New Products Flash Sale
Thread Tools
Old Yesterday, 07:33 AM
Rem Fodder is offline
Find More Posts by Rem Fodder
Radio-active flyer
Rem Fodder's Avatar
Canada, ON, Port Hope
Joined Apr 2012
1,394 Posts
The 30 cc Spitfire is a plane that has caught my attention. How do you like it? Of all the warbirds, the Spit is my hands down favorite. I have soft spots for the Hurricane and also the P-40 for second place. Now that I have a place to go that can handle bigger aircraft, my model horizons can expand a little bit.
Rem Fodder is offline Find More Posts by Rem Fodder
Reply With Quote
Sign up now
to remove ads between posts
Old Yesterday, 10:52 AM
erie_flyer is online now
Find More Posts by erie_flyer
Life is a Hobby
Canada, ON, Delhi
Joined Aug 2012
1,214 Posts
Over the years I have built all of the TF balsa warbird kits, gold and pregold - Spit, P39(pregold), P40, P47, P51, F4U, Zero (pregold), Hollywood Zero (modified Texan for Tora Tora movie). Never did the Sea Fury. All glow or gas. These were all 1/7 scale, smaller than 30cc but comparisons are valid. R/C Giant scale has to be landed at speed just like full scale.

The P47 and Spit are both excellent fliers with no bad habits in the air. The Spit is smaller than the P47. I remember standing beside the Spit at Mount Hope before it was lost in the fire thinking to myself that you would have to be a midget to fit inside the cockpit. Part of its small size was lack of fuel capacity. The Spit was built as an interceptor - get up, fight 15 minutes and get back down. The P47 was a flying gas tank for hauling 500 lb bombs and eight .50 BMG.

Biggest problem with the Spit is the landing gear. Scale is too narrow in a model. Ground loop city. Have to build a wider stance which is easy to do in a balsa kit. Retracts are a problem. They swing out and back slightly which can cause problems with the main wing spars. Easier to just stick with fixed gear with a stance between scale and P47/P51. Split flaps build flat but warp over time.

The F4U is a floater. Almost have to force it to the ground when landing. The rotating retracts are a big problem. Don`t stand up to landings on a grass field.

P40 is the worst of the lot. Snap roll demon. Same problem with the rotating retracts and split flaps.

P51 flies scale. Grooves in the air. Don`t land too slow or it will be on its back just like the real Mustang.

The P47 and P51 are the best for flaps and retracts. Never come close to a stall with a P47 with those big Fowler flaps.

The Zeros were a pain to balance with their short nose and long tails. The Hollywood Zero like its parent Texan has a very low stall speed.

Never built a Hurricane.

Bill
erie_flyer is online now Find More Posts by erie_flyer
Last edited by erie_flyer; Yesterday at 10:59 AM.
Reply With Quote
Old Yesterday, 12:32 PM
Rem Fodder is offline
Find More Posts by Rem Fodder
Radio-active flyer
Rem Fodder's Avatar
Canada, ON, Port Hope
Joined Apr 2012
1,394 Posts
Thanks for that Bill. Sometimes its easy to get caught up in the mystique of a certain aircraft type because it has something that just appeals to ones senses. For me the Spitfire is just pure eye candy, never mind its battle honors. Probably for all the reasons and shortcomings of some types as you say, planes from the Hawker family have nice wide undercarriages, thick wings and a generally strong construction. The Tempest would be a nice project to undertake, but it would likely have to be a full kit construction or built from plans. Hurri's are a pretty straightforward, no nonsense type of aircraft.

