Posted by RGS2010 |
Aug 04, 2011 @ 08:25 AM | 8,312 Views
Had a bad rash of luck in July. Crashed three planes in two weeks. The FMS P-51 Mustang nosed and and cracked to pieces. Was on a "go around" after aborted landing about 20 feet off the ground and when turning gentle left, it suddenly spun right and nosed into the ground. Still have no reason for it. The rudder was torn loose on crash??? The plane was not recoverable.
The same day...I flew my P-47 using flaps (new thing for me) and it was in almost identical position as P-51 and crashed EXACTLY the same way. It might have been too slow on the go around and just lost airspeed but there has been rumors of a microwave problem at JSC that interferes with 2.4ghz equipment??? The Jug had a badly cracked fuselage on top and bottom, crooked prop adapter, broken firewall and a little rash on the wing. As of 8/4/11, all is fixed and ready for remaiden.
The next week my T-28 crashed while doing inverted maneuver and the problem ended up being an bad aileron servo. Fuse was cracked, nose wheel torn off, and cracked wing on left side bottom. Remaidened 7/30/11 and it flew well but motor is not quite what it used to be but it was serviceable.
Replaced P-51 with new Banana Hobby Starmax F-18, version 2, with 70 mm EDF and is 4 channel with working rudders. Replaced stock UBEC with Hobby King 5 amp UBEC since so much trouble with stock one. Ready to maiden this weekend.
Posted by RGS2010 |
Feb 01, 2011 @ 09:45 AM | 6,288 Views
Just pulled the trigger on Banana Hobby's LX B-2 Stealth Bomber!
Wife actually saw this plane online and said, "You have to get this plane!" So, being no dummy, I did.
Now, this thing looks to be a handful to fly and reading all the thread posts prove that to be true. I ordered the RTF version and then just deleted the radio and battery charger.
Ordered from Banana Hobby on Friday and UPS has it on schedule for delivery by the next Thursday! Let's hope all is well in the box!
Will keep you posted.
Nothing but trouble with landing gear. Have to rebuild and put electric retracts in due to mechanical retract on left side broke. I dug both out and put in electric retracts but now getting the doors to close when retracts go down is a major pain. Wish I had never gotten this plane!
Ordered and got Windrider landing gear for electric retracts. Have to make time to install them.
Windrider gear just too big for landing gear bay. Ordered another set of HobbyKing retracts to get one to work.
Posted by RGS2010 |
Jan 31, 2011 @ 09:59 PM | 4,716 Views
Last weekend I crashed the Panther. It was the HK Orange 6 receiver that was the culprit. It browned out twice before crashing. The first time it browned out, it was headed toward the ground and reconnected at about 10 feet. When it recovered I went around one circuit around field preparing to land. The second time it lost connection at about 75 feet in a slight nose down at 25% throttle. I throttled down to try to reconnect but it would not connect. The engine never throttled down or up. It crashed in water filled ditch and was a total loss, except for electronics and engine.
It looks like that previous battery connection crash was probably due to receiver problems. The Orange RX is now in the trash.
Loved the plane but won't order another airframe 'cos just didn't like the snap tendencies.
Posted by RGS2010 |
Dec 22, 2010 @ 10:46 AM | 4,724 Views
Re-Maidened the Panther last week.
Completely stock setup except for the 40 amp ESC and added landing gear.
The takeoff was straight down the runway with the wind coming straight down the runway. It lifted off about halfway down and easily jumped into the air. I had all controls at max so it was a bit jittery but controllable. It aileron rolls very fast (a little too fast for my taste with my inexperience with EDF's). I had it loop slow and it fell off a little on bottom side of loop but it was fair.
It tracks through the sky just where you put it. Looks great on flybys, fast or slow. It can get far enough, fast enough that you need this small plane pretty close to you to keep orientation...at least I did.
