er, be my guest… anytime 😀
for the answer, reread my previous post… no way it does what you say… matter of physics… for example:
– drag isn’t just about frontal section, especially supersonic drag
– your turbofan will have pretty much zero thrust at such altitudes, as there’s little to no air to generate thrust from
– your rocket boosters will be visible in IR and UV as soon as they come above the horizon (which means, basically, for a Mig-31 cruising @ 60000ft and which has its horizon some 500km ahead, as soon as they are ignited, even on the ground)
so, you’ll have to glide (no thrust to speak of), against high drag (high speed), with very low inertia (low mass), with a shape that can maintain anything resembling lift only at very high speeds at such altitudes… no way it does what you imagine, sorry
You could be right mate.
I think we have to change the tactics…we shoot the plane fast into mach 0.9 with them rockets where the fan pushes it at three top level…and goes behind the foe where its radar cannot see it..shoots down the ****** and lands for a well earned meal.
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er, did you try to maneuver your model? for going straight and fast it’s a fine shape (the X-47 had a similar one), but once you start trying to turn sharply you’ll have problems. Besides, the wingload we talk about is nowhere near a paper model.
Finally, you talk about a zoom climb on rocket power… pretty much anything flying on the next decades will have an IRST of some sort (and pretty advanced as well), which will allow for an early detection of your rocket engines climbing, even far away… and your overheated fuselage (for those modern IRST, your supersonic flight in cold air will stand out like a lighthouse in the middle of the night) will be a nice target which will rapidly see a few missiles coming its way… missiles it won’t be able to outturn while coming their way during its “supersonic glide” (necessary if you want to be able to do anything other than falling @ FL980 with so little wingspan)
last, but not least, you need to add into equation the drag it will generate at supersonic speeds… with such a small mass, it will need a high thrust to keep going, and your turbofan may experience some problems in generating it in thin air that one encounters at such altitudes.
So, in order to recapitulate: you want to make a highly visible target for the Mig31, target which won’t be able to maneuver and avoid even the crudest IR missile sent its way…
Ok now you do have a tighter grip on this.
The plane will shut down the inlet for turbofan at 10-15 000 meters ( or at mach 1.1 )..it has 40% frontal area of Bell X-1E and less span…which did go 27 km at mach 2.25…with only 27 kN ( 75% of the VR ).
The VR scrambles when Mig-31 is 300-400 KM away..IRST does not see it..at any stage.
Earth will cause the plane same “thrust” as the rockets on the way up..up to 10-15 KM where the turbofan is ignited again..or not..could be ignited when the pilot overshoots the runway.
Due to the engine installation and subsonic speed at lower the IR missiles are no good on this ( and radar cannot detect it ).
Besides the climb takes 2 minutes..it still has so called GETAWAY power for the rockets if an AAM is fired upon it. Even AIM-120 can’t touch this ( due to the speed )..if the pilots uses the assets and some “pilot ****”.
I can envision something like this for future air-defence purposes for small nations.
I also see this as the only AC that we need in current situation…this can meet an MIG-31 with 10 000 meters altitude advantage and 0.5 mach speed advantage.
This fits APG-67 radar…and this is supercruise AC with the smallest ever turbofan.
Furthermore..it has 1/5th frontal area ( RCS must be less than a pin head ) of the F-22.
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Folland Gnat may have been a tad smaller overall.
Undeveloped version of VELOCIRAPTOR below.

…no shots on goal !
some of the problems with your fighter would be:
– high approach speed due to the wing planform
– lateral stability issues due to the same reason
– low fuel capacity due to midget size (basically, you’ll be bingo fuel when reaching about 2-3rds of your take off runway, or almost…)
– rocket engines will be dead weight once used
– little space left for electronics onboard (and you’ll need lots of these in the future)
– etc…
I agree it has speedy planform…but it is overwinged…it has only 170 kg/m2 wingloading with still punch capability.
The model seemed to be very stable.
Small size does not mean bingo on the runway..since the cruise engine burns only 380 liters / hour ! Compare to 50 000 liters / hr for JSF F-35 on AB.
I agree rockets engines are dead after the plane has reached 98 000 ft altitude ( in 2 minutes )..from where it can glide 600 km !
Buzz and Neil needed a computer size of a modern Ti-35 pocket calculator to go to moon.
