Official Dynam 1270mm F6F Hellcat Thread

[Builda]

I used the FMS P40B retracts on mine and also added some Hobbyking sourced sprung oleo struts. After that I 3D printed some 4° wedges and put them between the retract and the retract mount (to push the wheels forward when the gear is down). Best thing I ever did, plane has awesome landing gear now.

Power setup wise I used a turnigy SK3 740kv motor (they only do one)-it's rated 65a and 880W. I put a 13x8 MAS prop on (same as stock but smaller chord length),and a hobbywing 60a ESC. I had to use the dynam Geebee dome nut to hold the prop on the SK3 adapter. All of this is a direct bolt in fit with no mods required-when run up the plane pulls 800W-815W and 60-65a WOT Static (depending on esc timing setting). If you try to use the stock prop it pulls about 1300w (lots of heat) hence I went MAS prop the same size. Really nice power upgrade for anyone looking for a RELIABLE and proven setup that won't set fire to your plane. I had to learn the hard way when some dufus told me to stick the dynam beaver motor in "cause everyone does"...yea right-just about set my plane on fire it got so hot!

Heres a video of mine with the above mods:

https://youtu.be/TbJfOr3d3so

[CaptAmerica]

I used the Eflite Corsair retracts , they dropped right in. I still had to use the factory struts to get the correct length. They do bend a lilitt on hard landings. Ive heard that the FMS p40 struts work good as a replacement.

[Prowler901]

Oh, I do love how the plane flies. I don't want a speed demon. But, it just seems to need a little more punch. My other warbirds fly at around half throttle. But, this one needs about three quarters.

Your acquaintance must land very lightly all the time.

[Woodcock]

I completed the retract replacement with the Eflites. I couldn't get the Dynam pins out with just pliers. I removed the struts from the plastic trunions and found that Dynam solders the back side of the pin. I had to grind a little material away to free the pin. I then knocked it out with a hammer and punch. Everything else was a cinch. They work so much better now. These Dynam wire struts sure do bend easily though. Is there a sprung strut that can replace these Dynams? Also, is there a prop that folks are upgrading to? She feels like she could use a little more thrust.

Ya know this is one of my favorite planes hands down. This goes to show you, ya don't have to spend a fortune for a really cool plane. Yea the Landing gear mod cost you a bit. But ya know, General Hobbies has these things for 129.00 every now and then. General Hobbies not so good, "This is a Warning". But GH seems to do these pretty good.

But I have ordered a few of these and a few Dynam Corsair's. Another plane I have spent about 129.00. Beautiful Corsair, I have three of those too, LOL.

As for the power, I like the stock power just fine, it's pretty scale in my opinion. Trust me, I have very speedy planes. I just like the scale flight of these. Enjoy.

Woodcock

PS I have an acquaintance that has 4 or 5 Dynam planes with retracts. Most amazing thing. He has never had a retract failure, WITH THE STOCK RETRACTS. LOL I was watching him do touch an go's for about an hour yesterday. Gear down land, gear up fly the pattern. Gear down Land, take off gear up. Non stop. I just sat back drank my coffee. Frekin amazing. W

[Prowler901]

I completed the retract replacement with the Eflites. I couldn't get the Dynam pins out with just pliers. I removed the struts from the plastic trunions and found that Dynam solders the back side of the pin. I had to grind a little material away to free the pin. I then knocked it out with a hammer and punch. Everything else was a cinch. They work so much better now. These Dynam wire struts sure do bend easily though. Is there a sprung strut that can replace these Dynams? Also, is there a prop that folks are upgrading to? She feels like she could use a little more thrust.

[Prowler901]

Which Eflite retracts did you use? Any tips on installing them? I had my maiden flight yesterday. And, the landing killed these Dynam retracts. I'm happy with the plane overall. It looks and flies really nice.



Edit: I found Atesvn's detailed post on the retracts and flap mods.

[CaptAmerica]

Finally changed out my retracts to the Eflite. Work flawlessly. Added a sound system and put several flights on it, 2 thumbs up.

[rifleman_btx]

Yeah minor trimming, but its worth it:Cool:

[WrightBrosRC]

The gear is the thing I complained about the most when I first got this aircraft nearly seven years ago. Ironically, the gear remain original and everything else has since been replaced. LOL! The foam tires are nearly gone!

The vid is about 5 years ago and the livery has changed again, but I still fly this plane a couple times a month.

[TiredIronGRB]

Do the Corsair retracts drop right in? Or do you need to trim the retract legs or foam for the right fit?

Some trimming required :Cool:

[Cchrissyv1]

Also almost forgot, dynam retracts are not reliable or durable, i would replace with eflite 1.2m corsair retracts. I did for this one and the dynam corsair. Much better durability and reliability.