I got 4 minutes with about 3/4 throttle most of the way. I needed one setup pass before I landed but it landed right where I wanted it. The 5 mph head wind was a help with the landing but subsequent landings have not been a problem with less wind. I wouldn't want to land it in over 10 mph winds due to how light it is.
This is as small a jet as I would enjoy having...but I'm enjoying this little Korean-era jet. It's tough as nails to boot!
Posted by RGS2010 |
Dec 14, 2010 @ 08:49 AM | 4,894 Views
Rebuilt the new airframe using same tail assembly since undamaged. I found that the control horns on ailerons and elevator are brittle! I put on pushrod connector and tightens nut to control horn and when I moved control surfaces...every one of the control horns broke off at the tip end. I then put z-bend in mid hole (now top hole) of control horn and put connector on servo end of all three control surfaces. The servo control horn is much more pliable and takes the tightening better. I then thread locked all connectors and then put a dot of epoxy on connector nut to secure.
I maidened AGAIN on December 11th @ Tom Bass Park. Using Rhino 3S 2150 30C battery and stock edf's and esc's. Wind was straight down the runway at about 4 mph. I went to full power immediately (short runway) and climbed out just before end of runway. Nice power and got to altitude. Several circuits around field were uneventful (whew!). Aileron rolls were quick and accurate. Loops were no problem with enough speed (this is not meant to be a very aerobatic air frame). I shot several trial landings with some difficulty due to the floating and ballooning nature of the plane. I even bounced one and went to full power and it climbed out well to go around. Then shot several good landings. I put 3 batteries through the plane including my favorite...Turnigy 3S 2650 30C...that flies great at the 4th "column" from the front of the battery compartment.
Now this plane is no speed demon either. I flew one battery that was a Turnigy 3S 2200 20C and there was barely enough power for takeoff. I finally got up to altitude and landed quickly. Only 30C and above for me on this plane.
Maidened the Warthog yesterday and lived to tell the story. Thanks to Dude_109 for the video.
Stock setup (except horiz. stab. mod)...Turnigy 2200 3S 25C battery(was going to use a 20C battery but one of my flying buddies talked me into 25C for maiden), Spektrum DX6i w/ AR6200 receiver. Battery placement between 2nd and 3rd rib to balance upside down at about 75mm in from leading edge of wing. Per the insert, I had 3mm, at least, of up elevator set.
Winds were light from the south with no gusts. I started with gradually increasing power and then hit the Amps! It took off JUST before the end of the paved runway (that is fairly short at our flying field). With full power from the start, it should be no trouble.
The A-10 pulled out with good (not great) power but perfect for my EDF introduction. After 2 clicks of up elevator, it tracked straight and true. No bad tendencies whatsoever. It cruised fine at about 60% power. Aileron rolls were no problem and a thing of beauty. It does tend to dip the wing on turns so have altitude or add a little power as you go into the turn. The area of concern was the elevator. When I attempted my first loop, it basically did a hammerhead stall. It simply did not have enough authority. On my second attempt, I had almost full speed and then it looped easily.
First attempt was aborted because this thing FLOATS! I thought when I chopped power that the A-10...Continue Reading
Posted by RGS2010 |
Oct 05, 2010 @ 10:25 AM | 4,457 Views
FMS P-51 retracts:
Got replacement retracts...getting tired of fussing with them all the time...and replaced the stripped one. Everything now works fine EXCEPT...when it retracts while flying it still does what the other one did...it drops down about 1 inch where you can see it when flying. Now it doesn't do this while retracted on the ground and it feels solidly retracted. Have tried everything including reinforcing the retract unit so it doesn't move around during flight. I finally got it down to about 1/2 inch drop so I'm just going to live with it.
By the way...I love the FMS Mustang for what it is. It's a scale-like flying plane that flies fairly fast with the 2-blade prop (APC 13 X 8 or 13 X 10 Electric) and looks GREAT in the air. It is a handful to land without flaps (I didn't install them) with no wind. It comes in fast on my short runway. It's a breeze to land with even a little head wind.
