Official Dynam 1500mm B-26 Marauder Thread

[rifleman_btx]

And for the record I looked in this fuselage. No weight in the tail at all

[themudduck]

And for the record I looked in this fuselage. No weight in the tail at all

Your weight may have popped out when you crashed. It was just lying there in the tail gun position, not glued in. Good riddance.

[rifleman_btx]

No this is a new one I bought from the spare parts page, I have both weights from the original fuselage, I had to get a whole new fuse because the impact shortened the left side by a 1/4 inch just behind the wing.

[rifleman_btx]

Makes me wonder if the weights are installed on ones that may have inconsistencies and instead of destroying the units added the weights to compensate for an improperly balanced unit due to foam defects

[ryramZ]

The weights should be mounted vertical in "clamshells" left and right furthest aft compartment. I checked with a pushrods through the foam and hit them from both sides. This is where they go, see finger.

[themudduck]

OK Rifleman I see, you meant the weights were missing from the replacement fuselage that you got. That makes some sense to me, since the replacement parts usually don't have any hardware in them (servos, motors, etc)

Ryan, and Rifleman, separate from that issue...I'm trying to understand why adding weight to the tail would be necessary (or even desirable).
If the model is nose heavy, then you can use a slightly smaller battery or push it back farther. That's what I'm planning to try this weekend.

[rifleman_btx]

So up on the very back wall of the aft compartment? I ran my finger in there and felt nothing at all. Floor back wall or side walls. Only thing felt were the installed guns

[Hardway]

I used a dremel and cut the "pistol grips" off the guns so I could remove them and make them fit the tail gunner area better. When the guns are out, you can shine a flashlight through the gun port and see the weight inside. Mine had one loose and then I found the other one in there....

[rifleman_btx]

Just cged my plane to 65mm here are the battery positions.

[rifleman_btx]

Well minus the two glass pieces she's finished. I had to lower the pitch on the rudder and elevator both with the new servos. They were nearly pitching 90°! So both are dialed back to 27% as that is just about a half inch of travel on the elevator to and that was the highest the rudder could go without jamming the elevator. I wonder what an open cockpit b26 designation would be? FUBAR26?

[Hardway]

With those pilots, I would say YES!!!! LOL Good job Bro!! :-)

[rifleman_btx]

Right, they look like they belong on race horses not an aircraft lol

[TiredIronGRB]

Right, they look like they belong on race horses not an aircraft lol

I hadn't thought about it but you are exactly right....I have a whole shelf of those little jockeys ;)

[rifleman_btx]

Haha indeed

[Hardway]

I give them to my 8 year old daughter! They are food for her dinosaur collection.... :P

[rifleman_btx]

Hahaha that's awesome

[xviper]

Maidened my B-26 this morning. Weather was good, winds light. Used 4000mah, 4s Gravity battery pushed as far back as possible, all tail weights as per stock, no stabilizer used. Flew with low rates on ELE (45%) and AIL (70%). High rates (100%) on RUD. Expo: 30% on everything. No ELE compensation on flaps, deployment 3 seconds.
This grass field is quite smooth but very plush. I didn't video the first, maiden flight as I find it distracting. This plane has adequate power for scale flying. It did require a good run to get off the ground, but not unlike my Flightline P-38. By comparison, my FMS 1450mm P-51 (4 cell) and FMS 1700mm Corsair (6 cell) can get off the ground in 1/2 the distance. My personal taste would prefer if this plane was a 5 cell (or equivalent). I flew the bulk of these flights between 3/4 - full throttle. The only time I could fly it at less power (~1/2 throttle) was during a low, slow, full flap fly by, which exhibited very good stability. Turns had to be planned with use of higher throttle and lots of rudder to keep the plane going where it was pointed (ie, to keep the tail from drooping in the turn). Loops had to be planned with a full power shallow dive. Too much ELE and it rolled at the top as others have already indicated. I did a successful loop but it was with lots of speed and gentle application of ELE.
The following video is of my second flight. Note the angle of UP ELE at the beginning, indication that it was nose heavy. A smaller battery might resolved this and make the plane fly better. Rolls were easy on a straight pass with higher throttle. If flown at higher throttle settings, it never displayed any of the "tip stall" tendencies that have been previously discussed by other owners. Landings with full flaps was a non-issue, so don't know how the gear would take a rough surface. All said, this plane is good value for the money and by previous Dynam standards, is a cut above.

[rifleman_btx]

Nice. I still feel mine had something wrong. Mine didn't fly anywhere near that well

[xviper]

Nice. I still feel mine had something wrong. Mine didn't fly anywhere near that well

That's a shame. Perhaps there are some isolated QC issues. There doesn't seem to be too many videos of this plane flying from private owners as yet, so hard to have a visual comparison as to how each of these things fly. (Mine might be the only one. All the others appear to be from Motion, Grayson or Dynam themselves.)

[rifleman_btx]

As far as I know yours is the first. I looked all over the tail section through the gun port and through the top where the tail feathers bolt on. No weights. However it appeared I had to move the batteries considerably farther back in this fuselage than the first one to cg at 65mm, the 5000 is all the way back.