than standard LiPos due to the HV cells.  Best I can tell, they are the bomb!

I flew the Gripen for just 2 flights.  It took off beautifully from our Geotex runway and tracked nicely in the air as long as you kept a good amount of power on it.  You could slow down pretty well and the plane would continue to fly but it starts doing a bit of rocking which indicates you are approaching stall.  That is a good thing compared to many jets who (as I understand it) just drop a wingtip and stall with less warning.  Credit to the aerodynamics of that big delta wing I suppose.  Visibility leaves a lot to be desired between the gray and the arrowhead body shape, there isn’t much to keep me oriented aside from keeping it close.  I added some extra markings between flights 1 and 2 which helped but to get much better I’d really have to do some thing drastic.

And then I had to land it.  I probably carried more speed than I had to but again the big delta wing makes itself known during the flare as you can really get into a fairly nose high attitude as you land which results in smooth landings with little load on the gear.  Both flights the landings were really pretty.

I didn’t really get a chance to do much trimming or playing with rates and mixes as the flights were by necessity short as the power system is typical from what I understand… which is to say inefficient and power hungry!  The good news is it apparently needed little to no trim so I didn’t need much trim time!  By the time I got a bit comfortable with it I was on approach.

I flew the first time for 3.5 minutes before landing with a decent battery margin and the second time with a bit more crosswind and holding a bit more speed during the flight for only 3 minutes.  The first time I had a decent margin of capacity left but not a ton and the second it was a bit lower than where I normally like to land.  This is just far to short for me.  I couldn’t get the plane up and comfortable with enough time to actually explore much of the flight envelope and I also didn’t like how fast it has to fly in order to fly well.  That also left me no time to try out different mixes, play with high alpha manuevers etc…

Maybe I could adjust to it eventually… but I don’t think I’d ever be really happy with flying it.  Having a fast flight regime is great, but I also want to be able to fly slow and gentle.  I have planes that can do both but I don’t this is ever going to get there.  I’m also concerned that if I try to push it to do what I want it to do I’ll find the hard edge of control one to many times and crash the plane.  There are just to many other planes I would rather fly and/or want to own to hold on to this one.  This one flys to much like its scale counterpart… fast, powerful and heavy.  I don’t think EDF fighters are for me.  For those who like these type of airplanes, I suspect there will be some folks who will love it.  Just not me.

Maybe an A10 or L39 someday…  In the meantime, anyone interested in a low mileage fighter?

Early in 2020 I was wandering through a huge swap meet over in Dayton, Ohio and I chanced across two new-in-box 60″ish” size Seagull Models T-6A Texan IIs…  One was made up in a beautiful Red/White/Blue/Black and Silver scheme and the other in more of a gray camouflage pattern. 

I admired the models and quickly decided they were not for me.  I kept telling myself that a T-6A is a jet trainer and surely would be fast and heavy and besides, what did I have for a power system?  They are a bit more unique though and the red/white/blue scheme sure looks nice… I almost didn’t make it past the table when the owner made an offer to let me have one for what couldn’t be more than 1/2 of the cost of a new model!!  I stuck my fingers in my ears and ran to the next set of tables… 

Fast forward a couple hours later and I’m about to finish my first lap around the meet when I noticed what looked like a NIB Hacker motor.  The gentleman explained he had bought it as a spare that he had never needed.  I had some recent experience with another Hacker that was part of one of the best E power setups I had ever operated so this looked tempting.  Again the price was right and this time I didn’t try too hard to resist.

Now armed with a high powered 6S power system (1250W continuous and able to easily handle 1600W) I realized I had the exact motor for the Texan II.  After a brisk walk and a quick negotiation I had the airplane as well.  Wait, what had I done!?  It is still a jet trainer.  I like lightweight, overpowered, nimble and aerobatic aircraft with simple fixed gear!!  Why did I buy this beautiful, sleek, heavy trainer with mechanical retracts??

Over the next couple weeks I worked my way through assembly of the T-6A.  Since my expectation was that this airplane would likely end up being something I’d only fly once in a while and probably end up selling to those who have more appreciation for “war birds” I decided to make sure I added most or all of the scale details (something I might normally skimp on) and try not to spend an inordinate amount of money assembling all the pieces and parts I would need.

With that in mind I installed the pitot tubes on the wings, the anti-static rods on the elevator  and even took the time to make a color change on one of pilot busts so that they wouldn’t look quite so much like twins!  I also took some extra time to apply the decals and even did some “base layer” covering work under the star and bar logos to help cover up the color change underneath and not allow it to show through.  I also opted to install the mechanical retracts where I would normally have spent the $300+ to purchase electrics.  The mechanicals are going to cost me more like $50 to install, mostly the cost of a retract servo.

The first pleasant surprise was how well the retracts worked with nice direct routing of the linkages.  Ok, so I’m not a big fan of the plastic inserts for the wheel wells, but with some care they at least are a decent color and fit.  Again, I’m not a big fan of a once piece wing but the upside is the  simple retract linkage geometry and the need for only 1 servo to service both mains.

Once I got it all assembled I was back to the overall look.  I love the lines of the Texan II, the PC-9, and similar aircraft and this one has a great color scheme… but I wasn’t getting my hopes up on flying characteristics so with little fanfare I took it out to the field and with only a couple of friends present I flew it for the first time.  All I can say is wow!  This thing is certainly a warbird.  It’s not light and flies much better with a little more throttle… she’s no floater… but it feels like it is on rails in the air and has enough wing to handle the weight so just by keeping a modicum of speed on the bird, she flies great!

Since that day I have probably put 30 more flights on the airplane and I’ve had zero issues with it.  It flies really well and with all the scale touches it looks great in the air.  I don’t recall flying it without someone commenting on how nice it looks.  I’ve switched out to a very slightly less efficient 4 blade propeller for even more appropriate scale looks on the ground and I’ve had a few of the scale details get broken during transport and assembly but otherwise it has so far been a great airplane.

I created some protective covers out of foam, cardboard and tape to protect several of the protrusions… antennas, static rods, etc… and had to create some replacements once in a while the flight characteristics have been very pleasing and I do enjoy flying it… and lets admit it… the comments and attention it gets!  I have a Styrofoam holder (cut with a foam cutter from a shipping container for frozen food) for the body and a wing bag for the one piece wing that helps keep it all safe during transport and those have cut down on the issues.

So in summary, I’d recommend the plane to anyone interested in a nice psuedo scale attractive airplane that wants to get into warbird type aircraft.  Its a nice step from sport planes into that realm and you will enjoy flying it as long as you remember what it is and fly it accordingly.  3D is not ever going to be its strong point, but sleek lines and scale aerobatics are done with ease and look really nice in this bird.  It has earned a place in the hangar at least for now.