This is the plane that always gets the "Balsa Guys" attention at the flying field.
I recently crashed my Spitty doing an inverted pass low to the ground and I cracked the fuselage in two pieces and trashed the wing. Well the fuse glued together great but I had to get a new wing from Banana Hobby. They had it to me within three days of ordering and no problems!
The motor was fine but the spinner was cracked and useless. I was at the LHS and saw a Parkzone P-51 Yellow spinner that looked about same size, etc. so I bought it. I then took a PZ P-51 2-blade prop (which has the cutout for the nut in the back) and mounted on Spit and it looks great!
Bonus: It flies faster and more maneuverable than the 3-blade prop! I think it looks better too. It matches the other yellow on the plane perfectly. I know, I know, it's not stock but that is not that important to me.
I maidened the Spitfire last Saturday. I was still a little concerned about the lack of movement from the elevator. I had stock 3S, 20C, 1300 lipo with stock 20 amp ESC and stock motor. It took off in a short amount of runway (about 20 feet) and had a bit of left torque that took it off center of the runway. It recovered well and climbed out with good (not great) power. The elevator worked well (especially down travel...upside down flying was very responsive) with the modification. However, the ailerons were not as responsive (middle hole) as I would have liked, so I moved them to max throw on subsequent flight.
The flight characteristics are good. It loops well, aileron rolls well, barrel rolls well, knife edge flight is okay, and the only drawback is that you HAVE to land it with some power. I tip stalled on my maiden landing and scratched the wing tips (I knew I should have put clear tape on wing tips before I flew!) but nothing major. All subsequent landings have been fine. One note...after touching down feed in full up elevator to pin the tail to the runway to avoid nose overs. Don't ask me how I know this .
This model is NOT for beginners but it handles well and is a good 4 channel warbird as a second plane. I cut off my wheel pants because they were catching too much wind during flying and that helped on speed and landings.
Posted by RGS2010 |
Jul 06, 2010 @ 08:48 AM | 4,371 Views
I have removed 2 of the 4 blades of the propeller to see if it affected takeoff performance. It did! The takeoffs are now smooth and predictable and easily controlled with rudder input. It is a scale-like takeoff now which is a beauty to behold. I have ordered the dedicated 2-blade prop setup and will report on its performance when installed.
I also had to replace a stripped tail wheel servo with HXT-900 servo from Hobby King. It's a drop in replacement EXCEPT it's not reversed as the original one was. Had to go to LHS for dedicated servo reverser...$8.
One of my ailerons was cracked halfway down the hinge line after only 3 flights. I put aileron tape on each end of each aileron to secure. I also put aileron tape on the elevator for piece of mind even though no sign of cracking.
I added Scotch brand extra strength, clear packing tape to the entire under side of the wing. It did help with structural integrity in flight.
I hear that FMS is coming out with large Corsair soon...can't wait for that!!!
Great flying warbird with some left torque issues!
I have heard that there are some left torque issues with the 4-Blade prop and it shows here. Also noticed that the nose was a bit heavy on take off adding to the problem. I plan on taking two blades off and trying it to see if that makes a difference. I also have the dedicated 2-Blade Prop and spinner on order to try later.
Also, noticing some difficulty with the elevator. Not on video here but when I am going into a loop, the plane falls off to the left or right and is not cleanly going around. I don't know if it's limber linkages or ??? I'm using a large JR Standard servo to replace the stock one so I know it's not a problem there. There is also no play in the linkages on the ground so I can only assume they are bending under load in the air. May have to replace or reinforce them.
Posted by RGS2010 |
Jun 21, 2010 @ 03:31 PM | 4,351 Views
Finally got to re-maiden the P-51 on Sunday.
I used Turnigy 3300 4 cell 20C battery and it fits perfectly into the battery compartment with ZERO extra room!