Speaking of tight fits, I was at the CWH last Thursday with my nephew as he's never been there and has a bit of an interest in flying. We went out with a volunteer from the museum to see the jets outside. The volunteer was ex Fleet Air Arm, flew Seafires, Furies and Vampires. He had us over by the Vampire and I looked inside and could not believe a human being could get in that cockpit if you were over 5 feet tall! The gent escorting us was of a smaller stature and said squeezing inside the Vampire with full flight suit on was an exercise unto itself!
Rem Fodder is offline Find More Posts by Rem Fodder
Reply With Quote
Old Yesterday, 09:04 PM
Staggerflyer is offline
Find More Posts by Staggerflyer
Registered User
Staggerflyer's Avatar
Tama, Iowa USA
Joined Dec 2007
595 Posts
Hi Rem. The Hanger 9 Spit is my first R/C Spit, though I did have a U/Control one many moons ago. This one is really well done, and flies great. However, it does build heavy if going electric. Just not much room to put weight for balance. With the E-Flite Power 160 up front, ten cells of 30C, 5300ma Gens Ace flight batteries mounted right up against the firewall, two receiver 7.4v lipos, of 2000mah and 3000mah, mounted right behind the motor on the motor mount box, as well as the Castle Edge 120HV ESC, it still took about 4 pounds of lead mounted right behind motor on mount box also to get her balanced. 21lbs, 8.8oz! ALL the radio gear mounts directly over the CG, so it does not affect it at all. 7 servos, E-Flite Electric retracts specifically made for this model are very strong and positive. (Second receiver battery is for them.) Uses 19x10 prop. Xoar electric wood.

She flies extremely smooth. And fast. When flying with the gas jobs, if they back off just one click from full throttle, we all stay together. 6 different Spit models at last years Warbirds over Iowa meet in Cedar Rapids, Iowa. Mostly the big Top Flight ones. We were all up together for one flight, plus four P-51s and two P-47s. It was great! My flights were in the 6-7 minute range, using about 50% of batteries. Vertical performance was nearly identical to the gas ones. Flaps work great, as they are basically airbrakes. No noticeable lift on full flaps. But, at 21.5 pounds, she lands fast. Here is a perfect picture taken at the moment of touchdown.
Staggerflyer is offline Find More Posts by Staggerflyer
Reply With Quote
Old Yesterday, 09:45 PM
Rem Fodder is offline
Find More Posts by Rem Fodder
Radio-active flyer
Rem Fodder's Avatar
Canada, ON, Port Hope
Joined Apr 2012
1,394 Posts
That's a beauty Don, looks like a Mk IX with the extra large rudder surface. The call letters on the aircraft are Johnnie Johnson's, who commanded 144 Canadian Sqn. I met him years ago when I was in my twenties, I had just purchased a book on Robert Taylor's aviation art and a local art gallery had Mr Johnson meeting the public to celebrate some of Taylor's art work and to commemorate the 50th anniversary of the Battle of Britain. I took my book and had him sign it under the chapter devoted to him. I was impressed as a young man at this living legend standing in front of me, a real gentleman too. Too bad the shop was busy as I would have loved to have talked with him.

As for your Spit, 4lbs of lead to balance! Holy sh! Could you imagine if those 4 lbs could be dropped and balance maintained? With the P-160 it would be a rocket. Anything I've read about flying Spit models seems to indicate that nose weight is generally required to make them fly well. I fly an Alfa Models Mk V Spit, and it has a fair amount of weight up front (all gear), but no additional ballast weight. Even with it balanced level on the C of G, it still requires a slight bit of down elevator trim. Its the only model I have that requires down elevator trim. It is a sweet flyer, and for a park flyer it flies extremely well.
Rem Fodder is offline Find More Posts by Rem Fodder
Reply With Quote
Old Today, 05:03 AM
Staggerflyer is offline
Find More Posts by Staggerflyer
Registered User
Staggerflyer's Avatar
Tama, Iowa USA
Joined Dec 2007
595 Posts
Rem, something everyone seems to get wrong about elevator trim - it is not used to "balance" the planes CG in the air. It is used to aim the wing into the relative wind, thus balancing lift to gravity. It is used to adjust angles of attack of the wing, thrust line, and horizontal stab to adjust lift at various engine/air speeds. If flown like a full-size aircraft, the elevator trim changes constantly with airspeed. While CG balance does effect it some, angles of incidence are the main contributor to different trim settings on different models.

You are correct on your description of the markings. The kit comes with two full sets. It also comes with both rudders. I went with the later one, Which is incorrect for Johnnie Johnson's aircraft, (actually wrong for both sets of markings in kit,) but I wanted the increased area to counteract the high torque of the Power 160. It swings the largest prop of all the listed engines/motors for the kit.