So it was a good try..but no hits this time.

Wing shape is close to F-16 XL.
It is called cranked arrow delta wing.
Some other comparisons added.
Frontal area is 16.5 % smaller than on a Folland Gnat that went supersonic in a dive ( level mach 0.98 ).
It has more than half less frontal with Me-109 and Bell X-1 ( that went mach 2.25 in 27 km ).
I am into light aeroplanes now adays…
DAEDALUS..HPA !
But I think it is like biggest fish..biggest wasn’t caucht yet !
I agree..like Van’s RV aircraft predecessor !
I think perhaps the OP has a point when he asks are we really giving up stuff. If I desired to play golf more than I desire to fly then I suppose I would be playing golf. Unless you are a multi millionaire then life does come down to choices as to what you spend your money on. I’m not poverty stricken, don’t get me wrong but I have had the odd comment when it crops up in conversation that I fly of ‘rich men’s toys.’ Not in a malicious way it has to be said.
I once had a conversation with a guy at work I know, I work for the county music service by the way. He was interested in the fact that I had a PPL and often made the comment that he would like to do it but couldn’t afford it and he didn’t know where I got the money from. I sat him down and worked out he could easily afford it (he’s on the same pay grade as me) if he gave up xy and z. Most people don’t actually know how much they spend on a night out at the restaurant followed by the pub followed by the taxi. When you do that once a week or maybe more then it soon adds up. As you say Moggy, I would rather be at FL90 exercising mind and spirit than peeing it up against a wall.
Being situated where I am, most interesting things happening are an hour away or less. Old Buck, Duxford, Shuttleworth, Elvington, Bruntingthorpe are all well under an hour. Take a couple of cost sharing mates/pilots to a fly in/wings n wheels and it soon becomes a not as expensive as you think day out. Old Buck next Sunday will be about 45 minutes away and around £60 each for three of us. Less than a night on the town.
But one can always play golf…and with few bucks you can get a disc and play frisbee golf. I have invested 200 euros this summer to play golf..and I played 3 rounds.
One of my aeroplane desings is a small compact plane that fits a ward drobe when wings and tail/prop off. Wouldn’t much change the way of living…but I could end up more dead than my buddies with a 6-7 m spanning 18 hp aeroplane.
Please Moggy save us from further details.
Please Moggy save us from further details.
I think they were just turning a high banking left turn and the latter stalled in the jet wash.
Just my opinion of course. I mean the 30.6.2012 accident.
US accident was a cross over..maybe jetwash and stall too…maybe the engine stalled…had flame out ?
Those apparently have no e-seats.
You might like to contact QinetiQ at Farnborough who with their Zephyr UAV hold the world record for endurance using solar/battery power with 14 days airborne.
Zephyr may look like an overlarge model but it pushed many technical boundaries.
Sounds as if they are busy with something else..this idea of 400-500 km/h flying solar/muscle powered high flyer did dot interest them at all.
I bet trying to promote this will be like Jules Verne making books about flying some century and half ago…there were only balloons back then.
Ok thanks…I did contact them.
Very interesting indeed…seems like they are pioneers in the field.
http://thefutureofthings.com/pod/1017/zephyr-the-solar-champion.html
Span increase to 80+ meters !
Very quiet now…any comments ?
It has now 64 people designed in and effective AR is 30:1 ( l/d at 50:1 – 60:1 ).
I figured it has same power to weight ratio at altitude as did the Wren in Lympne Trials in 1924. About 5 x better than Solar Impuls at 12 000 meters.
Pedallers ( 50 ) do the atmosphere and sun takes care of the speed at very thin air ( 1/4 th of the thicknes at sea level ). In optimised conditions it might hit 400 km/h..I know this sounds almost absurd. Batteries take it first into the altitude.
It has 1/23 space for the folks compared to 747 and they are packed in 4x tighter than in a regular jet airliner..this would be the largest spanning airliner ever ( Hercules is bigger ).
Wingloading 19 kg/m2 and mass 5900 kg. It is feather lite. Made of carbon, ply and foam.
I have concentrated on “weak powered flight” since 2007..so this actually did not come that sudden to me.
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My late greetings and congratulations to her royal highness Queen Elisabeth II ..if she reads this !!! You are great and remind me of my aunt in Kauhava !