Do the Corsair retracts drop right in? Or do you need to trim the retract legs or foam for the right fit?

[fhhuber]

You know I purchased all my Dynam Hellcats about 2 years ago. Rumor has it they have better retracts now. I had to change mine because I got a bad one out of the box. But I just watched 2 Dynam planes with retracts yesterday getting pretty badly abused. They kept on working I was actually impressed.

Woody

I have a nearly 5 yr old Dynam P-51 that has never had an issue with its retracts. Sometimes the Dynam retracts are just fine. Sometimes they are DOA. That hasn't really changed. I'd say 75% f the time they are fine until damaged by an impact bad enough to break the trunion. (even working when its cold enough to get icing on the model in flight) but when they fail, they can cause an ESC to shut down from BEC overheating.

[Woodcock]

Haha no worries! I am very thankful to have people like you to provide the much needed feedback. I will definitely be adding this plane to my hangar very soon.

Happy flying!

You know I purchased all my Dynam Hellcats about 2 years ago. Rumor has it they have better retracts now. I had to change mine because I got a bad one out of the box. But I just watched 2 Dynam planes with retracts yesterday getting pretty badly abused. They kept on working I was actually impressed.

Woody

[Cchrissyv1]

It's early mate. I'm a little cranky in the morning. My sincere apologies mate. But as Hardway implied, this is really a nice flying and looking plane. Best bang for the buck in the model industry.

Best Regards
Woody

Haha no worries! I am very thankful to have people like you to provide the much needed feedback. I will definitely be adding this plane to my hangar very soon.

Happy flying!

[Woodcock]

Oh I wasn't trying to give you a hard time, my apologies. I was just making sure I understood. But thank you for that, it is good to know.

It's early mate. I'm a little cranky in the morning. My sincere apologies mate. But as Hardway implied, this is really a nice flying and looking plane. Best bang for the buck in the model industry.

Best Regards
Woody

[Cchrissyv1]

Give me a break would you! It's a great plane. Due your due diligence.

Woody

Oh I wasn't trying to give you a hard time, my apologies. I was just making sure I understood. But thank you for that, it is good to know.

[Hardway]

It is a great plane for the price point. Not hard to do the mods. I have the stock gear in mine and they were fine until I hit a curb with one on approach. Then it didn't work so well since it was crunchy inside!! LOL Nose heavy is good for this bird and I use lots of expo on the elevator too.... :Cool:

[Woodcock]

Just to make sure I understand. You are saying that not only is it recommended to upgrade to the Eflite retracts, it is also recommended to create extra airflow to cool the motor? Man, I was super pumped that this warbird is back in stock but these extra mods are almost giving me second thoughts. She looks amazing though!

Give me a break would you! It's a great plane. Due your due diligence.

Woody

PS, all planes have there short comings mate. This is pretty minor stuff mate. Welcome to modeling. Sorry if I seemed short.

[Cchrissyv1]

I put the Eflight Corsair retracts before it ever left the ground. I tried the stock but could only get one to work out of the box. The Eflights have never missed a beat. Make sure to trim the dummy radial between the cylinders, and make a couple of pass thru slots to allow the air to pass over the motor and out the back of the cowl, VERY IMPORTANT! This will provide the necessary cooling. Don't balance the think like a lief on the wind, it likes to be nose heavy, make sure and put some weight up there, don't be shy with the weight. Dynam definitely had no idea on the CG of this thing. As with most of my close coupled war birds it will seem nose heavy, it likes nose heavy. Make sure to use some expo in your setup, and don't get to crazy with the throws. Good Luck!

Woody

Just to make sure I understand. You are saying that not only is it recommended to upgrade to the Eflite retracts, it is also recommended to create extra airflow to cool the motor? Man, I was super pumped that this warbird is back in stock but these extra mods are almost giving me second thoughts. She looks amazing though!

[Woodcock]

I put the Eflight Corsair retracts before it ever left the ground. I tried the stock but could only get one to work out of the box. The Eflights have never missed a beat. Make sure to trim the dummy radial between the cylinders, and make a couple of pass thru slots to allow the air to pass over the motor and out the back of the cowl, VERY IMPORTANT! This will provide the necessary cooling. Don't balance the think like a lief on the wind, it likes to be nose heavy, make sure and put some weight up there, don't be shy with the weight. Dynam definitely had no idea on the CG of this thing. As with most of my close coupled war birds it will seem nose heavy, it likes nose heavy. Make sure to use some expo in your setup, and don't get to crazy with the throws. Good Luck!

Woody

Oh yea, make sure and reinforce all the foam hinges for the control surfaces with a nice coating of Foam Tac, or Hinge tape. I prefer hinge tape. You will most likely loose a control surface in flight if you don't, guaranteed to happen. No it's not Dynam sucks! Foam hinges suck on all planes! LOL