Precedent Stampe 1/4 Scale

[bert baker]

Thanks for both your inputs 

[Jon H]

Oh lord here we go again. 

 

If i recall we already had the debate regarding the tanks in your Stampe Martin and as loath as i am to get into it again the performance of the engine is poor. You might be satisfied, but i have seen it fly and you are leaving significant performance on the table with the setup you have and the engine is running nowhere near its best. No matter the tube diameter the top tank will force feed fuel into the lower without a pressure isolation setup and you will suffer mixture change problems as fuel level drops as gravity cares not about pipe diameter. Its not a good setup and i do not recommend it is copied. 

 

Cut a hole, lower the tank, job done. 

[bert baker]

It’s a shame the undercarriage wasn’t bolted to the outside of the woodwork 

 

[bert baker]

Jon did you make a access hatch in the bottom of the Fuz 
 

recently I’ve been in charge at home of Washing and squashing the plastic bottles for the bin,

 

In a moment of madness I wonder if I can deform a tank with hot water post it through a smaller hole and reverse the proses 

 

hold the replies until I’ve got my ear defenders and dark glasses on 

 

Bit of laziness and a bit of wanting to get it in the air quick also Some stupid sentimental  Reason for not breaking out the disc cutter and hammer 

 

Sprung undercarriage of the flair variety has been chatted about but I’ve only seen pictures and played with the Turbulent type

 

ive got some measurements and drawings for them 

 

 

 

 

 

[Chris Walby]

Slightly off topic, but relevant! Jon has advised me with a couple of models to move bulkheads/cut lumps out of wings and although it sounds drastic at the time in my case its been easier in the long run and avoided suboptimal engine performance. I have of course ignored Jon with another model and installed tanks side by side (easy install) and although everything seemed to run okay for a good few flights it did dead stick and at a most inconvenient time and land in a potato field! Correct installation of a tank has now resolved the issue.

Bottom line, if it dead sticks and you severally damage the model, you might have wished you had done the mod, just saying! 

[bert baker]

Yeah been in that Field twice wishing I had fitted a Magneto kill switch to my green and silver Stampe when the throttle servo packed up
 

The engine fell off on another and refused to quit until it was out of fuel 
 Half a hour later and a slot in the cowl it landed

 

Nyloc nuts now fitted 

 

[bert baker]

Dunno where the bit I just typed went It may duplicate 

[bert baker]

Ultimately I do take on board Jon’s views on the height and location of the tank,

And would agree with him,

 

there’s somewhere else better suited for this debate than this forum 

 

painful part is to overcome the how and do 

 

I recently put on some pics of My mates Stampe that has sprung undercarriage fitted,

It uses gas struts rather than springs 

 

 

 

 

[bert baker]

 

[bert baker]

 Where there’s a wheel there’s a tyre 

well something like that

 

 

[bert baker]

If only they had done the wire differently 

[bert baker]

Yellow one was my second Stampe

wings clapped exiting a loop

my son William was flying it.

How the years have passed, think he was around 8 years old when that happened,
 

It was with my new Laser 150 only a few flights old I had to purchase a new carb

 

I kept a few bits dunno why but they are good for reference points

[Michael Denest]

Bert, what are the wheels you’re using? They look like 1930’s low pressure tires. 

[cymaz]

There is an Evolution 26gx for sale on FB if anyone is interested. Being a beam mount and front mounted carb, installation should be more straightforward. 

 

https://www.facebook.com/groups/2731304653765479/permalink/3524277284468208/?sale_post_id=3524277284468208&fs=e&s=cl

[bert baker]

3 hours ago, Michael Denest said:

Bert, what are the wheels you’re using? They look like 1930’s low pressure tires. 

There the standard wheels that came in the kit,

 

I also thought the old

kit came with a black SLEC tank

[bert baker]

3 minutes ago, bert baker said:

There the standard wheels that came in the kit,

 

I also thought the old

kit came with a black SLEC tank

Well I thought they were,

I just had a look in in the two kits I have and no tanks and no wheels,

 

[bert baker]

Most strange no wheels or tanks

[bert baker]

1 hour ago, cymaz said:

There is an Evolution 26gx for sale on FB if anyone is interested. Being a beam mount and front mounted carb, installation should be more straightforward. 

 

https://www.facebook.com/groups/2731304653765479/permalink/3524277284468208/?sale_post_id=3524277284468208&fs=e&s=cl

Had the 28cc one,MVVS

proper power house

 

found the exhaust was a bit to big 

[bert baker]

I can do scale if I really want to 

[bert baker]

[cymaz]

32x18 prop! What monster do you have in that

[Jon H]

28 minutes ago, bert baker said:

I can do scale if I really want to 

 

 

 

 

 

Dont tell me, you were ground running the engine with the model tied down, and the torque of that massive prop flipped the whole garden over? Smaller engines Bert, you have to use smaller engines 😉 

[Jon H]

Oh and my model came with a hole in the bottom. I use it for the ignition battery as that sits under the tank. 

 

[bert baker]

22 minutes ago, Jon - Laser Engines said:

 

 

Dont tell me, you were ground running the engine with the model tied down, and the torque of that massive prop flipped the whole garden over? Smaller engines Bert, you have to use smaller engines 😉 

Yep you’ve had same issue plays havoc the the locals down the pub

[bert baker]

41 minutes ago, cymaz said:

32x18 prop! What monster do you have in that

Errrrmmmm

Dare I say it,

A Zenoah G38 on a reduction drive

my Big Moth has same setup but is the variant for the moth