John Tancock

Hi Alex

Still on the Ultra Flash then?

P120 combo is impressive, always liked Dave's.




JT

Bed time

It's looking more than likely at this moment in time as it seems to be the only airframe that matches what im looking for in an airframe.

...just need to get rid of my Katana now.

bobg

Claire ....I love that colour scheme ,keep up the hard work,amwaiting to see how a lady does her build

tp777fo

My Feedback: (28)

The UF is an amazing airplane. I crashed no.1 from stupidity the quickly replaced it. I used the trays and linkages from no.1 in no.2. Everything dropped in perfectly..even the linkage was perfect. Didnt even have to adjust the length on anything to get perfect flight control alignment.

Dave Wilshere

Robert

I came back late last night and found Claire in the workshop again working It amused me!

Dave

bobg

she may really have been watching telly ...and just lifted a tool when she heard you arrive

Claire.Alley

Ummm i hate to say this, but i'm female, i can multitask

Dave Wilshere

Robert

There was definate progress from the day before...as to whether she can multitask...I'll check later

Messy job of epoxy coating is coming...

Dave

Mavrik!

Its nose heavy!

Should be straight and level at any throttle setting!


Mav

Claire.Alley

Am planning on spending several hours in workshop later whilst my other half gets his pinny on and cooks for me!
So epoxy coating should start soon :-)

steve2972

My Feedback: (2)

Is that a Running Machine in the background!?[8D] Not bad,wide screen tv,gym,workshop all in one!

Claire.Alley

Bike - but close!
Too bad its not my workshop, its a friends thatwe areborrowing, but when Ihave a new place I am championing to have a workshop just like it

steve2972

My Feedback: (2)

Too cool Claire.Looking forward to following the build

Robrow

Ahhh....so that's why mine does it? Could have sworn the CG was pretty much by the book.

Does that mean it will dive inverted at full power?

Rob.

basimpsn

My Feedback: (5)

You might have a point there. I did try flying it inverted and its diving hard to the ground [X(]. I will try moving the C/G aft.

bobg

I thought the running machine- Bikewas Daves !!
thats the way to do it Claire,make him cook while you play ...putting on epoxy will be great fun ,just like nail varnish..

Claire.Alley

OhI wouldpay so much to see Dave on a running machine

Looking forward to the next stage - just annoyed I won't be around for the next week to get on with it!

lightningmcnulty

My Feedback: (11)

Here is mine, its powered by a k140 kero start that i'm running on diesel, love this engine.

Started the build on a monday night finished it and maidened on Saturday that same week, this thing goes together so easily and flys so well and costs so little I defy anyone to tell me of a better sport jet deal available today.

And to top it all off gary from efflux rc came to our field yesterday with a radar gun I did some fast passes and stopped when I reached 250mph upwind, thats with a slightly nose heavy setup into around 6mph wind and missing one of my main strut covers (lost it in a mid air but thats another story)

Also i'm told by Dirk from kingtech that once the engine goes in for service I will get another 4 or 5 lbs of thrust!!!












If your looking through this thread unsure if you should buy an ultra flash, GETONE, and I strongly suggest getting a K140 from Barry to power it, they are a perfect pair!

Kim

Mavrik!

Sure will

I fly mine slightly tail heavy. Inverted I just breath a touch of down (almost none required). Just makes it more pitch sensitive which is how I like to fly anyway.

Everybody has their own set up and preference, so find your sweet spot!

Then Go pull some G's!!!!!!

Happy flyin!


Mav

gooseF22

DAVID!!! the lady wants a workshop!!!!! Get Her a Workshop!!!

lightningmcnulty

My Feedback: (11)

I heard that some guys are sturggling to get a good diesel start working so I thought i'd post my parameters here

Here are the parameters as you scroll through the start menu

Auto start 2, pump start ramp 7, glow plug power 7.5, starter power at ignition 140, starter power at ramp 160, rpm starter power 15000, rpm ignition k 3.000rpm, pump PW at ignition 014, engine min flow 19%, egt end preheat 100c, rpm preheat k 5.000 rpm, rpm fuel ramp k 6.000 rpm, fuel preheat 20%,

you really need a 9.9v life battery for this, its important that you allow the fuel and turbine to really get up to temp before it starts adding large amounts of fuel.

Make sure you test all this on a stand before putting it in a jet or you could end up with a crispy exhaust pipe

another thing that is really important is to restrict the air that is blowing through the turbine on pre-heat, if you allow air to blow through it will put the flame out, when on your test stand keep it side on to the wind and once in the jet cover the intakes with your hands until your out of pre-heat.

with these settings expect it to take 30seconds to start.

Kim

rcand

Can you tell me a good but slightly conservative measurement for the CG?

DrV

My Feedback: (2)

Is this also true for the Classic Flash? Mine also climbs at full throttle. In addition, it dives hard when gear are deployed. Can anyone explain why it climbs if nose heavy. I would think it would dive if it was nose heavy at full throttle.

Thanks

smitty1001

My Feedback: (29)

DrV,

Pretty much any airplane. Short answer is, because you're carrying uptrim.

Think of it like this: you trim for level flight at some setting other than full, (trimming up to compensate for nose heavy whether you know it or not) when you go to higher throttle setting = more air across the uptrim = climb. If you then trim down to adjust for the higher airspeed, as soon as you slow = dive. It will be and endless game of compromise until proper CG is achieved.

basimpsn

My Feedback: (5)

Best answer ever