Topic: Feibao Jets: F5

Richard,
I completely understand the time and money You invested in the model. Remember, I lost my painstakingly modified and painted MiG-21 bis. But,
as a result I will never hassle with the Chinese kits again. Too many problems with them.
Glad FeiBao is willing to step up on this one for You, this is not always the case as I´ve understood.
There´s the whole winter of time to build...

BR,
TP.


Thanks buddy,  it may not be scratchbuilt but alot of time, effort  and money still went into it and need to be replaced. New kit arrives in Feb/March.
Happy Days   Richard.
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Hi Rich

Knowing the insides of the F-5 well having built the Skymaster version, I suspect your hatch was 'blown' out from inside rather than being ripped off from the outside.

The intakes on the F-5 are large, and aren't linked to a full 'bypass' ducting.....the intake mouldings as basically as per a D/F model ending in an approx 5" diameter duct. We then drop the turbine in a void under the top hatch and the only 'outlet' area is via the bifurcated tail pipes......the area of which is no where near as large as the intake area. So, as soon as this thing starts moving forwards, more air is getting in that can get out, so the fuz will be pressurised..........do this at 150+ and I suspect there will be quite an internal pressure trying to blow open the tail end hatch, the main gear doors, airbrakes and even the top hatch..........

Can you not run a full bypass system so that all incoming air passes over the turbine and out the back end without entering the main fuselage cavity?.......I suspect simply beefing up the tail end hatch won't be a guaranteed fix

Just my 2p's worth...........

Phil

Hi Phil,
You are exactly on the same wavelength as me, I said on an earlier post that I thought the hatch blew out, because every time i flew it I had either the doors opening or the airbrakes opening when the speed built up despite fitting extra BVM rams. Funnilly enough, Martyn from Acejets the kit importer feels the same way. the kit did come with a full bypass but was not easy to fit, so I elected to use half the bypass like alot of people do with their jets. (my L39 has only a part bypass) However, due to the narrow shape of the F5, I think your right too much air builds up at speed. One of the mods is to fit full bypass and maybe reduce intakes inside the ducts. However the Feibao F5 flying at the Xmas bash seemed okay, but was fitted with a smaller engine. Many thanks for your thoughts.
Richard.

I had good news today, my engine is repairable which is amazing .whilst it is being done I will have it upgraded to Kero start.
It is beginning to rise from the ashes!!!
Richard.

Good news indeed!   

Good news Richard you must have trod in some lucky s**t somewhere mate

I had good news today, my engine is repairable which is amazing .whilst it is being done I will have it upgraded to Kero start.
It is beginning to rise from the ashes!!
Richard.

Sounds like you must have friends in high places!

Garry

Hi Chaps,
You won't believe it my replacement F5 has turned into this:

Richard.

Never mind Richard, you can't have everything LOL

Looks nice mate, which make is it?

It is the Feibao kit Dunc, I will carry out a build thread once it arrives and I have time to start it.
Cheers Richard.

Excellent choice Richard, you won't regret it.

m

Good to have friends in the right places Richard

Very nice, can't go wrong with a T-33! My mate has one in a similar scheme.   

You won't believe it my replacement F5 has turned into this:

Sorry, I don't believe it! 

Should have the T33 soon , be painted at the moment so Feibao have told me.
I will carry out a build thread like i did with the F5 if anybody intrested

Hope to see some of you at Barkston next weekend.
Richard.

Don't suppose they told you how mine's coming along? 

Should have the T33 soon , be painted at the moment so Feibao have told me.
I will carry out a build thread like i did with the F5 if anybody intrested
Richard.

Does the Pope do religion    course we are interested.

Charlie C

...course we are interested.

Ditto! 

Don't suppose they told you how mine's coming along? 

  Not sure Gary, ask Marytn at the weekend. Looking forward to a fun time.
Richard.

Yay the T33 has arrived pictures and a new thread soon..
Richard.