HENRY GELSTHORPE

It has to be strong, given the state of some people's armpits

Hi Anthony & Jason, Nice to hear of your personal experiences using the diesel heater, my "sums" were to give a handle on how long the unit would need to function before it became cost effective. In terms of a practical heating standpoint vers. costs then the diesel heater with its 5kw o/p clearly wins, providing the longevity of the unit is reasonable. I am going to see how my shed "performs" in terms of heating with some measurements, I suspect I might be going down the diesel heater option.

This is quite an interesting thread, got me wondering where the break even point would be as regards buying one of these units. So I did a bit of research: so based on the price of a unit approx £100 energy /ltr of red diesel approx 10kWhr cost of red diesel averages at £0.85 electric cost £0.27 / kWhr lets assume the unit is 100% efficient so cost per kWhr would be £0.85/10 = £0.085 saving obtained per kWhr over electric = £(0.27-0.085)= £0.185 If the unit was run at full chat always i.e.5Kw it would need to run for 100/5x 0.185 hrs =108 hrs to break even. Now clearly that is not realistic since the unit is not going to be 100% efficient and would not run at full chat all the time.lets assume the unit is at full for half the time so now the time to break even would be 216 hrs in a very rough ball park figure manner. The average modeller might spend 10 hrs a week in his shed so 21 weeks .And thats assuming 21 weeks of cold weather.

Yes a difficult item to find, personally I only managed to find the cheaper "B" grade.

Surely not a big problem in the UK🤪

I remember the cold war warning system from my telephone exchange days, I think it was called WB 1400.It had a I am "alive" tone that intermittantly sounded,it made my blood run cold.Following the end of the cold war they were all removed.

If that was the case why wasn't this implemented 2 or 3 years ago,funny now that this is being promoted against the backdrop of the rising international tensions, as regards dangerous fugitives has Borris ,Farage, and the ERG been allowed out again😂

When Putin's Avangard cans of condensed sunshine wizz here at 20 times the speed of sound, I can't see that the alarm is going to be of little use.

Hi Ron, Thanks for your recent presentation re ITAT, at one point you said that you were operating your diode laser at full power.Does that have an impact on diode laser life, how is the rated lifespan?. Henry

Thanks for the link eflightray, shows some useful build information. Sorry to hear that you have given up flying,personally I find the building of a model the more engaging aspect of the hobby. Henry

Hi Eflightray, That looks a very good rendition of the A10 despite the tractor props,I assume its a all depron construction?. Curious to how you constructed the ducts and were the ducts pointed upwards as per the actual A10. Also on the full size the tail plane is angled downwards, did you replicate that or did you need to modify it in any way? Lastly did you get abrupt trim changes if you reduced engine power? Just watched the video, yes its all depron. Henry

Hi,Just wondering, if you could use 2 tractor propellers in lieu of ducted fans. Should make a more efficient use of battery power, would there be changes required to the airframe to still be aerodynamically viable?

Hi Mike, Posted them here just in case the PM didn't get through. P S there is a good build log on rcgroups also. https://www.rcgroups.com/forums/showthread.php?3560447-VK-Corben-Super-Ace Henry img014.pdf img015.pdf img016.pdf img017.pdf

Hi Mike, just seen your request, have you located any instructions in the meantime? If not I will be able to check my kit box out for the instructions Henry

I had a look on ebay, couldn't find the item Engine Doctor referred to . Is there more than one type of laminating film, what type do I require?