I replaced all 4mm red connectors with EC3's on ESC and on the battery. I rebound and checked the AR500 receiver with my DX6i. I use the extra aileron port so I don't have to use a Y-servo connector. The metal gear servos for the retracts, 380Max MG from Hobby King, lock out the gear great with 120% travel.
It was late afternoon with 5 mph steady winds, gusting to about 15 mph, coming out of the south straight down the runway. I lined her up and headed her down the runway until the tail came up and then full throttle into the air. The P-51 has plenty of power to get airborne in a hurry with the stock motor setup and that big 4-Blade propeller. I climbed out to about 100 feet and turned downwind. I had to add a bit of up trim due to extra weight of battery but only about 3 clicks. She tracked straight and true. Left turns took more effort than right turns, which were crisp. Aileron rolls were much faster to the right. Loops were slow and scale-like, very nice. It even flies upside down well with plenty of speed (and holding my breath!). I flew for about 7 minutes at about 3/4 throttle most of the way. It is a true joy to fly. I could "feel" the weight of this plane while landing. I had to go around three times before landing due mostly to the gusting winds. But, you MUST land with power with this plane. It has a tendency to drop the right wing if you don't...this is no glider! That being said, it flared nicely on the runway for landing. I won't be adding flaps.
Next time I'm going to take off 2 blades of the propeller and see how she flies on 2 blades and see how much more performance I get.
Posted by RGS2010 |
Jun 10, 2010 @ 10:12 AM | 3,801 Views
Yes the Corsair crash and the P-51 crash were on the same day! Some people just don't know when to quit. But, the T-28 flew great with three batteries through it. I flew with the stock 2-blade prop but I like the 3-blade PZ prop much better.
The wind was about 6 mph and coming slightly across the runway. The rudder on my P-51 was less effective than I am used to and so I had to "gun it" and get it in the air quickly. It takes off very quickly with that big 4-bladed propeller.
I was surprised at how docile the airplane handled in the air. It was even a bit sluggish. I can see why people have upgraded the motor. I made 4 or 5 circuits around the field to trim it properly and test out the retracts. All was well.
When I put down retracts for the last time and came in for final approach, I lost all power. Thank goodness that I had already almost flattened out the approach so when I lost power at about 50 feet, it glided to about 10 feet before losing enough airspeed to drop the right wing and hit on the bottom of the nose.
There was no damage at all! A little rash on the bottom of the air scoop but that was it. The power was still off when I picked it up although the battery connections were still intact. I believe it was poor connections with the 4mm bullet connectors. I had suspected them before but after one small problem with it, I thought it was okay. Wrong!
I have since replaced all connections with EC3 connectors and will report back on next flight.
P.S. After restoring power...even the retracts sustained no damage after a pretty hard crash. Gotta love those metal gear servos! Also surprised the stock landing gear took such a hard shot with no problems.
Posted by RGS2010 |
Jun 07, 2010 @ 03:24 PM | 3,443 Views
On Sunday (6/6/10):
I was out flying the Corsair on a balmy Sunday morning with fairly light winds. It was flying beautifully, as usual. I pulled out of a steep dive when the battery flies out of the compartment and falls to the ground. The Corsair kept going straight up for about 10 feet and then the wind took it downwind about 50 feet before nose-diving into the ground. Even though it landed on the nose, the motor was undamaged...even the little yellow nose cone was fine. The battery was also no worse for wear as it landed in soft grass.
The wing cracked in half and broke the fuselage where the wing connected to it. The damage was definitely fixable but I had too much trouble with the rudder servo always going out of alignment and having to take the tail off and recentering the servo and the wheel, so I decided to let it go to Warbird Heaven. I scavenged all of the electronics, servos, control horns, landing gear, motor and esc for another plane down the line.
I had just gotten new 1600 Turnigy batteries that fit snugly in the compartment. I got in a hurry and stuffed the wires too tightly against the door which I'm sure contributed to the crash. Pilot error was much more to blame for this incident than poor construction.