All engines tested same day (September 11th 2003, a nice warm sunny day - almost ideal test conditions), same plug, same fuel (17% oil, 5% nitro), same prop (all APC), and silencers as provided with engines.

Prop.	ASP 52 ¹	C 61	JEN 56 ¹
11x6	13000		13000
11x7	11700	11800	11800
12x6	11000		11100
13x4	11800		12000
13x6	10100	10200	10400

Test 2

Both engines tested same day (April 17th 2004, a cool, overcast day - which just shows how temperature and humidity can affect performance) same plug, same fuel (18% oil, 5% nitro), same prop (all APC), and silencers as provided with engines (see below).

Prop.	ASP 52 ¹	JEN 56 ¹	JEN 56 ²
11x6	12200	12200	12500

13x6	9500	9800	10000

Test 3

The factory sent the 1st production engine via express carrier airmail. Engines tested same day (April 27th 2004, a cool, overcast day with occasional rain) same plug, same fuel (18% oil, 5% nitro), same prop (all APC), and silencers as provided with engines (see below).

Prop.	ASP 52 ¹	JEN 56 ¹
11x6	12400	12400

13x6	9600	10100

Notes

¹ Super Quiet silencer
² Standard Large Volume silencer average results (typically 200-400rpm up on the Super Quiet Silencer results on smaller props (but a fair bit noisier!!) and 200-300rpm up on larger props)

C 61 is typical figures recorded when we have serviced 'Chinese .61s' with baffled silencer
for comparison, see ASP 52's' testing done on a different day - hence slightly different performance figures - but still good for comparison reasons)

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