Zirolli B25 Mitchell build

[Henrik Hammer]

Hello Richard

Thanks alot that would be very helpfull, and your B-25 looks very nice so good luck with the maiden.
I have had the smaller brother (101 inch) and it flew great very nice airplane to handle.

Here is a small video of it http://www.youtube.com/watch?v=Iu1AQkf7nNU

Hope to hear how the CG turns out.

Best Regards Henrik Hammer.

[Richard scarbrough]

Hi Henrik,
Spoke to Colin, the builder of my B25, he told me the C.G is as the plan. He has built 3 of these in total, and always balanced them as per the plan.
I hope to maiden mine in February, when I have finished my current project.
Hope this helps.
Richard.

[Henrik Hammer]

Hello Richard

Thanks alot, I have balanced mine as per plan too, and it seems the way to go. We have very bad weather here in Denmark at the moment lots of snow and freezing cold I hope to maiden mine April-May, good luck with yours, hope to hear good news, but I have never heard of a bad flying Ziroli model.

Again thanks for info and Best Regards Henrik

[Mike Booth]

I'd rather be flying your scale than this one guys.
Under powered the pilot must of been guessing by the time it became airborne .
An impressive achievement nevertheless .

http://youtu.be/ZowexXfK_Ao

Mike.

[Henrik Hammer]

Hello

Yes it is a great model but seems to struggle a little with the power dont know if they could change the pitch on the propellers to get a little more speed.
Here are a couple of videos of the model we have I hope mine flies like these seems very stable one of the guys flies it like a fighter not sure it is scale like for a bomber but speaks for the handling of the model (and the pilots skill).

http://www.youtube.com/watch?v=mtEClkXsTlg

http://www.youtube.com/watch?v=mH-KV_ltyAI

Best Regards Henrik Hammer

[Mike Booth]

The second model filmed in Poland has got a great sound and well silenced on those Roto engines.

[maurice northcott]

Mike Booth wrote

Under powered the pilot must of been guessing by the time it became airborne

Crikey, Doolittle got off Hornet in less distance than that..............

[Nick Reeves 3055]

Mike Booth wrote

Under powered the pilot must of been guessing by the time it became airborne

Crikey, Doolittle got off Hornet in less distance than that..............

just watched the vid of the big 25 and it looked to me like it was just above the stall all the time. cracking model but was it flying fast enough??

[Phil Clark]

Yes.......because it didn't fall out the sky. But was it flying fast enough to look right......uhhhhhh, NO !!!!!!!

This clip I think is from the same people......testing the 2 Moki 400's on a rig. The text quotes 42" x 10" 3 blade props......if this is what they are flying on, it may have A LOT to do with the lack of speed. The 400's don't rev much past 4,000 flat out.......on 10" of pitch!!!!!!!!!!!!!!!!!!!!!!

http://www.youtube.com/watch?v=_vfdhFYmmlo

When running the 400 in the big Skyraider, I was running a 39" x 25" 2 blade prop........and the Raider even at 82kg's wasn't too shabby on top end speed.............

Phil

[graham buchanan]

Hi All,

Yes Rolland has Upgraded the B25 to the New Vallach 500cc Radials ,should now be a different kettle of fish these should pull the 180KG Mitch about!!!

Cheers Graham

[david clarke]

Hello Graham are you sure that Vallach engines do a 500cc,i've searched there site and they only list 420cc,800cc and 1250cc radials or is it a new addition to there range?.

Cheers,Dave.

[Aaron norman]

The 500cc are made to order not a stock item

[Richard scarbrough]

Test flying my B25 tomorrow

[Richard scarbrough]

Flew B25 today,flew superb, have a noseleg issue to sort and a flap linkage. All should be good for Barkston though.

[chris willis]

Nice one Rich, looking forward to next weekend.
Chris

[stewart clifford]

Willy, I'm sure Dickie said if you let him fly your Yak you can have a go on the B25?

[Henrik Hammer]

Hello

Congratulations on your maiden glad to hear it went well. I have had mine outside for some photos in the spring sunshine and to make the initial start up of the engines. I had a little set back on my canister muffler system the headers are way to short so the engines cannot run on that system, so its back to the workshop and I am at the moment building some in cowl mufflers. I tried the engines with the supplied mufflers from the factory they run great but the factory mufflers are way too noisy for flying here in Denmark.

Here are some Photos of Panchito in the sun https://plus.google.com/photos/111994526239439977373/albums?banner=pwa&gpsrc=pwrd1#photos/111994526239439977373/albums/5861897243697068001

I will hopefully be able to post more about my maiden in a month or so.

Best Regards Henrik Hammer

[Alan Cantwell 1131]

And jonsey, the originator of this thread, is well on with another B25, stunning, as always

[Paul Holt]

Henrik, that is one very nice looking model. Any video of it flying?

[Henrik Hammer]

Hello Paul

Thanks, my model has not flown yet I am at the moment working on a new set of mufflers for the engines, but I hope to fly it within a month or so. I hope to be able to post some photos and a video at that time.

Best Regards Henrik