I was surprised at the amount of weight needed to balance. The motor mount box seen in the photo is where the crankcase of the recommended gas engine, DLE, is. The box sets the electric motor thrust washer at the same point. The box is made by/for the kit, sold separately by Hanger 9. I added absolutely nothing to the kit behind the CG, so the tail weight is in the design. The batteries mount right up against the firewall.
Staggerflyer is offline Find More Posts by Staggerflyer
Reply With Quote
Old Today, 08:20 AM
Rem Fodder is offline
Find More Posts by Rem Fodder
Radio-active flyer
Rem Fodder's Avatar
Canada, ON, Port Hope
Joined Apr 2012
1,394 Posts
Thanks Don, I tend to forget sometimes the relationship between trim, incidence and balance. That airspeed = lift, and not control = lift. And balance about the C of G equates to how an aircraft responds to control inputs.

My Spitfire does not fly nose heavy, and is very responsive to elevator input with the 1000 mah packs I currently use in it, compared to the 1300 mah packs I first flew it with. The extra battery weight of the 1300 pack gave it a bit more stability, but landings were hot. The lighter pack allows for a more gentle approach and flare. Its still a learning curve for me, putting it all together understanding aerodynamics.
Rem Fodder is offline Find More Posts by Rem Fodder
Reply With Quote
Old Today, 10:17 AM
erie_flyer is online now
Find More Posts by erie_flyer
Life is a Hobby
Canada, ON, Delhi
Joined Aug 2012
1,214 Posts
Interesting comment on the relative battery weights.

Went out early this morning to beat the heat with my 48 inch electric Super Sportster. Usually fly with 2200 3S 30C LiPos. Also have it balanced for 3200 3S 20C. Am trimming out the SS with my new Spektrum DX7 with voice. Wanted to see how the 3200s affected trim.

Dead calm. The SS landed perfectly as usual with the 2200s. Wouldn`t slow down with the 3200s. Came in like a bullet. Went around and tried again. Still came in hot so skimmed the grass and got a noseover.

SS way more agile in the air with the 2200s. Slower and plodding with the 3200s. One click of up elevator trim with the 3200s as would be expected but for some reason needed two clicks left aileron trim. These trims came off when I switched back to 2200s.

The new DX7 is a beauty. Firmware and mechanics way better than my old DX7s. Deal on until July 31. Get an AR8000 receiver free. Not the reason I bought it. Have plenty of Rx but a nice touch.

The airplane setup files saved on the SD card are not compatible between the DX7s and the new DX7. So have to start from scratch with each of my planes. No big deal.

Bill
erie_flyer is online now Find More Posts by erie_flyer
Reply With Quote
Old Today, 12:42 PM
Rem Fodder is offline
Find More Posts by Rem Fodder
Radio-active flyer
Rem Fodder's Avatar
Canada, ON, Port Hope
Joined Apr 2012
1,394 Posts
Having to transfer a bunch of models without the aid of an SD card just plain sucks! I've been happy with the DX7s so far, compared the old DX6i, its a dream. Anyway, a guy could go broke trying to keep abreast of new developments all the time.

That Spitfire of mine has a max all up weight of 16 ozs according to the designer, that is with retracts installed. Mine just skids in on the belly and with the lighter battery the auw is 14.5 ozs. which makes it quite agile. I was out flying it at the new club last night after some repairs had been done to fix a broken wing saddle. There is still a hay baler and bale baskets sitting on my home strip from last weeks hay work, kind of makes for tricky flying and landing. Flying at home is off till it gets moved. So it was nice to check out the new field with some different models, one thing is for sure, I'm not used to having a ton of space to fly in. Its kinda nice for a change! The Spit still flies like its on rails.

Neil
Rem Fodder is offline Find More Posts by Rem Fodder
Reply With Quote


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Sold Great Planes Piper J-3 CUB Electric KIT spitfire1999 Aircraft - Electric - Airplanes (FS/W) 8 Nov 19, 2013 09:20 AM
Sold Great Planes Electric Stick kasra Aircraft - Electric - Airplanes (FS/W) 1 Nov 11, 2013 10:13 PM
For Sale Great Planes PT-Electric Kit mewert Aircraft - Electric - Airplanes (FS/W) 6 Nov 10, 2013 01:14 PM
For Sale Great Planes U-CAN-DO 3D (Electric) Flyguy28 Aircraft - Electric - Airplanes (FS/W) 3 Oct 31, 2013 08:38 AM
Sold Great Planes Rimfire 65cc Electric Motor JoeR Aircraft - Electric - Power Systems (FS/W) 2 Oct 19, 2013 09:11 AM