Hi all IMAC pilots,

more then 20 years I m flying fai f3a patterns and at the end I just bought my first gas engine ZDZ 50 NG & Midwest CAP 80''...
I check a lot rewievs about midwest cap and mostly everybody said its a good choice for that size plane...
But my question is: with this configuration zdz 50 ng is good enough power for hover ????
Did anybody try the same plane with same engine?? And any advice about modifications or how to built lighter for better vertical performance???

thanks..
happy landings...

oscar

Oscar, I haven't flown that combination but I think you'll find it has plenty of power for hovering and IMAC flying. I have a Midwest Extra with a Brison 52cc engine and it has unlimited performance. You can see a video of it on my website. Some guys replace a lot of the wood in the Midwest kits with Balsa, or route out the lightening holes to lighten the ply parts. When I built my Extra all I did was replace the spruce stringers with balsa, saved a few ounces doing that. Overall my plane turned out pretty light and I'm very happy with its performance.

Hi Ryan,

thanks for your reply and I love your web site and your midwest extra video.....it looks very powerful setup..
could you tell me what s your weight of your midwest extra?? and which prop you flying..?
I had zdz 50 ng and menz 22X8 & 22x10 ultra props... I really like your vertical performance...

happy landings
oscar

22x8 is better to hover!!

Oscar: I have a Midwest Cap that has the DA 50 in it and it will hover pretty good with a Mejlik 22-10 prop. the plane weighs 16lbs. and I fly IMAC with it mostly so I use a Mejlik 23-8 and get 6700 rpm at sea level. I think you will like this plane combo if you weight is close to mine. have fun. Rick.
PS: the 22-10 makes the verticle a rocket!!!

Thanks Rick,

as you have almost same combination of mine I would like ask which servos you are flying on your cap...
I m planning to use futaba 9402 (111 o.z. ) on all control surfaces except throttle....

also if you have any picture of your cap I would like to see it here

happy landings

oscar

Oscar, I'm not sure what mine weighs but I think 16 pounds is pretty accurate. The prop is just a regular Zinger 22-8, I've found it has better braking ability than most other props that size, plus it pulls very well and is relatively inexpensive.

I have a Midwest CAP with a Moki 1.8.
Nice flying combination.
Hovers well with Moki, so the ZDZ should be great.

In case anyone cares, I am clearing out my hanger, so I am selling mine.

With servos, batteries, regulator, engine, ect.. Only needs reciever.
$600.00

contact me for picture and info.
Wayne Dengel
[email protected]

Oscar: Sorry but I don't have any pictures that I can post on here, a lot of club members have taken some but I don't have any. The servo's that I am using are JR 4735 on each elev. and aileron, and a JR 4721 on the rudder with a single rudder servo in the tail with the elev. servo's. works just fine for IMAC but would probably want digital servo's for 3D flying. Rick.

Merhaba Oscar.

I had a Lanier CAP-232 81" Wingspan with a Brison 3.2 running an MSC 22x8 prop.
My plane was just under 16 lbs and the vertical was just fantastic.
Just be sure that if you are using a computer radio, the throttle curve is set so that you can get a good linear response. Also, try and avoid using ATV on the throttle as it limits the servo resolution.

iyi sanslar...

WAAW merhaba Tailtouch,

its very impressive that you can speak my language , also thanks for your reply...

I would like to inform you that I am using JR 10 X radio which I can easily make throttle curve ( also I use same curves on my fai f3a pattern models too)... if you have your cap pictures please let us see in your post and also I will be happy to hear about how is your cap hover performance?? ( half throttle or more or less??? )

by the way this is my new pattern plane IMPULSE ...

happy and iyi inisler (landings)

oscar (ozgur)

What altitude are you flying at?

I built the Midwest Extra with 80" wingspan and it weighed 17 pounds with a 54cc conversion engine.

Unfortunately, I was flying at 6000' above sea level and there was no way the plane would hover at that weight and altitude.

16 pounds at sea level with a 50cc engine will be ballistic.

16-17 pounds at 6000' above sea level is dismal at best.

Consider your altitude when picking your plane/engine combination.

My 80" World Models Patty Wagstaff Extra 300S weighs around 15.75-16 pounds and it takes a G-62 and a 22-10 prop at 7000RPMs to hover at 6000' above sea level. I haven't actually hovered it yet, but you can tell that it's gonna take 3/4 throttle or more to hover. Not my idea of safe really. I'd rather be hovering at 1/2 throttle. That leaves room for error. If you screw up- just point the nose up and hammer the throttle. But, if your hovering at 3/4 throttle and you screw up-- you better be good. Not much throttle left to power you up and out of harms way.

Just looking at a map-- Turkey looks pretty mountainous with lots of high altitude terrain. Whats your altitude?

we have done THAT model at 14.5 lbs - you have to toss a lotof the hardwood but it is waaaaay overbuilt.
I also did a few clones of it my own construction - much lighter yet - here is pic of recent one finished by Larry Lutton.
it has a ZDZ40 and a JMB can in it - weight about 13 lb gassed up.
We used a H9 80" Cap cowl so Larry developed the scheme around that
very tricky!
anyway - our first clone was 14 lbs with ZDZ40 and Pitts muffler - plenty of power.
we are currently doing some "what if's" on a ZDZ50 NG to see what will happen short of running Nitro -
In stock form on a pipe it is as good as it gets in the 50 cc dept.

Hi Rcpilet & Dick ,
thanks for your replies...

my city elevation is 3000' (850m.) and if I will finish my cap less then 17 lbs. I think it will have enough power for hover but we will see after 2 months... Oh god, it takes a lot of time to finish it...

happy landings
oscar

Hey dick, i see you have a foam core wing available for this plane. how much of a difference is there in weight and what is the cost.

Im going to build this plane this winter with a da 50 in it.

Can you be more specifed on what kind of mods you did to lighten the cap up. I would love to be at 14 lbs. sure would appreciate it.